OWNER’S MANUAL
FX10X
FX10RTX
FX10RTRX
FX10RTRAX
FX10MTX
FX10MTRX
FX10MTRAX
LIT-12628-02-69
8GL-28199-10
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ESU10040
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Introduction
ESU10120
Congratulations on your purchase of a
Yamaha snowmobile. This model is the result
of Yamaha’s vast experience in the produc-
tion of fine sporting and touring snowmobiles.
It represents the high degree of craftsmanship
and reliability that have made Yamaha a lead-
er in these fields.
This manual will give you an understanding of
the operation, inspection, and basic mainte-
nance of this snowmobile. If you have any
questions concerning the operation or main-
tenance of your snowmobile, please consult a
Yamaha dealer.
To maintain the high quality and performance
of this snowmobile, it is important that you and
your Yamaha dealer pay close attention to the
recommended maintenance schedules and
operating instructions contained within this
manual.
FX10X
FX10RTX
FX10RTRX
FX10RTRAX
FX10MTX
FX10MTRX
FX10MTRAX
OWNER’S MANUAL
©2007 by Yamaha Motor Corporation,
U.S.A.
1st Edition, April 2007
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in Japan.
P/N LIT-12628-02-69
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Important manual information
ESU10150
EWS00020
WARNING
EWS00010
Failure to follow WARNING instructions
could result in severe injury or death to the
snowmobile operator, a bystander, or a
person inspecting or repairing the snow-
mobile.
WARNING
PLEASE READ AND UNDERSTAND THIS
MANUAL COMPLETELY BEFORE OPER-
ATING THE SNOWMOBILE.
ECS00010
CAUTION:
A CAUTION indicates special precautions
that must be taken to avoid damage to the
snowmobile.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
NOTE:
G Yamaha continually seeks advancements
in product design and quality. Therefore,
while this manual contains the most current
product information available at the time of
printing, there may be minor discrepancies
between your snowmobile and this manual.
If there is any question concerning this
manual, please consult a Yamaha dealer.
G This manual should be considered a per-
manent part of this snowmobile and should
remain with the snowmobile when resold.
Particularly important information is distin-
guished in this manual by the following nota-
tions.
The Safety Alert Symbol means ATTEN-
TION! BECOME ALERT! YOUR SAFETY IS
INVOLVED!
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Location of the important labels ..... 4
Break-in ........................................ 31
Strap (FX10MT / FX10MTR /
Control functions ..............................9
Throttle lever .................................. 9
Engine overheating prevention
Stopping the engine ..................... 38
system ......................................... 9
Throttle override system
(T.O.R.S.) .................................... 9
Speedometer unit ......................... 11
High beam indicator light .............. 12
Low coolant temperature indicator
light ............................................ 12
Fuel meter and grip/thumb
warmer level indicator ............... 12
Fuel level warning indicator .......... 13
Oil level warning indicator ............ 14
Coolant temperature warning
Periodic maintenance..................... 39
Periodic maintenance chart for
General maintenance and
play ........................................... 45
indicator ..................................... 14
Self-diagnosis device ................... 14
Engine stop switch ....................... 15
Headlight beam switch
Grip/thumb warmer adjustment
switch ........................................ 15
Auxiliary DC jack (FX10MT /
FX10MTR / FX10MTRA) ........... 16
Brake lever ................................... 16
Parking brake lever ...................... 17
Shift lever (FX10 / FX10RTR /
V-belt ............................................ 54
Drive chain housing ..................... 57
Brake and parking brake .............. 58
Skis and ski runners ..................... 60
Steering system ........................... 61
Drive track and slide runners ....... 61
High-profile pattern drive track ..... 64
Lubrication ................................... 64
Replacing a headlight bulb ........... 65
Adjusting the headlight beams ..... 66
FX10RTRA / FX10MTR /
FX10MTRA) .............................. 18
Shroud and covers ....................... 18
Drive guard ................................... 19
Storage pouch .............................. 19
Fuel .............................................. 20
Suspension .................................. 21
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Contents
Fittings and fasteners ................... 66
Battery .......................................... 66
Replacing a fuse .......................... 67
Troubleshooting .............................69
Specifications .................................74
Consumer information....................77
Identification number records ....... 77
YAMAHA MOTOR
CORPORATION, U.S.A.
SNOWMOBILE LIMITED
WARRANTY............................... 78
YAMAHA EXTENDED SERVICE
(Y.E.S.)....................................... 81
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Safety information
ESU10181
4. Do not operate the snowmobile after
drinking alcohol or taking drugs. Your
ability to operate the snowmobile is re-
duced by the influence of alcohol or
drugs.
When you ride your snowmobile, you must
know and use the following for your safety.
Severe injury or death may result if you ignore
any of the following.
Before operating
1. Read the Owner’s Manual and all labels
before operating this snowmobile. Be-
come familiar with all of the operating
controls and their function. Consult a
Yamaha dealer about any control or func-
tion you do not understand.
5. For safety and proper care of the snow-
mobile, always perform the pre-operation
checks on page 29 before starting the en-
gine. Check the throttle, brake, and steer-
ing for proper operation every time before
starting the engine. Make sure that the
throttle lever moves freely and it returns
to the home position when it is released.
6. Apply the parking brake before starting
the engine. Never drive the snowmobile
with the parking brake applied. This may
overheat the brake disc and reduce brak-
ing ability.
7. Do not allow anyone to stand behind the
snowmobile when starting, inspecting, or
adjusting the snowmobile. A broken
track, track fittings, or debris thrown by
the track could be dangerous to the oper-
ator or bystanders.
2. This snowmobile was not manufactured
for use on public streets, roads, or high-
ways. Such use is prohibited by law, and
you could collide with another vehicle.
3. This snowmobile is designed to carry the
OPERATOR ONLY.
Passengers are prohibited. Carrying a
passenger can cause loss of control.
8. Handle fuel with care; it is HIGHLY
FLAMMABLE.
G Never add fuel when the engine is run-
ning or hot. Allow the engine to cool for
several minutes after running.
G Use an approved fuel container.
1
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Safety information
G Fill the fuel tank outdoors with extreme
Operation
care. Never remove the fuel cap in- 1. Do not run the engine indoors, except
doors. Never fill the fuel tank indoors.
G Never refuel while smoking or in the vi-
cinity of an open flame.
G Make sure that the fuel tank cap is
closed securely after refueling. Wipe
up any spilled fuel immediately.
when starting the engine to transport the
snowmobile in or out of the building.
Open the outside doors; exhaust fumes
are dangerous.
2. Be careful where you ride. There may be
obstacles hidden beneath the snow. Stay
on established trails to minimize your ex-
posure to hazards. Ride slowly and cau-
tiously when you ride off of established
trails. Hitting a rock or stump, or running
into wires could cause an accident and
injury.
3. This snowmobile is not designed for use
on surfaces other than snow or ice. Use
on dirt, sand, grass, rocks, or bare pave-
ment may cause loss of control and may
damage the snowmobile.
9. If you swallow some gasoline, inhale a lot
of gasoline vapor, or get some gasoline
into your eyes, see your doctor immedi-
ately. If any gasoline spills on your skin or
clothing, immediately wash your skin with
soap and water, and change your
clothes.
10. Wear protective clothing. Wear an ap-
proved helmet, and a face shield or gog-
gles. Also, wear
a
good quality
snowmobile suit, boots, and a pair of
gloves or mittens that will permit use of 4. Avoid operating on glare ice, or on snow
your thumbs and fingers for operation of
the controls.
which has a lot of dirt or sand mixed in.
Operation under such conditions will
damage or result in rapid wear of ski run-
ners, drive track, slide runners, and drive
sprockets.
5. Always ride with other snowmobilers
when going on a ride. You may need help
if you run out of fuel, have an accident, or
damage your snowmobile.
6. Many surfaces such as ice and hard-
packed snow require much longer stop-
ping distances. Be alert, plan ahead and
2
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Safety information
begin decelerating early. The best brak-
ing method on most surfaces is to release
the throttle and apply the brake gently—
not suddenly.
Maintenance and storage
1. When laying the snowmobile on its side
for maintenance, use a suitable stand to
keep it level.
2. Do not leave the snowmobile on its left
side for an extended period of time. Fuel
may leak out from the fuel breather hose.
3. Modifications made to the snowmobile
not approved by Yamaha, or the removal
of original equipment may render your
snowmobile unsafe for use that may
cause severe personal injury. Modifica-
gal to use.
4. Never store the snowmobile with fuel in
the fuel tank inside a building where igni-
tion sources are present such as hot wa-
ter and space heaters, an open flame,
sparks, clothes dryers, and the like. Allow
the engine to cool off before storing the
snowmobile in an enclosed space.
5. Always refer to the “STORAGE” section
on page 72 if the snowmobile is to be
stored for an extended period.
6. Maintain or replace safety and instruction
labels, as necessary.
3
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Safety information
5
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Description
ESU10260
1. Storage pouch
2. Tool kit
3. Coolant reservoir
4. Air filter
5. Battery
6. Main fuse
7. Oil filler cap
8. Fuse box
9. Strap (FX10MT / FX10MTR / FX10MTRA)
10. Tail/brake light
11. Slide rail suspension
12. Drive track
6
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Description
1. Brake lever
13. Oil level warning indicator
2. Parking brake lever
3. Grip/thumb warmer adjustment switch
4. Headlight beam switch
5. Engine stop switch
6. Throttle lever
14. Coolant temperature warning indicator
15. Self-diagnosis warning indicator
16. Speedometer
17. Odometer/tripmeter/engine speed meter
18. Fuel meter and grip/thumb warmer level in-
dicator
7. Main switch
19. Fuel meter indicator
8. Shift lever (FX10 / FX10RTR / FX10RTRA /
FX10MTR / FX10MTRA)
9. Auxiliary DC jack (FX10MT / FX10MTR /
FX10MTRA)
20. High beam indicator light
21. Low coolant temperature indicator light
22. Warning light
10. “RESET” button
11. “SELECT” button
23. Grip warmer indicator
24. Thumb warmer indicator
12. Fuel level warning indicator
7
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Description
NOTE:
G The snowmobile you have purchased may differ slightly from those shown in the figures of
this manual.
G Design and specifications are subjected to change without notice.
8
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Control functions
ESU10291
the throttle is spring-loaded, the snowmobile
will decelerate, and the engine will return to
idle when it is released.
Main switch
The main switch controls the ignition and
lighting systems. The various positions are
described below.
1. Throttle lever
EWS00030
1. Off
2. On
3. Start
WARNING
Check the throttle, brake, and steering for
proper operation before starting the en-
gine. (See page 29.)
Off
The ignition circuit is switched off.
The key can be removed only in this position.
On
The ignition circuit is switched on.
Start
The starting circuit is switched on.
The starter motor cranks the engine.
ECS00020
ESU10321
Engine overheating prevention
system
This model is equipped with a system, which
prevents overheating when the engine is
idling.
When the engine has been idling for 3 min-
utes or longer and the coolant temperature
has risen above 100 °C (212 °F), the engine
automatically stops to prevent overheating.
CAUTION:
Release the switch immediately after the
engine starts.
NOTE:
NOTE:
The engine can be started after it stops.
The headlights and taillight come on after the
engine is started.
ESU10344
Throttle override system
ESU10310
(T.O.R.S.)
Throttle lever
EWS00040
Once the engine is running cleanly, squeez-
ing the throttle lever will increase the engine
speed and cause engagement of the drive
system. Regulate the speed of the snowmo-
bile by varying the throttle position. Because
WARNING
G If the T.O.R.S. is activated, make sure
that the cause of the malfunction has
been corrected and that the engine can
be operated without a problem before
restarting the engine.
9
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Control functions
G Be sure to use the specified spark plug Running
T.O.R.S. will not work properly.
If the throttle bodies or throttle cable malfunc-
tions during operation, the T.O.R.S. will oper-
ate when the throttle lever is released.
The T.O.R.S. is designed to override the fuel
injection and limit the engine speed to less
than the clutch engagement speed if the throt-
tle valves fail to return to the idle position
when the throttle lever is released. (See page
74 for the clutch engagement speed.)
1. Throttle position sensor (throttle valve open
position)
2. Throttle switch (on)
Idling /
starting
Running
Trouble
Trouble
Throttle
switch
Off
On
Off
Throttle
position
sensor
Closed
Run
Open
Run
Open
T.O.R.S.
will oper-
ate.
Engine
Idling / starting
1. Throttle position sensor (throttle valve open
position)
2. Throttle switch (off)
NOTE:
G When the T.O.R.S. is activated, the warn-
ing light and self-diagnosis warning indica-
tor will flash, and the two-digit code “84” will
flash in the meter display.
G The T.O.R.S. monitors the condition of the
throttle position sensor, speedometer as-
sembly, and speed sensor, and will operate
if any of the monitored items is disconnect-
ed or is malfunctioning.
1. Throttle position sensor (throttle valve
closed position)
2. Throttle switch (off)
3. Throttle cable
10
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Control functions
The grip warmer level is initially displayed for
5 seconds, then the display switches to the
fuel meter.
1. Warning light “
”
2. Self-diagnosis warning indicator “
3. Two-digit code “84”
”
ESU12720
1. Warning light “
”
Speedometer unit
The speedometer unit is equipped with the
following:
2. Low coolant temperature indicator light
“
”
3. Meter display
G a digital speedometer (which shows the
riding speed)
G an odometer (which shows the total dis-
tance traveled)
G a tripmeter (which shows the distance trav-
eled since it was last set to zero)
G an engine speed meter (which shows the
engine speed; not for use while riding)
G warning indicators (which show self-diag-
nosis, coolant temperature, fuel level, and
oil level warnings)
Odometer, tripmeter, and engine
speed meter modes
Pushing the “SELECT” button switches the
display between the odometer mode “ODO”,
tripmeter mode “TRIP”, and engine speed
meter mode “r/min”.
To reset the tripmeter, push the “RESET” but-
ton for at least 1 second while the tripmeter is
displayed.
G indicator lights (which show high beam and
low coolant temperature conditions)
G a warning light (which shows warnings to-
gether with the warning indicators)
G a fuel meter (which shows the fuel remain-
ing in the fuel tank)
G a grip/thumb warmer level indicator (which
shows the grip warmer or the thumb warm-
er level)
After the main switch is turned on, the warning
light, the low coolant temperature indicator
light, and all segments of the meter display
turn on and off once.
1. “SELECT” button
2. “RESET” button
NOTE:
G To switch the speedometer, odometer, and
tripmeter displays between kilometers and
miles, select the odometer mode “ODO”,
11
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Control functions
and then push the “SELECT” button for at
least 10 seconds while the snowmobile is
stopped.
checking the snowmobile and performing
basic maintenance. The engine speed
meter should not be used while riding the
snowmobile since the reading will vary from
the actual engine speed.
EHSU1i0g410h beam indicator light “
”
1. Low coolant temperature indicator light
“
”
The high beam indicator light comes on when
the high beams of the headlights are switched
on. (See page 15 for headlight beam switch
operation.)
The snowmobile can be operated normally af-
ter the indicator light goes off.
NOTE:
Operate the snowmobile at low speeds when
the low coolant temperature indicator light is
on. If the engine speed is too high, maximum
engine speed is reduced to protect the en-
gine.
ESU10431
Fuel meter and grip/thumb
warmer level indicator
The fuel meter and grip/thumb warmer level
indicator have eight segments which show
the amount of fuel remaining in the fuel tank,
the grip warmer level, or the thumb warmer
level.
1. High beam indicator light “
”
ESU10471
Low coolant temperature indi-
cator light “
”
The low coolant temperature indicator light
comes on when the coolant temperature is
low and informs the rider that the snowmobile
should be warmed up. After the engine is
started, warm it up until the indicator light
goes off.
1. Fuel meter and grip/thumb warmer level in-
dicator
12
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Control functions
Fuel meter
The display segments of the fuel meter disap-
pear towards “E” (Empty) as the fuel level de-
creases. When only one segment is left near
“E”, the fuel level warning indicator and the
warning light come on.
1. Grip/thumb warmer adjustment switch
1. Fuel level warning indicator “
2. Warning light “
”
”
If the fuel level warning indicator and the
warning light come on, refuel as soon as pos-
sible.
1. Grip warmer indicator “
”
NOTE:
2. Thumb warmer indicator “
”
The snowmobile must be stopped on a level
surface to obtain an accurate fuel meter read-
ing, since the reading changes according to
the movement and inclination of the snowmo-
bile.
NOTE:
G The grip/thumb warmer level is displayed
for 5 seconds after releasing the grip/thumb
warmer adjustment switch, then the display
switches to the fuel meter.
Grip/thumb warmer level indicator
When the grip warmer side of the grip/thumb
warmer adjustment switch is pressed, the grip
warmer indicator comes on and the display
switches to the grip warmer level.
When the thumb warmer side of the
grip/thumb warmer adjustment switch is
pressed, the thumb warmer indicator comes
on and the display switches to the thumb
warmer level.
G When the engine is started, the grip/thumb
warmer levels are set to the levels selected
when the engine is stopped.
ESU10450
Fuel level warning indicator “ ”
The fuel level warning indicator indicates a
malfunctioning sensor, disconnected coupler,
broken lead, or short circuit when detected by
the self-diagnosis device of the snowmobile.
The fuel level warning indicator, warning light,
and all segments of the fuel meter warn the
rider of the above problems by flashing con-
tinuously.
13
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Control functions
When this occurs, have a Yamaha dealer in- If the oil level warning indicator and the warn-
spect the snowmobile as soon as possible.
ing light do not go off, check the engine oil lev-
el in the oil tank (see page 48 for engine oil
level checking procedures), and add engine
oil if necessary.
ESCU10o511olant temperature warning
indicator “ ”
If the engine overheats, the coolant tempera-
ture warning indicator and the warning light
come on. When this occurs, stop the engine
immediately and allow the engine to cool
down, and then check the coolant level in the
coolant reservoir. (See page 52 for checking
procedures.)
1. Fuel level warning indicator “
”
2. Warning light “
”
3. Fuel meter
EOSUi1l04l60evel warning indicator “
The oil level warning indicator and the warn-
ing light come on when the engine oil level is
low.
”
1. Coolant temperature warning indicator “
”
2. Warning light “
”
ECS00040
CAUTION:
Do not operate the engine if it overheats.
1. Oil level warning indicator “
2. Warning light “
”
ESU12680
”
Self-diagnosis device
If the oil level warning indicator and the warn-
ing light come on, place the snowmobile on a
level surface and allow it to idle for one
minute.
If the oil level warning indicator and the warn-
ing light go off, the engine oil level is sufficient,
however it is getting low. Add engine oil as
soon as possible.
This model is equipped with a self-diagnosis
device for various electrical circuits.
If any of those circuits are defective, the warn-
ing light and the self-diagnosis warning indi-
cator will flash, and a two-digit error code will
flash slowly in the tripmeter/odometer display.
14
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Control functions
1. Warning light “
”
1. Engine stop switch“
”
2. Self-diagnosis warning indicator “
3. Two-digit error code
”
During the first few rides, practice using the
stop switch so that you can react quickly in an
emergency.
ESU10661Headlight beam switch
“LIGHTS”
Push the headlight beam switch to change the
headlight to high beam “HI” or to low beam
“LO”.
EWS00650
WARNING
If the self-diagnosis warning indicator and
warning light flash continuously, and an
error code is displayed during operation,
there may be some problem with an elec-
trical circuit, couplers, etc.
Note the error code, and then have a
Yamaha dealer inspect the snowmobile as
soon as possible in order to avoid engine
damage.
ESU10530
Engine stop switch “ ”
The engine stop switch is used to stop the en-
gine in an emergency. Simply push the stop
switch to stop the engine. To start the engine,
pull the stop switch and proceed with starting
the engine. (See pages 31 for engine starting
procedures.)
1. Headlight beam switch “LIGHTS”
2. High beam “HI”
3. Low beam “LO”
ESU10670
Grip/thumb warmer adjustment
switch
The grip/thumb warmer adjustment switch
controls the electrically heated handlebar
grips and throttle lever.
15
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Control functions
1. Grip/thumb warmer adjustment switch
1. Auxiliary DC jack cap
2. Auxiliary DC jack
To raise the temperature
To raise the grip warmer temperature, press
the “ ” side of the switch. To raise the thumb
warmer temperature, press the “ ” side of
the switch.
NOTE:
After using the auxiliary DC jack, be sure to
remove the accessory power plug from the
jack and close the auxiliary DC jack cap.
To lower the temperature
Continue to press the switch until the temper-
ature level returns to the minimum level, and
then raise the temperature to the desired lev-
ECS00120
CAUTION:
G Do not use accessories requiring more
than the maximum rated capacity for the
auxiliary DC jack. This may overload the
circuit and cause the fuse to blow. (See
page 67 for the specified amperage.)
G Do not use an automotive cigarette light-
er or other accessory with a plug that
gets hot because the jack can be dam-
aged.
el.
ESU10690
Auxiliary DC jack (FX10MT /
FX10MTR / FX10MTRA)
The auxiliary DC jack is located in the front
panel and can be used for accessories.
NOTE:
The auxiliary DC jack cannot be used if the
engine is not running.
Maximum rated capacity:
DC 12 V, 2.5 A (30 W)
To use the auxiliary DC jack
1. Start the engine.
2. Open the auxiliary DC jack cap, and then
insert the accessory power plug into the
jack.
ESU10560
Brake lever
The snowmobile is stopped by braking the en-
tire drive system.
Squeeze the brake lever towards the handle-
bar grip to stop the snowmobile.
16
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Control functions
3. Tighten the locknut securely after adjust-
ing the brake lever.
ESU10580
Parking brake lever
When parking the snowmobile or starting the
engine, apply the parking brake by moving the
parking brake lever to the left.
1. Brake lever
NOTE:
When the brake lever is operated, the brake
light will illuminate.
ECS00060
CAUTION:
1. Parking brake lever
Make sure that the brake lever end does
not project out over the handlebar end.
This will help prevent brake lever damage
when the snowmobile is placed on its side
for service.
To release the parking brake, move the park-
ing brake lever to the right.
The brake lever is equipped with a position
adjuster.
To adjust the brake lever position:
1. Loosen the locknut.
2. While lightly pushing the brake lever in di-
rection (a), finger tighten the adjusting
bolt to set the brake lever to the desired
position.
EWS00060
WARNING
G Always set the parking brake before at-
tempting to start the engine.
G Never run the snowmobile with the park-
ing brake applied. This may overheat the
brake disc and reduce braking ability.
1. Locknut
2. Adjusting bolt
17
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Control functions
ESU13030
Shift lever (FX10 / FX10RTR /
FX10RTRA / FX10MTR /
FX10MTRA)
The shift lever is used to put the snowmobile
into forward or reverse. Before shifting, wait
for the snowmobile to come to a complete
stop with the engine idling. Pull the shift lever
out, slide it to “FWD” or to “REV” until it stops,
and then push it back in.
1. Pull out.
2. Slide to “REV” (reverse).
3. Push in.
ECS00070
CAUTION:
Do not shift from “FWD” to “REV” or from
“REV” to “FWD” while the snowmobile is
moving. Otherwise, the drive system
could be damaged.
ESU10720
1. Shift lever
Shroud and covers
Securely fasten the shroud and covers before
operating the snowmobile. (See page 43 for
removal and installation procedures.)
1. Pull out.
2. Slide to “FWD” (forward).
3. Push in.
1. Shroud
2. Right side cover
18
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Control functions
1. Left side cover
EWS00090
1. Drive guard
EWS00400
WARNING
WARNING
G Do not drive the snowmobile with the
shroud or covers unfastened or re-
moved.
G Make sure that the drive guard is tight-
ened securely before operating the
snowmobile.
G Keep your body and clothing away from
rotating parts when servicing the snow-
mobile with the shroud or covers re-
moved.
G Do not touch the hot muffler and engine
during or immediately after operation.
G Never run the engine with the V-belt or
drive guard removed.
ESU13040
Storage pouch
The storage pouch is located under the
shroud. Use the storage pouch to store the
tool kit, spare parts, such as the V-belt, or oth-
er small items.
ECS00370
CAUTION:
Make sure that all cables, leads, etc., are
routed properly before installing the
shroud and covers.
ESU10750
Drive guard
The drive guard is designed to cover the V-
belt clutch and V-belt in case parts break or
come loose.
1. Storage pouch
To remove the storage pouch
Unhook the swivel hook from the storage
pouch bracket, and then pull out the storage
pouch as shown.
19
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Control functions
1. Swivel hook
2. Storage pouch bracket
ESU10600
Fuel
Make sure that there is sufficient fuel in the
fuel tank.
EWS00070
WARNING
G Fuel is HIGHLY FLAMMABLE and poi-
sonous. Check the “SAFETY INFORMA-
TION” section carefully before refueling.
(See page 1.)
G Do not fill the fuel tank above the bottom
of the filler tube. Fuel could overflow if
the snowmobile is tilted or if the ambient
temperature rises, causing the fuel to
warm up and expand.
G Make sure that the fuel tank cap is
closed securely after refueling. Leaking
fuel can catch fire.
To install the storage pouch
Place the storage pouch in the original posi-
tion, and then hook the swivel hook onto the
bracket.
NOTE:
When installing the storage pouch, make sure
that the swivel hook is securely hooked onto
the bracket.
Storing the spare V-belt
Keep a spare V-belt for emergency use by
storing it in the storage pouch.
NOTE:
When storing a spare V-belt in the storage
pouch, be sure to secure it with the hook and
loop fastener.
20
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Control functions
G Do not use alcohol deicers or water ab-
sorbing additives with oxygenated fuel.
G The fuel tank should be filled with
straight gasoline as specified.
ESU10870
Suspension
The suspension can be adjusted to suit rider
preference. A softer setting, for example, may
provide greater rider comfort, while a harder
setting may allow more precise handling and
control over certain types of terrain or riding
1. Filler tube
2. Fuel level
conditions.
EWS00150
WARNING
Be sure to have a Yamaha dealer make this
adjustment.
This shock absorber contains highly pres-
surized nitrogen gas. It could explode by
improper handling, causing injury, or
property damage.
G Do not tamper with or attempt to open
the shock absorber.
G Do not subject the shock absorber to an
open flame or other high heat source,
which could cause it to explode.
G Do not deform or damage the shock ab-
sorber in any way.
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
28.0 L (7.40 US gal) (6.16 Imp.gal)
G Do not dispose of a worn or damaged
shock absorber by yourself. Take the
unit to a Yamaha dealer.
Your Yamaha engine has been designed to
use regular unleaded gasoline with a pump
octane number [(R+M)/2] of 86 or higher, or a
research octane number of 91 or higher.
ECS00080
ESU10900
Adjusting the ski spring preload (FX10 /
FX10MT / FX10MTR / FX10MTRA)
CAUTION:
ECS00250
G Oxygenated fuels (gasohol) containing
a maximum 5% of ethanol can be used,
although richer jetting may be required
to prevent engine damage. Consult a
Yamaha dealer. Gasohol containing
methanol is not recommended.
CAUTION:
The left and right ski spring preload must
be set to the same setting. Uneven set-
tings can cause poor handling and loss of
stability.
G Make sure that snow or ice does not en-
ter the fuel tank when refueling.
The spring preload can be adjusted by turning
the spring preload adjusting ring.
21
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Control functions
1. Spring preload adjusting ring
2. Spring seat length
1. Shock absorber pump
To adjust the air pressure
EWS00620
Spring preload setting (spring seat length
or spring preload adjusting ring position):
Minimum (soft):
WARNING
Support the snowmobile securely on a
suitable stand before adjusting the shock
absorbers.
FX10 141.6 mm (5.57 in)
FX10MT / FX10MTR / FX10MTRA
156.0 mm (6.14 in)
Standard:
ECS00710
FX10 141.6 mm (5.57 in)
FX10MT / FX10MTR / FX10MTRA
156.0 mm (6.14 in)
CAUTION:
Make sure that there is no load on the
shock absorbers and that they are fully ex-
tended before making any air pressure ad-
justments.
Maximum (hard):
FX10 151.6 mm (5.97 in)
FX10MT / FX10MTR / FX10MTRA
166.0 mm (6.54 in)
* The spring seat length changes ap-
proximately 1.5 mm (0.06 in) with each
full turn of the adjusting ring.
1. Place the snowmobile on a level surface
and apply the parking brake.
2. Lift the front of the snowmobile onto a
suitable stand to raise the skis off the
ground.
ESU12550
Adjusting the front shock absorber air
pressure (FX10RT / FX10RTR /
3. Remove the air valve cap from the shock
absorber.
FX10RTRA)
ECS00700
CAUTION:
The left and right shock absorber air pres-
sure must be set to the same setting. Un-
even settings can cause poor handling
and loss of stability.
This snowmobile is equipped with FOX shock
absorbers as standard equipment.
The air pressure of the shock absorbers can
be adjusted using the shock absorber pump
included with your snowmobile.
1. Air valve cap
22
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Control functions
4. Install the hose connector of the shock
absorber pump onto the air valve of the
shock absorber and tighten it approxi-
mately six turns until the pressure regis-
ters on the pump gauge.
1. Hose connector
ECS00720
CAUTION:
Do not overtighten the connector onto the
air valve as this will damage the connector
seal.
1. Bleed valve button
NOTE:
NOTE:
To allow pressure to escape from the pump
and the shock absorber, push the button half-
way down and hold it. To allow only a small
amount of pressure to escape, push the but-
ton all the way down and quickly release it.
If the shock absorber has no air pressure, the
gauge reading will be zero.
5. To increase the air pressure, operate the
pump a few times. The pressure should
increase slowly. If the pressure increases
rapidly, check to make sure that the
pump is properly connected and tight-
ened onto the air valve. To decrease the
air pressure, push the black bleed valve
button.
6. Remove the hose connector from the air
valve.
NOTE:
When removing the connector, the sound of
air escaping may be heard, but this is from the
pump hose, not the shock absorber.
Air pressure range:
345 kPa (3.4 kgf/cm², 50 psi) to 1,034
kPa (10.3 kgf/cm², 150 psi)
Recommended air pressure:
517 kPa (5.3 kgf/cm², 75 psi)
23
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Control functions
ECS00730
Compression damping setting:
Minimum (soft):
12 click(s) in direction (b)*
Standard:
6 click(s) in direction (b)*
Maximum (hard):
CAUTION:
Do not exceed 1,034 kPa (10.3 kgf/cm², 150
psi).
7. Install the air valve cap.
2 click(s) in direction (b)*
* With the adjusting knob fully turned in
direction (a)
NOTE:
If the front suspension bottoms too easily or
rolls too much during cornering, increase the
air pressure by 34 kPa (0.3 kgf/cm², 5 psi). If
the suspension is too firm and you want a
more compliant ride, decrease the air pres-
sure by 34 kPa (0.3 kgf/cm², 5 psi).
Rebound damping force
The rebound damping force of each ski shock
absorber can be adjusted by turning the re-
bound damping force adjusting knob.
To increase the rebound damping force, turn
the adjusting knob in direction (a). To de-
crease the rebound damping force, turn the
adjusting knob in direction (b).
ESU10921
Adjusting the ski damping force
(FX10)
ECS00260
CAUTION:
The damping forces for the left and right
ski shock absorbers must be adjusted to
the same settings. Uneven settings can
cause poor handling and loss of stability.
Compression damping force
The compression damping force of each ski
shock absorber can be adjusted by turning
the compression damping force adjusting
knob.
1. Rebound damping force adjusting knob
To increase the compression damping force,
turn the adjusting knob in direction (a). To de-
crease the compression damping force, turn
the adjusting knob in direction (b).
Rebound damping setting:
Minimum (soft):
20 click(s) in direction (b)*
Standard:
11 click(s) in direction (b)*
Maximum (hard):
3 click(s) in direction (b)*
* With the adjusting knob fully turned in
direction (a)
NOTE:
The damping forces will not decrease past the
minimum levels even if the adjusting knobs
are turned out more than the minimum set-
tings.
1. Compression damping force adjusting knob
24
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Control functions
ESU10930
Spring preload setting at the center shock
absorber (spring seat length or spring
preload adjusting ring position):
Minimum (soft):
FX10 98.6 mm (3.88 in)
FX10RT / FX10RTR / FX10RTRA
81.4 mm (3.20 in)
FX10MT / FX10MTR / FX10MTRA 1
Standard:
Adjusting the rear suspension spring
preload
The spring preload can be adjusted by turning
the spring preload adjusting ring on the center
shock absorber and the spring preload adjust-
er on the rear shock absorber.
FX10MT / FX10MTR / FX10MTRA
FX10 98.6 mm (3.88 in)
FX10RT / FX10RTR / FX10RTRA
81.4 mm (3.20 in)
FX10MT / FX10MTR / FX10MTRA 3
Maximum (hard):
FX10 108.6 mm (4.28 in)
FX10RT / FX10RTR / FX10RTRA
91.4 mm (3.60 in)
FX10MT / FX10MTR / FX10MTRA 5
* The spring seat length changes ap-
proximately 1.5 mm (0.06 in) with each
full turn of the adjusting ring.
1. Spring preload adjusting ring
FX10 / FX10RT / FX10RTR / FX10RTRA
1. Spring preload adjusting ring
2. Spring seat length
1. Spring preload adjuster
Spring preload setting at the rear shock
absorber (spring preload adjuster posi-
tion):
Minimum (soft):
S
Standard:
M
Maximum (hard):
H
25
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Control functions
ESU12751
Adjusting the rear suspension damp-
ing force (FX10 / FX10RT / FX10RTR /
FX10RTRA)
FX10
The compression damping force can be ad-
justed by turning the adjusting screw.
To increase the compression damping force,
turn the adjusting screw in direction (a). To
decrease the compression damping force,
turn the adjusting screw in direction (b).
1. Compression damping force adjusting
screw
Compression damping force setting (cen-
ter):
Minimum (soft):
12 click(s) in direction (b)*
Standard:
6 click(s) in direction (b)*
Maximum (hard):
2 click(s) in direction (b)*
* With the adjusting screw fully turned
lightly in direction (a)
1. Compression damping force adjusting
screw
Compression damping force setting:
Minimum (soft):
12 click(s) in direction (b)*
Standard:
6 click(s) in direction (b)*
Maximum (hard):
2 click(s) in direction (b)*
* With the adjusting screw fully turned
lightly in direction (a)
FX10RT / FX10RTR / FX10RTRA
1. Compression damping force adjusting
screw
The compression and rebound damping forc-
es can be adjusted by turning the adjusting
screw or dial.
Compression damping force setting
(rear):
To increase the compression damping force,
turn the adjusting screw in direction (a). To
decrease the compression damping force,
turn the adjusting screw in direction (b).
Minimum (soft):
12 click(s) in direction (b)*
Standard:
6 click(s) in direction (b)*
Maximum (hard):
2 click(s) in direction (b)*
* With the adjusting screw fully turned
lightly in direction (a)
26
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Control functions
To increase the rebound damping force, turn
the adjusting dial in direction (a). To decrease
the rebound damping force, turn the adjusting
dial in direction (b).
Rebound damping force setting (rear):
Minimum (soft):
20 click(s) in direction (b)*
Standard:
11 click(s) in direction (b)*
Maximum (hard):
3 click(s) in direction (b)*
* With the adjusting dial fully turned
lightly in direction (a)
ECS00790
CAUTION:
G Do not continue to turn the adjusting
screw or dial in direction (a) after it
stops. The shock absorber can be dam-
aged and damping force adjustments
cannot be made.
G Do not turn the adjusting screw or dial in
direction (b) beyond the adjustable
range. Even if the adjusting screw or dial
is continually turned beyond the adjust-
able range, there will be no change in the
damping force.
1. Rebound damping force adjusting dial
Rebound damping force setting (center):
Minimum (soft):
20 click(s) in direction (b)*
Standard:
11 click(s) in direction (b)*
Maximum (hard):
3 click(s) in direction (b)*
* With the adjusting dial fully turned
lightly in direction (a)
G Be sure to stop the adjusting screw or
dial at a position where there is a click.
ESU13010
Adjusting the control rods (FX10MT /
FX10MTR / FX10MTRA)
The weight transfer can be adjusted by turn-
ing the control rod adjusting nut.
1. Loosen the locknut while holding the con-
trol rod adjusting nut.
2. Turn the control rod adjusting nut in direc-
tion (a) to increase weight transfer or di-
rection (b) to decrease weight transfer.
1. Rebound damping force adjusting dial
27
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Control functions
3. Tighten the locknut while holding the con-
trol rod adjusting nut in place.
Locknut tightening torque:
25 Nm (2.5 m·kgf, 18 ft·lb)
ECS00800
CAUTION:
The left and right adjusting nuts must be
set to the same position. Uneven settings
can cause poor handling and loss of sta-
bility.
1. Locknut
2. Control rod adjusting nut
EWS00170
WARNING
Never adjust the control rods beyond the
maximum range indicated on the rods with
red paint.
1. Red paint area
2. Adjustable range
3. Standard position
28
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Pre-operation checks
ESU11070
The condition of a snowmobile is the owner’s responsibility. Vital components can start to de-
teriorate quickly and unexpectedly, even if the snowmobile remains unused (for example, as a
result of exposure to the elements). Any damage or fluid leakage could have serious conse-
quences. Therefore, it is very important, in addition to a thorough visual inspection, to check
the following points before each ride.
NOTE:
Pre-operation checks should be made each time the snowmobile is used. Such an inspection
can be accomplished in a very short time; and the added safety it assures is more than worth
the time involved.
EWS00190
WARNING
If any item in the pre-operation check list is not working properly, have it inspected and
repaired before operating the snowmobile.
ESU11080
Pre-operation check list
ITEM
CHECKS
PAGE
• Check fuel level.
• Refuel if necessary.
Fuel
20
• Check fuel line for leakage.
• Check oil level in engine.
• If necessary, add recommended oil to specified
level.
Engine oil
48
• Check vehicle for oil leakage.
• Check coolant level.
• Add if necessary.
Coolant
V-belt
52
54
• Check for wear and damage.
• Replace if necessary.
• Make sure that drive guard is tightened securely.
• Check the drive guard mounts for damage.
• Make sure that the drive guard is firmly in place.
Drive guard
19
58
46
• Check operation.
• If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in master cylinder.
• If necessary, add recommended brake fluid to
specified level.
Brake
• Check hydraulic system for leakage.
• Check that there is no snow under the air filter ele-
ment.
Air filter
• If necessary, brush off the snow.
29
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Pre-operation checks
ITEM
CHECKS
PAGE
Tool kit and recommended
equipment
• Check for proper placement.
43
• Make sure that the shroud and covers are securely
fastened.
Shroud and covers
18
60
61
61
• Check for wear and damage.
• If necessary, have Yamaha dealer replace skis or
ski runners.
Skis and ski runners
Drive track
• Check for deflection, wear and damage.
• If necessary, have Yamaha dealer replace track.
• Check for wear and damage.
• If necessary, have Yamaha dealer replace slide
runners.
Slide runners
Steering
• Check for excessive free play.
61
36
Strap (FX10MT / FX10MTR / • Check for damage.
FX10MTRA) • Replace if necessary.
Lights, signals and switch- • Check operation.
15, 15, 65, 66
9
es
• Correct if necessary.
• Make sure that operation is smooth and spring
back to its home position when released.
Throttle lever
• Check the T.O.R.S. for proper operation.
• If system is defective, have Yamaha dealer check
vehicle.
Throttle override system
(T.O.R.S.)
45
30
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Operation
ESU11300
EWS00200
Starting the engine
WARNING
G Be sure to check the “SAFETY INFOR-
MATION” section carefully before start-
ing the engine.
G Make sure that the parking brake is ap-
plied.
1. Start
ECS00330
CAUTION:
G Release the switch immediately after the
engine starts.
G If the engine fails to start, release the
switch, wait a few seconds, then try
again. Each attempt should be as short
as possible to preserve the battery. Do
not crank the engine more than 10 sec-
onds on any one attempt.
NOTE:
Make sure that the engine stop switch is in the
on position. The starter motor cannot be oper-
ated when the engine stop switch is in the off
position.
ESU11310
Break-in
There is never a more important period in the
life of your engine than the period between 0
and 500 km (300 mi). For this reason, you
should read the following material carefully.
Since the engine is brand new, do not put an
excessive load on it for the first 500 km (300
mi). The various parts in the engine wear and
polish themselves to the correct operating
clearances. During this period, prolonged full-
throttle operation or any condition that might
result in engine overheating must be avoided.
Operating your snowmobile for the
first time
Turn the main switch to the start position.
Warm up the engine until it does not run
roughly.
Start the engine and let it idle for 15 minutes.
0–160 km (0–100 mi)
Avoid prolonged operation above 6000 r/min.
160–500 km (100–300 mi)
Avoid prolonged operation above 8000 r/min.
31
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Operation
500 km (300 mi) and beyond
bile will be rewarded with added safety and a
The snowmobile can now be operated nor- more reliable snowmobile. Always wear the
mally.
proper clothing for both warmth and to help
protect you from injury if an accident occurs.
Become familiar with operating your snowmo-
bile at low speeds, even if you are an experi-
enced rider. Do not attempt to operate at
maximum performance until you are totally fa-
performance characteristics.
The beginning operator should select a large
flat area to become familiar with the snowmo-
bile. Make sure that this area is free of obsta-
cles and other traffic. You should practice
control of the throttle and brake, and master
turning techniques in this area before trying
more difficult terrain.
ECS00340
CAUTION:
G After 800 km (500 mi) of operation, the
engine oil must be changed and the oil
filter cartridge replaced.
G If any engine trouble should occur dur-
ing the engine break-in period, immedi-
ately have a Yamaha dealer check the
snowmobile.
ESU11331
Riding your snowmobile
Getting to know your snowmobile
A snowmobile is a rider active vehicle, and
your riding position and your balance are the
two basic factors of maneuvering your snow-
mobile.
Set the parking brake and follow the instruc-
tions on page 31 to start the engine. Once the
engine has warmed up, you are ready to be-
gin riding your snowmobile.
To start out and accelerate
1. With the engine idling, release the park-
Riding your snowmobile requires skills ac-
quired through practice over a period of time.
Take the time to learn the basic techniques
well before attempting more difficult maneu-
vers.
ing brake.
2. Apply the throttle slowly and smoothly.
The V-belt clutch will engage and you will
start to accelerate.
EWS00210
Riding your new snowmobile can be a very
enjoyable activity, providing you with hours of
pleasure. However, it is essential to familiar-
ize yourself with the operation of the snowmo-
bile to achieve the skill necessary to enjoy
riding safely. Before operating the snowmo-
bile, read this Owner’s Manual completely
and understand the operation of the controls.
Pay particular attention to the safety informa-
tion on page 1.
Please read all warning and caution labels on
your snowmobile. Also, read the Snowmobil-
er’s Safety Handbook that is supplied with
your snowmobile.
Learning to ride your snowmobile
Before you ride, always perform the pre-oper-
ation checks listed on page 29. The short time
spent checking the condition of the snowmo-
WARNING
The operator should always keep both
hands on the handlebar. Never put your
feet outside the running boards. Avoid
high speeds until you have become thor-
oughly familiar with your snowmobile and
all of its controls.
Braking
When slowing down or stopping, release the
throttle and apply the brake gently—not sud-
denly.
32
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Operation
EWS00220
If your snowmobile begins to tip while turning,
lean more into the turn to regain balance. If
necessary, gradually let off on the throttle or
steer to the outside of the turn.
WARNING
G Many surfaces such as ice and hard-
packed snow require much longer stop-
ping distances. Be alert, plan ahead, and
begin decelerating early.
G Improper use of the brake can cause the
drive track to lose traction, reduce con-
trol, and increase the possibility of an
accident.
Remember:
Avoid higher speeds until you are thoroughly
familiar with the operation of your snowmo-
bile.
Riding uphill
You should practice first on gentle slopes. Try
more difficult climbs only after you have de-
veloped your skill. As you approach a hill, ac-
celerate before you start the climb, and then
reduce the throttle to prevent track slippage. It
is also important to keep your weight on the
uphill side at all times. On climbs straight up
the hill, this can be accomplished by leaning
forward and, on steeper inclines, standing on
the running boards and leaning forward over
the handlebar. (Also see “Traversing a
slope”.)
Turning
For most snow surfaces, “body English” is the
key to turning.
As you approach a curve, slow down and be-
gin to turn the handlebar in the desired direc-
tion. As you do so, put your weight on the
running board to the inside of the turn and
lean your upper body into the turn.
This procedure should be practiced at low
speeds many times, in a large flat area with no
obstacles. Once you have learned this tech-
nique, you should be able to perform it at high-
er speeds or in tighter curves. Lean more as
the turn gets sharper or is made at higher
speeds.
Improper riding techniques such as abrupt
throttle changes, excessive braking, incorrect
body movements, or too much speed for the
sharpness of the turn may cause the snow-
mobile to tip.
Slow down as you reach the crest of the hill,
and be prepared to react to obstacles, sharp
drops, or other vehicles or people which may
be on the other side. If you are unable to con-
tinue up a hill, do not spin the track. Stop the
engine and set the parking brake. Then pull
the rear of the snowmobile around to point the
snowmobile back down the hill. When the
snowmobile is pointed downhill, mount your
33
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Operation
snowmobile from the uphill side. Restart the uphill side. A recommended riding position is
engine, release the parking brake, and de- to kneel with the knee of your downhill leg on
scend the hill.
the seat and the foot of your uphill leg on the
running board. This position will make it easi-
er for you to shift your body weight as needed.
EWS00230
WARNING
Side hills and steep slopes are not recom-
mended for a novice snowmobiler.
Riding downhill
When riding downhill, keep speed to a mini-
mum. It is important to apply just enough
throttle to keep the clutch engaged while de-
scending the hill. This will allow you to use en-
gine compression to help slow the
snowmobile, and to keep the snowmobile
from rolling freely down the hill. Also apply the
brake frequently, with light pressure.
Snow and ice are slippery, so be prepared for
the possibility that your snowmobile could be-
gin to slip sideways on the slope. If this hap-
pens, steer in the direction of the slide if there
are no obstacles in your path. As you regain
proper balance, gradually steer again in the
direction you wish to travel.
If your snowmobile starts to tip, steer down
the hill to regain balance.
EWS00260
WARNING
If you are unable to maintain correct bal-
ance, and your snowmobile is going to tip
over, dismount your snowmobile immedi-
ately on the uphill side.
EWS00240
WARNING
Use extra caution when applying the brake
during a descent. Excessive braking will
cause the drive track to lock, causing a
loss of control.
Ice or icy surface
Operating on ice or icy surfaces can be very
dangerous. Traction for turning, stopping, and
starting is much less than that on snow.
EWS00270
Traversing a slope
EWS00250
WARNING
Traversing slopes is not recommended for
a novice snowmobiler.
WARNING
When you have to operate on ice or icy
surfaces, drive slowly and cautiously.
Avoid accelerating, turning, and braking
rapidly. Steering is minimal and uncon-
trolled spins are an ever-present danger.
Traversing a slope requires you to properly
position your weight to maintain proper bal-
ance. As you travel across the slope, lean
your body to position your weight towards the
34
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Operation
G Always check the drive track for damage
or maladjustment before operating the
snowmobile.
Hard-packed snow
It can be more difficult to negotiate on hard-
packed snow as both the skis and drive track
do not have as much traction as when the G Do not operate the snowmobile if you
snowmobile is operated on fresh snow. Avoid
rapid acceleration, turning, and braking.
Operation on surfaces other than
snow or ice
Operation of your snowmobile on surfaces
other than snow or ice should be avoided. Op-
eration under such conditions will damage or
result in rapid wear of the ski runners, drive
track, slide runners, and drive sprockets. Op-
eration of the snowmobile on the following
surfaces should be avoided at all times:
G Dirt
G Sand
G Rocks
G Grass
G Bare pavement
Other surfaces that should be avoided for the
sake of drive track and slide runner life are:
G Glare ice surfaces
G Snow mixed with a lot of dirt and sand
All of the above surfaces have one thing in
common in regard to drive track and slide run-
ners: little or no lubricating ability. Drive track
and all slide rail systems require lubrication
(snow or water) between the slide runners
and the slide metal. In the absence of lubrica-
tion, the slide runners will rapidly wear and in
severe cases, literally melt away, and the
drive track will be subject to damage or failure.
Also traction aids such as studs, cleats, etc.,
find damage to the drive track.
ECS00350
CAUTION:
Ride on fresh snow frequently. Operating
on ice or hard-packed snow will rapidly
wear the slide runners.
ESU11M350 aximizing drive track life
Recommendations
Track tension
During initial break-in, the new drive track will
tend to stretch quickly as the track settles. Be
sure to correct the track tension and align-
ment frequently. (See page 61 for adjustment
procedures.) A loose track can slip (ratchet),
derail or catch on suspension parts causing
severe damage. Do not overtighten the drive
track, otherwise it may increase the friction
between the track and the slide runners, re-
sulting in the rapid wear of both components.
Also, this may put an excessive load on the
suspension components, resulting in compo-
nent failure.
Marginal snow
The drive track and the slide runners are lubri-
cated and cooled by snow and water. To pre-
vent the drive track and slide runners from
overheating, avoid sustained high-speed us-
age in areas such as icy trails, frozen lakes
and rivers that have minimal snow coverage.
An overheated track will be weakened inter-
nally, which may cause failure or damage.
may cause further track damage or failure.
EWS00280
WARNING
Off-trail riding
Drive track damage or failure could result
in loss of braking ability and snowmobile
control, which could cause an accident.
Avoid off-trail riding until there is sufficient
snow coverage. It generally takes several feet
of snow to provide a good overall base to
properly cover debris, such as rocks, logs,
35
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Operation
etc. If snow coverage is not sufficient, stay on
trails to avoid impact damage to the drive
track.
(side-hill) riding. Only experienced oper-
ators should traverse slopes steep
enough to require strap use.
G Keep the right hand on the right handle-
bar grip for steering, and grip the strap
with the left hand to shift weight uphill
for balance during traverse riding.
Studded track
In general, track life will be shortened when
studs are installed. Drilling stud holes into the
drive track will cut the internal fibers, which
weakens the track. Avoid spinning the drive G Ride cautiously while using the strap.
track. Studs may catch on an object and pull
out of the track, leaving tears and damage
Do not accelerate or decelerate abruptly
while holding onto the strap.
around the already weakened area. To mini- G Do not use the strap to lift the snowmo-
mize possible damage, consult your stud bile.
manufacturer for installation and stud pattern G Do not use the strap as a mounting point
recommendations.
for cargo or accessories.
Yamaha does not recommend track stud-
ESU13020
ding.
ESU11360
Driving
EWS00300
Strap (FX10MT / FX10MTR /
WARNING
FX10MTRA)
The strap should be used only by experienced
operators to assist them when traverse (side-
hill) riding.
Be sure to read the “SAFETY INFORMA-
TION” section on page 1 and the “Riding
your snowmobile” section on page 32
carefully before operating the snowmo-
bile.
NOTE:
Make sure that the engine is warmed up
enough before riding.
FX10RT / FX10MT
1. Release the parking brake by moving the
parking brake lever to the right.
1. Strap
EWS00290
WARNING
Improper use of the strap on the handlebar
can result in severe injury or death.
G Use the strap only as an operator grip
point when needed to shift weight uphill
to maintain balance during traverse
36
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Operation
2. Press the throttle lever slowly to move the
snowmobile.
3. Turn the handlebar in the desired direc-
tion.
4. Squeeze the brake lever to stop the
snowmobile.
5. Apply the parking brake by moving the
parking brake lever to the left.
FX10 / FX10RTR / FX10RTRA /
FX10MTR / FX10MTRA
1. Pull out.
EWS00310
2. Slide to “REV” (reverse).
3. Push in.
WARNING
G Make sure that the throttle lever is fully
released and the snowmobile is at a full
stop before shifting.
ECS00070
CAUTION:
Do not shift from “FWD” to “REV” or from
“REV” to “FWD” while the snowmobile is
moving. Otherwise, the drive system
could be damaged.
G Be sure to slide the shift lever to “FWD”
or “REV” until it stops completely and
only while the engine is idling.
G Make sure that the area behind the
snowmobile is clear before reversing.
Watch behind.
G Reduce speed and avoid sharp turning
when operating the snowmobile in re-
verse.
NOTE:
The reverse buzzer beeps while the shift lever
is in reverse.
2. Release the parking brake by moving the
parking brake lever to the right.
1. To select the desired operating position,
pull the shift lever out, slide it to “FWD” or
to “REV” until it stops, and then push it
back in.
3. Press the throttle lever slowly to move the
snowmobile.
4. Turn the handlebar in the desired direc-
1. Pull out.
2. Slide to “FWD” (forward).
3. Push in.
tion.
5. Squeeze the brake lever to stop the
snowmobile.
37
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Operation
6. Apply the parking brake by moving the G If transporting the snowmobile in an open
parking brake lever to the left.
trailer or truck, put a tight fitting cover on the
snowmobile. A cover specifically designed
for your snowmobile is best. This will help
keep foreign objects out of the cooling
vents, and also help protect the snowmo-
bile against damage from debris on the
road.
ESU11410
Stopping the engine
Turn the main switch to the off position to stop
the engine.
G If transporting the snowmobile in an open
trailer or truck in areas where road salt is
used, coat metal suspension surfaces light-
ly with oil or another protectant. This will
help protect against corrosion. Be sure to
clean the snowmobile when you get to your
destination to remove any corrosive salts.
1. Off
EWS00330
WARNING
G Push down the engine stop switch to
stop the engine in an emergency.
G Make sure that the key is removed from
the main switch whenever the operator
leaves the snowmobile, to prevent acci-
dental starting.
ESU11430
Transporting
When transporting your snowmobile on a trail-
er or in a truck, observe the following recom-
mendations to help protect it from damage:
38
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Periodic maintenance
ESU11450
Safety is an obligation of the owner. Periodic inspection, adjustment, and lubrication will keep
your snowmobile in the safest and most efficient condition possible. The most important points
of snowmobile inspection, adjustment, and lubrication are explained on the following pages.
Maintenance, replacement, or repair of the emission control devices and systems may
be performed by any repair establishment or individual that is certified (if applicable).
EWS00340
WARNING
If you are not familiar with maintenance work, have a Yamaha dealer do it for you.
PROPER PERIODIC MAINTENANCE OF YOUR SNOWMOBILE IS IMPORTANT IN ORDER
TO ENJOY LONG, PLEASURABLE SERVICE. ESPECIALLY IMPORTANT ARE THE MAIN-
TENANCE SERVICES RELATED TO EMISSION CONTROL. THESE CONTROLS NOT
ONLY FUNCTION TO ENSURE CLEANER AIR, BUT ARE ALSO VITAL TO PROPER EN-
GINE OPERATION AND MAXIMUM PERFORMANCE. IN THE FOLLOWING PERIODIC
MAINTENANCE CHARTS, THE SERVICES RELATED TO EMISSION CONTROL ARE
GROUPED SEPARATELY. THESE SERVICES REQUIRE SPECIALIZED DATA, KNOWL-
EDGE, AND EQUIPMENT. YAMAHA DEALERS ARE TRAINED AND EQUIPPED TO PER-
FORM THESE PARTICULAR SERVICES.
ESU11460
Periodic maintenance chart for the emission control system
INITIAL
EVERY
Seasonally
or
4000 km
(2500 mi)
(200 hr)
1 month
or 800 km
(500 mi)
(40 hr)
ITEM
REMARKS
PAGE
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
Spark plugs
44
48
—
• Check and adjust valve clear-
ance when engine is cold.
Every 40000 km (25000
mi)
*
*
Valve clearance
• Check breather hose for cracks
or damage.
• Replace if necessary.
Crankcase breather
system
• Check condition.
• Replace fuel pump assembly if
necessary.
*
Fuel filter
—
• Check fuel hose for cracks or
damage.
• Replace if necessary.
*
*
Fuel line
—
—
• Check synchronization.
• Adjust if necessary.
Fuel injection
39
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Periodic maintenance
INITIAL
EVERY
Seasonally
or
4000 km
(2500 mi)
(200 hr)
1 month
or 800 km
(500 mi)
(40 hr)
ITEM
REMARKS
PAGE
• Check for leakage.
• Tighten or replace gasket if
necessary.
*
Exhaust system
—
* It is recommended that these items be serviced by a Yamaha dealer.
40
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Periodic maintenance
ESU11560
General maintenance and lubrication chart
INITIAL
EVERY
Seasonally
or
4000 km
(2500 mi)
(200 hr)
1 month
or 800 km
(500 mi)
(40 hr)
ITEM
REMARKS
PAGE
• Change (warm engine before
draining)
Engine oil
48
48
Every
20000 km
(12000 mi)
Engine oil filter car-
tridge
*
*
• Replace.
• Check coolant level.
• Air bleed the cooling system if
necessary.
Cooling system
52
—
—
• Check engagement and shift
speed.
• Adjust if necessary.
Whenever operating ele-
vation is changed.
• Inspect sheaves for wear and
damage.
• Inspect weights/rollers and
bushings for wear for primary.
• Inspect ramp shoes/bushings
for wear for secondary.
• Replace if necessary.
Primary and sec-
ondary clutches
*
—
• Lubricate with specified
grease.
—
Initial at 500 km (300 mi)
and every 800 km (500
mi) thereafter.
• Check chain slack.
• Adjust if necessary.
*
*
Drive chain
57
• Check oil level.
• Change.
57
57
Drive chain oil
• Adjust free play and/or replace
pads if necessary.
58
58
Brake and parking
brake
*
See NOTE following this
chart.
• Change brake fluid.
• Make sure that operation is
smooth.
Control cables
64
• Lubricate if necessary.
• Check for slight free play.
• Lubricate shaft with specified
grease as required.
Disc brake installa-
tion
Every 1600 km (1000
mi)
*
—
• Check for wear and damage.
• Replace if necessary.
*
*
Slide runners
61
60
Skis and ski run-
ners
• Check for wear and damage.
• Replace if necessary.
41
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Periodic maintenance
INITIAL
EVERY
Seasonally
or
4000 km
(2500 mi)
(200 hr)
1 month
or 800 km
(500 mi)
(40 hr)
ITEM
REMARKS
PAGE
• Check toe-out.
• Adjust if necessary.
*
*
Steering system
Steering bearings
61
• Check bearing assemblies for
looseness.
• Lubricate with specified
grease.
—
Ski and front sus-
pension
• Lubricate with specified
grease.
*
*
64
64
Suspension compo- • Lubricate with specified
nent
grease.
• Make sure that all nuts, bolts
and screws are properly tight-
ened.
Fittings and fasten-
ers
66
66
• Tighten if necessary.
• Check condition.
• Charge if necessary.
*
Battery
* It is recommended that these items be serviced by a Yamaha dealer.
NOTE:
Brake system:
G After disassembling the master cylinder or caliper cylinder, always change the brake fluid.
Regularly check the brake fluid level and add fluid if necessary.
G Replace the oil seals of the master cylinder and caliper cylinder every two years.
G Replace the brake hose every four years, or if cracked or damaged.
42
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Periodic maintenance
ESU12770
Tool kit
The owner’s tool kit has the tools which are
sufficient for most periodic maintenance and
minor repairs. A torque wrench is also neces-
sary to properly tighten nuts and bolts.
1. Fastener
1. Tool kit
ECS00760
CAUTION:
Before starting the engine, make sure that
the storage pouch zipper is closed com-
pletely.
1. Shroud
To install the shroud
NOTE:
Hook the end of the shroud onto the front cov-
er, insert the projections on the shroud into
the slots in the headlight stay, and then tight-
en the fasteners.
If you do not have a torque wrench available
during a service operation requiring one, take
your snowmobile to a Yamaha dealer to
check the torque settings and adjust them if
necessary.
ESUR127e80 moving and installing the
shroud and covers
Shroud
To remove the shroud
Loosen the fasteners, and then slide the
shroud forward.
Left and right side covers
To remove a side cover
1. Remove the shroud. (See above for re-
moval procedures.)
43
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Periodic maintenance
2. Loosen the fasteners, and then remove G Keep your body and clothing away from
the side cover.
rotating parts when servicing the snow-
mobile with the shroud or covers re-
moved.
G Do not touch the hot muffler and engine
during or immediately after operation.
ECS00370
CAUTION:
Make sure that all cables, leads, etc., are
routed properly before installing the
shroud and covers.
1. Right side cover
2. Fastener
NOTE:
When installing the shroud and covers, be
sure to tighten the fasteners securely.
ESU11780
Checking the spark plugs
The spark plug is an important engine compo-
nent and is easy to inspect. The condition of
the spark plug can indicate the condition of
the engine.
Check the coloration on the white porcelain
insulator around the center electrode. The
ideal coloration at this point is a medium to a
light tan color for a snowmobile that is being
ridden normally. If a spark plug shows a dis-
tinctly different color, there could be some-
thing wrong with the engine. For example, a
very white center electrode porcelain color
could indicate an intake track air leak or car-
buretion problem for that cylinder. Do not at-
tempt to diagnose such problems yourself.
Instead, take the snowmobile to a Yamaha
dealer for inspection and possible repairs.
You should periodically remove and inspect
the spark plug because heat and deposits will
cause a spark plug to slowly break down and
erode. Consult a Yamaha dealer before
changing to a different type of spark plug.
1. Left side cover
2. Fastener
To install a side cover
1. Place the side cover in the original posi-
tion, and then tighten the fasteners.
NOTE:
Be sure to insert the projection on the rear of
the side cover into the hole in the fuel tank
side cover and insert the projections on the
front of the cover into the slots in the lower
cover.
2. Install the shroud.
EWS00090
WARNING
G Do not drive the snowmobile with the
shroud or covers unfastened or re-
moved.
44
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Periodic maintenance
When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.
Specified spark plug:
Manufacturer:
NGK
Model:
CR9E
Spark plug tightening torque:
12.5 Nm (1.25 m·kgf, 9 ft·lb)
Spark plugs are produced in several different
thread lengths. The thread length or reach is
the distance from the spark plug gasket seat
to the end of the threaded portion. If the reach
is too long, overheating and engine damage
may result. If the reach is too short, spark plug
fouling and poor performance may result. Al-
so, if the reach is too short, carbon will form on
the exposed threads resulting in combustion
chamber hot spots and thread damage. Al-
ways use a spark plug with the specified
reach.
ECS00380
CAUTION:
Make sure that the spark plug caps are se-
curely installed. Otherwise the spark plug
caps could be damaged due to engine vi-
bration.
ESU12791
Adjusting the throttle cable free
play
1. Loosen the locknut.
2. Turn the adjusting bolt in or out until the
specified throttle cable free play is ob-
tained.
Spark plug reach:
19.0 mm (0.75 in)
1. Locknut
1. Spark plug gap
2. Throttle cable free play adjusting bolt
3. Throttle cable free play
2. Spark plug reach
Before installing any spark plug, measure the
electrode gap with a wire thickness gauge
and adjust to specification.
Throttle cable free play:
3.0–4.0 mm (0.12–0.16 in)
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
3. Tighten the locknut.
ESU11861
Checking the throttle override
system (T.O.R.S.)
Check the T.O.R.S. for proper operation.
45
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Periodic maintenance
EWS00351
WARNING
When checking the T.O.R.S.:
G Make sure that the parking brake is ap-
plied.
G Make sure that the throttle lever moves
smoothly.
G Do not rev the engine to the point that
the clutch engages, otherwise the snow-
mobile could start moving, which could
cause an accident.
1. Throttle lever pivot
2. Engine stop switch housing
3. Throttle lever
1. Start the engine.
NOTE:
The T.O.R.S. will be activated and the
engine speed will be limited to less than
the clutch engagement speed. (See page
Refer to the “Starting the engine” section on
page 31.
2. Hold the pivot point of the throttle lever
away from the throttle switch by putting
your thumb (above) and forefinger (be-
low) between the throttle lever pivot and
the engine stop switch housing.
74 for the clutch engagement speed.)
EWS00361
WARNING
If the engine speed does not decrease to
less than the clutch engagement speed,
stop the engine by turning the main switch
to the off position and consult a Yamaha
dealer.
While holding the pivot point as described
above, press the throttle lever gradually.
ESU12801
Checking the air filter
Always check that there is no snow under the
air filter element frame.
1. Remove the shroud, the left side cover,
and the right side cover. (See page 43 for
removal procedures.)
46
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Periodic maintenance
2. Remove the headlight unit stay quick fas- 5. Lift up the air filter element frame and
teners and disconnect the air tempera-
ture sensor coupler.
check the air filter element. If there is any
snow on the air filter element, remove the
element, brush off the snow, and then in-
stall the air filter element.
1. Quick fastener
2. Air temperature sensor coupler
3. Unhook the air filter case cover fasteners.
6. Place the air filter element frame in the
original position, and then install the air
filter case cover.
7. Hook the fasteners onto the air filter case
cover.
8. Connect the air temperature sensor cou-
pler and install the headlight unit stay
quick fasteners.
1. Air filter case cover fastener
4. Lift the headlight unit and headlight unit
stay, and then slide the air filter case cov-
er toward the right side of the snowmobile
and remove it.
9. Install the right side cover, the left side
cover, and the shroud.
NOTE:
After riding the snowmobile, make sure that
there is no snow under the air filter element
frame.
1. Air filter case cover
47
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Periodic maintenance
ESU11930
ESU12810
High-altitude settings
Engine oil and oil filter cartridge
Operating at high altitude reduces the perfor- The engine oil level should be checked before
mance of a gasoline engine about 3% for ev- each use. In addition, the oil must be changed
ery 305 m (1000 ft) of elevation. This is and the oil filter cartridge replaced at the inter-
because there is less air as altitude increases. vals specified in the periodic maintenance
Less air means less oxygen available for and lubrication chart.
EWS00370
combustion.
WARNING
Your snowmobile utilizes an electronic fuel in-
jection system that delivers the optimal air/fu-
el ratio required by the engine. Therefore, the
fuel injection system does not need to be ad-
justed, even for operation at high altitude.
Remember:
Engine oil is extremely hot immediately af-
ter the engine is turned off. Coming into
contact with or getting any engine oil on
your clothes could result in burns.
ECS00480
Less air at higher altitude means there is less
horsepower available, even with the optimal
air/fuel ratio. Expect acceleration and top
speed to be reduced at higher altitudes.
To overcome operating with less power at
high altitudes, your snowmobile may also re-
quire different settings for the drive chain
gears and V-belt clutch to avoid poor perfor-
mance and rapid wear. If you plan to operate
your snowmobile at an altitude different from
the area where you bought it, be sure to con-
sult a Yamaha dealer. The dealer can tell you
if there are any changes necessary for the al-
CAUTION:
G Do not run the engine with too much or
not enough oil in the oil tank. Oil could
spray out or the engine could be dam-
aged.
G Be sure to change the engine oil after
the first 800 km (500 mi) of operation,
and every 4000 km (2500 mi) thereafter
or at the start of a new season, other-
wise the engine will wear quickly.
G The oil filter cartridge should be re-
placed every 20000 km (12000 mi) of op-
eration.
titude where you plan to ride.
ECS00430
To check the engine oil level
1. Place the snowmobile on a level surface
and apply the parking brake.
CAUTION:
The drive chain gears and V-belt clutch
should be adjusted when operating above
a high altitude of 900 m (3000 ft). Consult a
Yamaha dealer.
ESU11950
Valve clearance
The valve clearance changes with use, result-
ing in improper air-fuel mixture and/or engine
noise. To prevent this from occurring, the
valve clearance must be adjusted by a
Yamaha dealer at the intervals specified in
the periodic maintenance chart.
48
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Periodic maintenance
2. Start the engine, warm it up for 10–15
minutes, and then turn it off.
NOTE:
G The engine can also be warmed up by op-
erating the snowmobile for 10–15 minutes.
G After operating the snowmobile, allow the
engine to idle for at least 10 seconds before
turning it off.
3. Remove the shroud and the right side
cover. (See page 43 for removal proce-
dures.)
1. Oil filler cap
2. Dipstick
4. Disconnect the oil level gauge coupler.
NOTE:
The engine oil should be between the “H” and
“L” level marks on the dipstick.
1. Oil level gauge coupler
2. Oil filler cap
ECS00451
1. “H” level mark
2. “L” level mark
CAUTION:
Disconnect the oil level gauge coupler be-
fore removing the oil filler cap, otherwise 6. If the engine oil is below the “L” level
the cable could twist and break.
mark, add sufficient oil of the recom-
mended type to raise it to the “H” level
mark. (See page 74 for the recommend-
ed oil.)
5. Remove the oil filler cap, wipe the dipstick
clean, insert it back into the oil filler hole
(without screwing it in), and then remove
it again to check the oil level.
ECS00461
CAUTION:
G When adding the engine oil, be careful
not to fill above the “H” level mark on the
dipstick.
G Use only 4-stroke engine oil.
G Make sure that no foreign material en-
ters the engine oil tank.
49
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Periodic maintenance
7. Insert the dipstick into the oil filler hole,
and then tighten the oil filler cap.
8. Connect the oil level gauge coupler.
9. Install the right side cover and the shroud.
To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Place the snowmobile on a level surface
and apply the parking brake.
2. Start the engine, warm it up for several
minutes, and then turn it off.
3. Remove the shroud, the left side cover,
and the right side cover. (See page 43 for
removal procedures.)
1. Bottom panel
2. Quick fastener
5. Place an oil pan under the oil tank to col-
lect the used oil.
6. Disconnect the oil level gauge coupler.
4. Remove the left lower cover, the right
lower cover, and the bottom panel.
1. Oil level gauge coupler
2. Oil filler cap
1. Left lower cover
2. Quick fastener
3. Bolt
7. Remove the oil filler cap, cylinder head
cap, and drain bolt to drain the oil from
the oil tank.
1. Right lower cover
2. Quick fastener
3. Bolt
1. Cylinder head cap
50
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Periodic maintenance
1. Oil filter cartridge
1. Engine oil drain bolt (oil tank)
8. Place an oil pan under the engine to col-
lect the used oil.
9. Remove the engine oil drain bolt to drain
the oil from the crankcase.
NOTE:
An oil filter wrench is available at a Yamaha
dealer.
11. Apply a thin coat of engine oil to the O-
ring of the new oil filter cartridge.
12. Install the new oil filter cartridge with an
oil filter wrench, and then tighten it to the
specified torque.
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lb)
13. Install the engine oil drain bolts, and then
tighten them to the specified torques.
1. Engine oil drain bolt (crankcase)
2. “
” mark
Tightening torques:
Engine oil drain bolt (crankcase):
10 Nm (1.0 m·kgf, 7.2 ft·lb)
Engine oil drain bolt (oil tank):
16 Nm (1.6 m·kgf, 11 ft·lb)
NOTE:
G A “
” mark is stamped on the crankcase
near the engine oil drain bolt.
G Dispose of used oil according to local regu-
lations.
G Skip steps 10–12 if the oil filter cartridge is
not being replaced.
14. Add 2.0 L (2.1 US qt) (1.8 Imp.qt) of the
recommended engine oil to the oil tank,
and then install and tighten the oil filler
cap and the cylinder head cap.
10. Remove the oil filter cartridge with an oil
filter wrench.
51
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Periodic maintenance
ECS00470
Recommended engine oil:
See page 74.
Oil quantity:
With oil filter cartridge replacement:
3.2 L (3.38 US qt) (2.82 Imp.qt)
Without oil filter cartridge replacement:
3.0 L (3.17 US qt) (2.64 Imp.qt)
Total amount:
CAUTION:
If oil is leaking or the oil level warning indi-
cator comes on when the engine is run-
ning, immediately turn the engine off and
have a Yamaha dealer check the snowmo-
bile. Continuing to operate the engine un-
der such conditions could cause severe
engine damage.
3.9 L (4.12 US qt) (3.43 Imp.qt)
15. Start the engine, warm it up for several
minutes, and then turn it off.
16. Add sufficient oil of the recommended
type to raise it to the “H” level mark on the
dipstick. (See above for the checking pro-
cedure.)
19. Install the bottom panel, the right lower
cover, and the left lower cover.
20. Install the right side cover, the left side
cover, and the shroud.
ESU12820
Cooling system
The coolant level should be checked before
each ride. In addition, the cooling system
must be bled of air at the intervals specified in
the periodic maintenance and lubrication
chart.
EWS00390
WARNING
Do not remove the radiator cap when the
engine is hot. Scalding hot fluid and steam
may be blown out under pressure, which
could cause serious injury.
When the engine has cooled, place a thick
rag or towel over the radiator cap, and
slowly rotate the cap counterclockwise to
the detent. This procedure allows any re-
sidual pressure to escape. When the hiss-
ing sound has stopped, press down on the
cap while turning counterclockwise and
remove it.
ECS00461
CAUTION:
G When adding the engine oil, be careful
not to fill above the “H” level mark on the
dipstick.
G Use only 4-stroke engine oil.
G Make sure that no foreign material en-
ters the engine oil tank.
17. Start the engine, and then let it idle for
several minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and make sure that the en-
gine oil drain bolt, oil tank drain bolt, cyl-
inder head cap, and the oil filler cap are
installed correctly.
18. Turn the engine off, and then connect the
oil level gauge coupler.
52
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Periodic maintenance
Bleeding the cooling system
The cooling system must be bled of air if the
coolant reservoir becomes empty, if air can be
seen in the cooling system, or if there is a
cooling system leak. Consult a Yamaha deal-
er.
ECS00500
CAUTION:
Operating the engine with an improperly
bled cooling system can cause overheat-
ing and severe engine damage.
1. Radiator cap
To check the coolant level
Replenishing the coolant
1. Remove the shroud. (See page 43 for re-
moval procedures.)
2. Remove the coolant reservoir cap and
add coolant until it reaches the “FULL”
mark.
Check the coolant level in the coolant reser-
voir when the engine is cold. If the coolant lev-
el is below the “LOW” mark, add coolant until
it reaches the “FULL” mark. (See the following
section “Replenishing the coolant” for more
details.)
1. Coolant reservoir cap
1. “FULL” mark
2. “LOW” mark
ECS00490
CAUTION:
G Hard water or salt water is harmful to the
engine parts. You may use boiled or dis-
tilled water, if soft water is not available.
G Tap water can be used temporarily in an
emergency.
53
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Periodic maintenance
ESU12060
EWS00400
V-belt
WARNING
ened securely before operating the
snowmobile.
G Never run the engine with the V-belt or
drive guard removed.
The V-belt should be checked before each
ride.
1. “FULL” mark
To check the V-belt
Recommended antifreeze:
High-quality ethylene glycol antifreeze
containing corrosion inhibitors
Antifreeze and water mixing ratio:
3:2
1. Remove the shroud and the left side cov-
er, and then remove the drive guard.
(See page 43 for removal procedures.)
2. Check the V-belt for wear and damage.
Replace if necessary.
Total amount:
FX10 3.40 L (3.59 US qt) (2.99 Imp.qt)
FX10MT 4.70 L (4.97 US qt) (4.14
Imp.qt)
FX10MTR 4.70 L (4.97 US qt) (4.14
Imp.qt)
FX10MTRA 4.70 L (4.97 US qt) (4.14
Imp.qt)
FX10RT 3.40 L (3.59 US qt) (2.99
Imp.qt)
FX10RTR 3.40 L (3.59 US qt) (2.99
Imp.qt)
FX10RTRA 3.40 L (3.59 US qt) (2.99
Imp.qt)
1. V-belt wear limit
3. Start the engine and add coolant until the
coolant level does not go down, and then
stop the engine.
4. Fill the coolant reservoir with coolant until
it reaches the “FULL” mark.
5. Install the coolant reservoir cap.
6. Check for any coolant leakage.
7. Install the shroud.
New V-belt width:
34.1 mm (1.34 in)
V-belt wear limit width:
32.5 mm (1.28 in)
3. Install the drive guard, and then install the
left side cover and the shroud.
To replace and adjust the V-belt
EWS00410
WARNING
G Never run the engine with the V-belt or
drive guard removed.
NOTE:
If you find any leaks, consult a Yamaha deal-
er.
54
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Periodic maintenance
G When installing the new V-belt, make Have a Yamaha dealer make this adjust-
sure that it is positioned properly. Other- ment.
wise, the V-belt clutch engagement
speed will be changed and the snowmo-
bile may move unexpectedly when the
engine is started, which could cause an
accident.
G Have a Yamaha dealer make this adjust-
ment.
NOTE:
Apply the parking brake before replacing the
V-belt.
1. Remove the shroud and the left side cov-
er, and then remove the drive guard.
(See page 43 for removal procedures.)
2. Rotate the secondary sliding sheave
clockwise and push it so that it separates
from the secondary fixed sheave.
1. Secondary sliding sheave
2. Secondary fixed sheave
3. Pull the V-belt up over the secondary
fixed sheave.
1. Edge of the secondary sheave assembly
2. Spacer
ECS00510
CAUTION:
As the V-belt wears, adjustment may be
necessary. To ensure proper clutch per-
formance, the V-belt position should be
1. V-belt
adjusted by adding a spacer on each ad- 4. Remove the V-belt from the secondary
justing bolt when the V-belt position
reaches 1.5 mm (0.06 in) below the edge of
the secondary sheave assembly.
sheave assembly and primary sheave
assembly.
55
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Periodic maintenance
5. Temporarily install the new V-belt on the
secondary sheave assembly only, and
then measure the V-belt position. Do not
force the V-belt between the sheaves; the
secondary sliding and fixed sheaves
must touch each other.
1. V-belt position adjusting bolt
2. Spacer
V-belt position
Adjustment
Remove spacer
More than 1.5 mm
(0.06 in) above the
edge
1. Edge of the secondary sheave assembly
2. V-belt position
From 1.5 mm (0.06 in)
above the edge to 0.5 Not necessary (It is
Standard V-belt position:
mm (0.02 in) below
the edge
correct.)
From 1.5 mm (0.06 in) above the edge
of the secondary sheave assembly to
0.5 mm (0.02 in) below the edge.
More than 0.5 mm
(0.02 in) below the
edge
Add spacer
6. If the V-belt position is incorrect, adjust it
by removing or adding a spacer on each
V-belt position adjusting bolt.
7. Tighten the V-belt position adjusting
bolts.
V-belt position adjusting bolt tightening
torque:
10 Nm (1.0 m·kgf, 7.2 ft·lb)
8. Install the V-belt over the primary sheave
assembly.
56
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Periodic maintenance
9. Rotate the secondary sliding sheave 2. Remove the shroud and the right side
clockwise and push it so that it separates
from the secondary fixed sheave.
cover. (See page 43 for removal proce-
dures.)
3. Remove the dipstick, wipe it off with a
clean rag, and then screw it back into the
filler hole.
1. Secondary sliding sheave
2. Secondary fixed sheave
10. Install the V-belt between the secondary
sliding and fixed sheaves.
1. Dipstick
4. Remove the dipstick and check that the
oil level is within the range shown at the
bottom of the dipstick. If the oil does not
reach the bottom of the dipstick, add suf-
ficient oil of the recommended type to
raise it to the correct level.
1. V-belt
11. Install the drive guard, and then install the
left side cover and the shroud.
ESU12830
Drive chain housing
EWS00430
WARNING
1. Oil level range (FX10RT / FX10MT)
The engine, oil tank, brake disc, and cool-
ant hoses will be very hot after the engine
has been run. Avoid contact while they are
still hot with any part of your body or cloth-
ing during inspection or repair.
2. Oil level range (FX10 / FX10RTR /
FX10RTRA / FX10MTR / FX10MTRA)
To check the drive chain housing oil level
1. Place the snowmobile on a level surface.
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Periodic maintenance
ESU12130
Brake and parking brake
EWS00440
WARNING
G A soft, spongy feeling in the brake lever
indicates a failure in the brake system.
G Do not operate the snowmobile if you
find any problems in the brake system.
You could lose braking ability, which
could lead to an accident. Ask a Yamaha
dealer to inspect and repair the brake
system.
Recommended drive chain oil:
SAE 75W or 80W API GL-4 Gear oil
ECS00060
ECS00530
CAUTION:
CAUTION:
Make sure that the brake lever end does
not project out over the handlebar end.
This will help prevent brake lever damage
when the snowmobile is placed on its side
for service.
Make sure that no foreign material enters
the drive chain housing.
5. Install the dipstick.
6. Install the right side cover and the shroud.
To adjust the chain tension
1. Remove the shroud and the right side
cover. (See page 43 for removal proce-
dures.)
Test the brake at a low speed when starting
out to make sure that it is working properly. If
the brake does not provide proper braking
performance, inspect the brake for wear or
brake fluid leakage. (See the following section
for more details.)
2. Loosen the locknut.
3. Turn the chain tension adjusting bolt
clockwise until it is finger tight, and then
loosen it 1/4 turn.
Checking the brake pads
Check the brake pads for wear.
4. Hold the chain tension adjusting bolt in
place while tightening the locknut.
If the brake pads reach the wear limit, ask a
Yamaha dealer to replace them.
1. Locknut
2. Chain tension adjusting bolt
1. Brake pad wear indicator
2. Brake pad wear limit
5. Install the right side cover and the shroud.
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Periodic maintenance
Brake pad wear limit:
4.7 mm (0.19 in)
Checking the parking brake pads
Check the parking brake pads for wear by
measuring the thickness of the pads. If the
parking brake pads reach the wear limit, ask a
Yamaha dealer to replace them.
1. Parking brake pad locknut
2. Parking brake pad adjusting bolt
3. Parking brake cable locknut
4. Parking brake cable adjusting bolt
5. Parking brake cable length
Parking brake cable length:
43.5–46.5 mm (1.713–1.831 in)
4. Tighten the parking brake cable locknut.
5. Turn the parking brake pad adjusting bolt
in or out to adjust the clearance between
the parking brake pads and the brake
disc.
1. Parking brake pad wear limit
Parking brake pad wear limit:
1.2 mm (0.047 in)
To adjust the parking brake
As the parking brake pads wear, adjustment
may be necessary to ensure proper brake
performance.
EWS00450
WARNING
Be sure to have a Yamaha dealer make this
adjustment.
1. Loosen the parking brake pad locknut
and the parking brake pad adjusting bolt.
2. Loosen the parking brake cable locknut.
3. Turn the parking brake cable adjusting
bolt in or out to adjust the cable length.
1. Parking brake pad
2. Brake disc
Parking brake pad to brake disc clear-
ance (a) + (b):
1.5–2.0 mm (0.059–0.079 in)
6. Tighten the parking brake pad locknut.
59
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Periodic maintenance
G All oil seals of the master cylinder and cali-
per cylinder
Checking the brake fluid level
EWS00460
WARNING
G The brake hose
ESU12141
Be careful that water does not enter the
master cylinder when refilling. Water will
significantly lower the boiling point of the
fluid and may result in vapor lock.
If the brake fluid level goes down, consult
a Yamaha dealer.
Skis and ski runners
Check the skis and ski runners for wear and
damage. Replace if necessary.
ECS00550
CAUTION:
Brake fluid may deteriorate painted sur-
faces or plastic parts. Never spill any fluid.
If any is spilled, clean it up immediately.
Place the snowmobile on a level surface.
Check that the brake fluid is above the lower
level and replenish when necessary.
1. Ski runner wear limit
1. Ski wear limit
1. Lower level
Ski runner wear limit:
Specified brake fluid:
DOT 4
FX10 / FX10RT / FX10RTR /
FX10RTRA 8 mm (0.31 in)
FX10MT / FX10MTR / FX10MTRA 6
mm (0.24 in)
Changing the brake fluid
EWS00470
Ski wear limit:
WARNING
FX10 13 mm (0.51 in)
FX10RT / FX10RTR / FX10RTRA 12
mm (0.47 in)
FX10MT / FX10MTR / FX10MTRA 24
mm (0.94 in)
Make sure that the brake fluid and the
above parts are replaced by a Yamaha
dealer.
Brake fluid replacement is necessary when
the following components are replaced during
the periodic maintenance or if they are dam-
aged or leaking.
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Periodic maintenance
ECS00560
CAUTION:
Avoid scratching the skis when loading
and unloading the snowmobile, when
riding in areas with little or no snow, or on
sharp edges such as concrete, curbs, etc.
This will wear or damage the skis.
To align the skis
1. Turn the handlebar so the skis face
straight ahead.
2. Check the following for ski alignment:
G Skis are facing forward.
If excessive free play is felt, consult a Yamaha
dealer.
ESU12171
G Ski toe-out (distance A – distance B) is
within specification.
Drive track and slide runners
Drive track
EWS00480
WARNING
A broken track, track fittings or debris
thrown by the drive track could be danger-
ous to an operator or bystanders. Observe
the following precautions:
G Do not allow anyone to stand behind the
snowmobile when the engine is running.
G When the rear of the snowmobile is
raised to allow the drive track to spin, a
suitable stand must be used to support
the rear of the snowmobile. Never allow
anyone to hold the rear of the snowmo-
bile off the ground to allow the drive
track to spin. Never allow anyone near a
rotating drive track.
G Inspect the drive track condition fre-
quently. Replace damaged slide metal.
Replace the drive track if it is damaged
to the depth where fabric reinforcement
material is visible or support rods are
broken. Otherwise, track damage or fail-
ure could result in loss of braking ability
and snowmobile control, which could
cause an accident.
1. Distance A
2. Distance B
Ski toe-out (distance A – distance B):
0.0–15.0 mm (0.00–0.59 in)
3. If the alignment is not correct, consult a
Yamaha dealer.
ESU12151
Steering system
Check the handlebar for excessive free play.
To check the handlebar
1. Push the handlebar up and down and
back and forth.
2. Turn the handlebar slightly to the right
and left.
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Periodic maintenance
Checking the drive track
NOTE:
EWS00490
Measure the gap between the slide runner
and the edge of the track window. Measure
both sides.
WARNING
Do not operate the snowmobile if you find
damage to the drive track, or if it has been
maladjusted. Drive track damage or failure
could result in loss of braking ability and
snowmobile control, which could cause
an accident.
Check the drive track for deflection, wear, and
damage.
Adjust or replace if necessary. (See the fol-
lowing section for more details.)
1. Drive track deflection
Standard drive track deflection:
FX10 25.0–30.0 mm (0.98–1.18 in)
FX10MT 30.0–35.0 mm (1.18–1.38 in)
FX10MTR 30.0–35.0 mm (1.18–1.38
in)
FX10MTRA 30.0–35.0 mm (1.18–1.38
in)
FX10RT 25.0–30.0 mm (0.98–1.18 in)
FX10RTR 25.0–30.0 mm (0.98–1.18
in)
FX10RTRA 25.0–30.0 mm (0.98–1.18
in)
Measuring the drive track deflection
1. Lay the snowmobile on its side.
2. Measure the drive track deflection with a
spring scale. Pull at the center of the drive
track with a force of 100 N (10 kg, 22 lb).
3. If the deflection is incorrect, adjust the
drive track.
Adjusting the drive track
EWS00500
WARNING
G Be sure to have a Yamaha dealer make
this adjustment.
G Support the snowmobile securely on a
suitable stand before working under-
neath the snowmobile.
G Operate the engine in a well-ventilated
area.
1. Spring scale
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Periodic maintenance
1. Lift the rear of the snowmobile onto a suit-
able stand to raise the drive track off the
ground.
2. Loosen the rear axle nut.
1. Left adjusting nut
2. Right adjusting nut
Shifted to right
1. Rear axle nut
3. Start the engine and rotate the drive track
one or two turns. Stop the engine.
4. Check the drive track alignment with the
slide runners. If the alignment is incorrect,
align the drive track by turning the left and
right adjusting nuts.
1. Forward
2. Gap
3. Slide runner
4. Drive track
5. Slide metal
Shifted to left
1. Slide runner
Drive track
alignment
Shifted to
right
Shifted to left
Left adjusting
nut
Turn out
Turn in
Turn in
Right adjust-
ing nut
Turn out
1. Forward
2. Gap
3. Slide runner
4. Drive track
5. Slide metal
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Periodic maintenance
ECS00350
5. Adjust the drive track deflection to speci-
fication.
CAUTION:
Ride on fresh snow frequently. Operating
on ice or hard-packed snow will rapidly
wear the slide runners.
Drive track
deflection
More than
specified
Less than
specified
Left adjusting
nut
Turn in
Turn in
Turn out
Turn out
ESU12180
Right adjust-
ing nut
High-profile pattern drive track
FX10MT / FX10MTR / FX10MTRA
This snowmobile is originally equipped with a
51-mm (2.0-in) high-profile pattern drive track
specifically for use in deep snow riding condi-
tions.
ECS00591
CAUTION:
The right and left adjusting nuts should be
turned an equal amount.
Therefore, avoid prolonged operation on hard
surfaces such as ice, hard-packed snow, dirt,
etc., to extend the life of the track and slide
runners.
6. Recheck alignment and deflection. If nec-
essary, repeat steps 3 to 5 until the prop-
er adjustment is achieved.
7. Tighten the rear axle nut.
Rear axle nut tightening torque:
75 Nm (7.5 m·kgf, 54 ft·lb)
Slide runners
Check the slide runners for wear and dam-
age.
If the slide runners reach the wear limit, they
should be replaced.
ECS00610
CAUTION:
G Only use in deep snow riding condi-
tions.
G Operation on areas with light snowfall,
ice, hard-packed snow, dirt, or grass will
result in rapid wear or damage to the
track and slide runners from lack of
snow which serves as a lubricant.
1. Slide runner
2. Wear limit height
ESU12190
Lubrication
Lubricate the following points with the speci-
fied grease.
Slide runner wear limit height:
10.5 mm (0.41 in)
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Periodic maintenance
EWS00510
WARNING
G Apply a dab of grease onto the cable end
only. Do not grease the throttle cable be-
cause it could become frozen, which
could cause loss of control.
G Be sure to have a Yamaha dealer lubri-
cate the front and rear suspensions.
Lubricant:
Low-temperature grease
1. Lubrication point
ESU12850
Replacing a headlight bulb
EWS00530
WARNING
Keep flammable products and your hands
away from the hot bulb until it has cooled
down.
1. Remove the shroud. (See page 43 for re-
moval procedures.)
2. Disconnect the headlight coupler.
3. Remove the bulb holder cover.
1. Throttle cable end
1. Headlight coupler
2. Bulb holder cover
1. Lubrication point
4. Unhook the bulb holder by pushing it in,
then clockwise.
65
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Periodic maintenance
EASU1d286j1usting the headlight beams
1. Remove the shroud. (See page 43 for re-
moval procedures.)
2. Turn the headlight beam adjusting screw
in or out to adjust the headlight beams.
To lower the headlight beams, turn the
headlight beam adjusting screw in direc-
tion (a). To raise the headlight beams,
turn the headlight beam adjusting screw
in direction (b).
1. Bulb holder
5. Remove the bulb.
6. Install the new bulb, and then hook the
bulb holder onto the headlight unit.
Bulb type:
Halogen bulb
ECS00620
CAUTION:
Keep oil and your hands away from the
glass part of the bulb or its life and illumi-
nation will be affected.
If the glass is oil stained, thoroughly clean
it with a cloth moistened with alcohol or
lacquer thinner.
1. Headlight beam adjusting screw
3. Install the shroud.
ESU12290 Fittings and fasteners
Check the tightness of the fittings and fasten-
ers.
Tighten in proper sequence and torque if nec-
essary.
ESU12300
Battery
This snowmobile is equipped with a sealed-
type (MF) battery, which does not require any
maintenance. There is no need to check the
electrolyte or to add distilled water.
To charge the battery
Have a Yamaha dealer charge the battery as
soon as possible if it seems to have dis-
charged. Keep in mind that the battery tends
to discharge more quickly if the snowmobile is
equipped with electrical accessories.
1. Do not touch the glass part of the bulb.
7. Install the bulb holder cover, and then
connect the headlight coupler.
8. Install the shroud.
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Periodic maintenance
EWS00540
WARNING
Battery electrolyte is poisonous and dan-
gerous. It contains sulfuric acid and can
cause severe burns. Avoid contact with
skin, eyes, or clothing.
ANTIDOTE:
G EXTERNAL: Flush with water.
G INTERNAL: Drink large quantities of wa-
ter or milk. Follow with milk of magne-
sia, beaten egg, or vegetable oil. Call
physician immediately.
G EYES: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc. away. Venti-
late when charging or using in an en-
closed space. Always shield your eyes
when working near batteries.
1. Main fuse
2. Fuel injection system fuse
3. Spare fuse
KEEP OUT OF THE REACH OF CHILDREN.
ESU12870
Replacing a fuse
EWS00550
1. “IGN” (ignition) fuse
2. “FAN” (radiator fan) fuse
3. “SIG” (signal) fuse
WARNING
Be sure to use the specified fuse. A wrong
fuse could cause electrical system dam-
age or A FIRE HAZARD.
4. “DC TERM” (auxiliary DC jack) fuse
(FX10MT / FX10MTR / FX10MTRA)
5. “HEAD” (headlight) fuse
ECS00631
6. Spare fuse
CAUTION:
Be sure to turn the main switch to the off
position and disconnect the negative bat-
tery lead to prevent accidental short-cir-
cuiting.
1. Remove the shroud and the right side
cover. (See page 43 for removal proce-
dures.)
2. Disconnect the negative battery lead.
3. Replace the blown fuse with one of the
proper amperage.
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Periodic maintenance
Specified fuses:
Main fuse:
40.0 A
Fuel injection system fuse:
10.0 A
“HEAD” (headlight) fuse:
20.0 A
“SIG” (signal) fuse:
3.0 A
“DC TERM” (auxiliary DC jack) fuse:
FX10MT 3.0 A
FX10MTR 3.0 A
FX10MTRA 3.0 A
“IGN” (ignition) fuse:
20.0 A
“FAN” (radiator fan motor) fuse:
10.0 A
Spare fuses:
20.0 A, 10.0 A, 3.0 A
4. Connect the negative battery lead.
5. Install the right side cover and the shroud.
NOTE:
If the fuse immediately blows again, ask a
Yamaha dealer to inspect the snowmobile.
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Troubleshooting
ESU12882
G The T.O.R.S. is an important safety de-
vice; in the case of a malfunction, take
the snowmobile to a Yamaha dealer im-
mediately for repair.
Engine turns over but does not start
1. Fuel system
No fuel supplied to combustion chamber
G No fuel in tank: Supply fuel.
G Clogged fuel line: Clean fuel line.
G Clogged injector: Ask a Yamaha dealer
to inspect.
3. Compression
Insufficient
G Loose cylinder head nuts: Tighten nuts
properly.
G Worn or damaged gasket: Replace
gasket.
G Worn or damaged piston and cylinder:
Ask a Yamaha dealer to inspect.
Fuel supplied to combustion chamber
G Flooded engine: Crank engine or wipe
the spark plug dry.
2. Electrical system
Discharged battery
Poor spark or no spark
If the battery is discharged, the engine can be
started using a fully-charged 12-volt battery
and jumper cables.
EWS00580
G Spark plugs are dirty with carbon or are
wet: Remove carbon or wipe the spark
plugs dry. Replace if necessary.
G Faulty ignition system: Ask a Yamaha
dealer to inspect.
WARNING
G Connect the jumper cables only to the
battery terminals. Do not connect them
to the frame or any wire or other lead.
G When connecting the jumper cables, do
not contact the jumper cables to each
other or to the frame or any metal part of
the snowmobile. This can cause electri-
cal system damage or A FIRE HAZARD.
G T.O.R.S. malfunction: Disconnect the
throttle switch connectors and connect
the wire harness connectors together
to bypass the T.O.R.S.
1. Apply the parking brake and turn the
main switch to the off position.
2. Remove the shroud and the right side
cover. (See page 43 for removal proce-
dures.)
3. Connect the red (+) jumper cable to the
positive (+) terminal of the discharged
battery.
4. Connect the other end of the red (+)
jumper cable to the positive (+) terminal
of the booster battery.
5. Connect the black (–) jumper cable to the
negative (–) terminal of the booster bat-
tery.
1. Throttle switch connector
EWS00560
WARNING
G Before bypassing the T.O.R.S., make
sure that the throttle returns properly to
the fully closed position.
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Troubleshooting
6. Connect the other end of the black (–) 4. Seized engine: Seizure is caused by poor
jumper cable to the negative (–) terminal
of the discharged battery.
lubrication, inadequate fuel, or an air
leak—. Ask a Yamaha dealer to inspect.
Engine power is low
1. Low coolant temperature indicator light is
flashing: Warm the engine up.
2. Faulty spark plugs: Clean or replace the
spark plugs.
3. Improper fuel flow: See “Fuel system”
above.
4. Incorrect V-belt clutch settings for altitude
or conditions: Ask a Yamaha dealer to in-
spect.
ECS00670
Engine constantly backfires or mis-
fires
CAUTION:
1. Faulty spark plugs: Replace the spark
Do not reverse the connections! Make
sure that all connections are secure and
correct before attempting to start the en-
gine. Any wrong connection could dam-
age the electrical system.
plugs.
2. Clogged fuel system: See “Fuel system”
above.
3. Malfunctioning T.O.R.S.: See “Electrical
system” above.
7. Start the engine.
Engine overheats
8. Disconnect the black (–) jumper cable
from the negative (–) terminal of the dis-
charged battery.
9. Disconnect the black (–) jumper cable
from the negative (–) terminal of the bat-
tery used to jump start the engine.
10. Disconnect the red (+) jumper cable from
the positive (+) terminal of the battery
used to jump start the engine.
11. Disconnect the red (+) jumper cable from
the positive (+) terminal of the discharged
battery.
12. Install the right side cover and the shroud.
Electric starter does not operate or
operates slowly
1. Insufficient coolant: Add coolant.
2. Air in cooling system: Bleed the cooling
system or ask a Yamaha dealer to in-
spect.
3. Leaking coolant: Ask a Yamaha dealer to
inspect.
Snowmobile does not move
1. Malfunctioning V-belt clutch: Ask
a
Yamaha dealer to inspect.
2. Drive track does not move: Foreign ob-
ject is caught in the drive track, or slide
runners have melted to the slide metal
due to lack of lubrication.
3. Tight, loose, or broken drive chain: Ask a
Yamaha dealer to inspect.
1. Engine stop switch is pushed in: Pull it
V-belt twists
1. Improper V-belt: Replace with the correct
out.
2. Faulty wire connections: Check connec-
tions or ask a Yamaha dealer to inspect.
3. Discharged battery: Charge battery or
see “Discharged battery” above.
V-belt.
2. Incorrect V-belt clutch offset: Ask a
Yamaha dealer to inspect.
70
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Troubleshooting
3. Loose or broken engine mount(s): Ask a
Yamaha dealer to inspect.
V-belt slips or becomes extremely hot
1. Oily or dirty V-belt or primary and second-
ary sheave assembly surfaces: Clean.
2. Problem with the driveline: See “V-belt
twists” above.
Engine does not upshift or downshift
properly or engages harshly
1. Worn or damaged V-belt: Replace the V-
belt or ask a Yamaha dealer to inspect.
2. Incorrect V-belt clutch settings for altitude
or conditions: Ask a Yamaha dealer to in-
spect.
3. Worn or sticking primary sheave assem-
bly: Ask a Yamaha dealer to inspect.
4. Worn or sticking secondary sheave as-
sembly: Ask a Yamaha dealer to inspect.
Noise or excessive vibration in drive
chain and sprockets
1. Broken V-belt clutch components: Ask a
Yamaha dealer to inspect.
2. Worn or damaged bearings: Ask a
Yamaha dealer to inspect.
3. Worn or damaged V-belt with flat spots:
Replace.
4. Worn or damaged idler wheels or shafts:
Ask a Yamaha dealer to inspect.
5. Worn or damaged drive track: Ask a
Yamaha dealer to inspect.
71
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Storage
ESU12430
ECS00680
CAUTION:
Long-term storage requires some preventive
procedures to guard against deterioration.
Cleaning
Thoroughly clean the snowmobile, inside and
out, to remove the corrosive salts and acids
that can accumulate. Use Yamaha Mud,
Grease, and Engine Cleaner, or an equivalent
product, to loosen mud, grease, and grime.
Wash with mild soap, then rinse and dry com-
pletely.
Do not attempt to store the snowmobile by
simply starting the engine occasionally
during the storage period. This can cause
more harm than good! Moisture and acids
form during combustion which can actual-
ly increase the chance for corrosion dam-
age during the storage period.
Surface protection
Apply a coat of wax to painted surfaces. Apply
suitable protectants to the exterior of the en-
gine, drive track, and to other metal, plastic,
and rubber parts.
Lubrication
Lubricate moving parts, suspension linkage,
and pivot points. Use the grease or lubricant
specified in the MAINTENANCE section, or
Yamaha Lube-Zall general-purpose lubricant.
Proper lubrication fights corrosion while it re-
duces friction.
Battery
EWS00610
WARNING
G Never smoke around the battery while it
is being charged. Sparks may ignite the
hydrogen gas created by the battery.
G Disconnect the negative lead first, then
the positive lead from the battery.
G Connect the positive lead first, then the
negative lead to the battery when install-
ing the battery.
G Never connect the battery to or discon-
nect it from the snowmobile while it is
being charged. Sparks may ignite the
hydrogen gas created by the battery.
G Make sure that the battery terminals are
tight.
Fuel system
Add Yamaha Fuel Stabilizer and Conditioner,
or an equivalent stabilizer, to the fuel tank to
help prevent fuel oxidation and gum and var-
nish deposits, and to inhibit corrosion in the
fuel system and injectors. In areas where ox-
ygenated fuel (gasohol) is used, consult a
Yamaha dealer.
Engine
Proper storage of the engine is essential to
prevent costly rust and corrosion damage to
internal engine components. This is more im-
portant in areas where oxygenated fuel (gas-
ohol) is used, because the alcohol content in
the fuel increases the chance for water to en-
ter the engine. Use Yamaha Stor-Rite Engine
Fogging Oil, or an equivalent fogging oil, to
protect both the combustion chamber and
crankshaft from corrosion. An alternate meth-
od is to remove the intake silencer and squirt
oil into the throttle bodies while the engine is
running.
Remove the battery from the snowmobile.
Store it in a cool, dry place that is above 0 °C
(32 °F), but less than 30 °C (90 °F). Check the
condition of the battery once a month, and
charge it as necessary.
ECS00690
CAUTION:
G Always keep the battery charged. Stor-
ing a discharged battery can cause per-
manent battery damage.
72
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Storage
G To charge a sealed-type (MF) battery, a
special (constant-voltage) battery
charger is required. Using a convention-
al battery charger will damage the bat-
tery. If you do not have access to a
sealed-type (MF) battery charger, have a
Yamaha dealer charge your battery.
G Do not charge the battery quickly.
Charge the battery for 10 hours at 1.8
amperes.
Drive track
Loosen the drive track and block up the chas-
sis so that the track is suspended above the
ground.
V-belt
Remove the V-belt and store separately.
Storage
Store the snowmobile in a dry, well-ventilated
place out of direct sunlight. Put a fabric cover
over the snowmobile, preferably one that is
designed for it. Do not use a plastic or vinyl
cover—condensation could be trapped un-
derneath which could increase the chances of
rusting.
Returning to service after storage
When returning your snowmobile to service,
install the V-belt and battery and adjust the
drive track.
Remove the spark plugs and clean or replace
them if necessary. Perform all other pre-oper-
ation and seasonal maintenance checks list-
ed in the periodic maintenance chart.
NOTE:
Before installing the battery, have a Yamaha
dealer inspect and fully charge it.
For peak performance, it is recommended
that you have your snowmobile checked and
tuned by a Yamaha dealer. The dealer has
the experience and training to help you get
the maximum performance and use out of
your Yamaha snowmobile.
73
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Specifications
ESU12462
Engine oil:
Recommended grade:
API service SG type or higher, JASO
standard MA
Dimensions:
Overall length:
Type:
SAE 0W-30
Fuel injection:
Model × quantity:
41EIDW × 2
Manufacturer:
MIKUNI
Fuel:
Type:
REGULAR UNLEADED GASOLINE
FX10 2815 mm (110.8 in)
FX10MT 3240 mm (127.6 in)
FX10MTR 3240 mm (127.6 in)
FX10MTRA 3240 mm (127.6 in)
FX10RT 2815 mm (110.8 in)
FX10RTR 2815 mm (110.8 in)
FX10RTRA 2815 mm (110.8 in)
Overall width:
FX10 1205 mm (47.4 in)
FX10MT 1225 mm (48.2 in)
FX10MTR 1225 mm (48.2 in)
FX10MTRA 1225 mm (48.2 in)
FX10RT 1205 mm (47.4 in)
FX10RTR 1205 mm (47.4 in)
FX10RTRA 1205 mm (47.4 in)
Overall height:
ONLY
Minimum pump octane (R+M)/2:
86
Starting system:
Electric starter
Chassis:
1160 mm (45.7 in)
Drive track:
Dry weight:
Material:
FX10 237.0 kg (522 lb)
FX10MT 247.0 kg (545 lb)
FX10MTR 251.0 kg (553 lb)
FX10MTRA 251.0 kg (553 lb)
FX10RT 233.0 kg (514 lb)
FX10RTR 236.0 kg (520 lb)
FX10RTRA 236.0 kg (520 lb)
Ski stance:
FX10 1050 mm (41.3 in)
FX10MT 980 mm (38.6 in)
FX10MTR 980 mm (38.6 in)
FX10MTRA 980 mm (38.6 in)
FX10RT 1050 mm (41.3 in)
FX10RTR 1050 mm (41.3 in)
FX10RTRA 1050 mm (41.3 in)
Engine:
Molded rubber, fiberglass-rod reinforced
Type:
Internal drive type
Width:
381 mm (15.0 in)
Deflection:
FX10 25.0–30.0 mm (0.98–1.18 in)
FX10MT 30.0–35.0 mm (1.18–1.38 in)
FX10MTR 30.0–35.0 mm (1.18–1.38 in)
FX10MTRA 30.0–35.0 mm (1.18–1.38 in)
FX10RT 25.0–30.0 mm (0.98–1.18 in)
FX10RTR 25.0–30.0 mm (0.98–1.18 in)
FX10RTRA 25.0–30.0 mm (0.98–1.18 in)
Length on ground:
FX10 810 mm (31.9 in)
FX10MT 1092 mm (43.0 in)
FX10MTR 1092 mm (43.0 in)
FX10MTRA 1092 mm (43.0 in)
FX10RT 810 mm (31.9 in)
FX10RTR 810 mm (31.9 in)
FX10RTRA 810 mm (31.9 in)
Rear suspension:
Type:
Liquid cooled 4-stroke, 12 valves
Cylinder arrangement:
Backward-inclined parallel 3-cylinder
Displacement:
1049.0 cm³
Type:
Bore × stroke:
Slide rail suspension
Track sprocket wheel:
82.0 × 66.2 mm (3.23 × 2.61 in)
Idling speed:
Material:
1450–1550 r/min
Polyethylene
74
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Specifications
Number of teeth:
FX10 9
FX10MT 7
Secondary reduction ratio [R]:
FX10 2.38
FX10MTR 2.50
FX10MTR 7
FX10MTRA 7
FX10RT 9
FX10MTRA 2.50
FX10RTR 2.38
FX10RTRA 2.38
Fuel tank capacity:
28.0 L (7.40 US gal) (6.16 Imp.gal)
Engine oil quantity:
With oil filter cartridge replacement:
3.2 L (3.38 US qt) (2.82 Imp.qt)
Without oil filter cartridge replacement:
3.0 L (3.17 US qt) (2.64 Imp.qt)
Total amount:
FX10RTR 9
FX10RTRA 9
Transmission:
Clutch type:
Automatic centrifugal engagement
Ratio range:
3.80–1.00 :1
Sheave distance:
267.0–270.0 mm (10.51–10.63 in)
Sheave offset:
3.9 L (4.12 US qt) (3.43 Imp.qt)
Brake:
13.5–16.5 mm (0.53–0.65 in)
Engagement speed (Subject to change
according to elevation settings.):
FX10 3550–3950 r/min
FX10MT 3300–3700 r/min
FX10MTR 3300–3700 r/min
FX10MTRA 3300–3700 r/min
FX10RT 3550–3950 r/min
FX10RTR 3550–3950 r/min
FX10RTRA 3550–3950 r/min
Shift speed [Subject to change according to
elevation settings. Usually achieved after
approximately 800m (0.5 mi) traveled.]:
8500–9000 r/min
Type:
Hydraulic disc type (ventilated disc)
Operation:
Handle lever, left-hand operated
Throttle:
Operation:
Handle lever, right-hand operated
Electrical system:
Ignition system:
T.C.I.
Spark plug:
Manufacturer:
NGK
Model:
Drive chain type:
CR9E
Silent chain enclosed in oil bath
Reverse system:
FX10 Yes
Gap:
0.7–0.8 mm (0.028–0.031 in)
Battery:
FX10MT No
Model:
FX10MTR Yes
YTX20L-BS
FX10MTRA Yes
FX10RT No
Voltage, capacity:
12 V, 18.0 Ah
FX10RTR Yes
FX10RTRA Yes
Ten-hour rate amperage:
1.8 A
Secondary reduction ratio:
FX10 39/21 (1.86)
Bulb voltage, wattage × quantity:
Headlight:
FX10MT 40/20 (2.00)
FX10MTR 40/20 (2.00)
FX10MTRA 40/20 (2.00)
FX10RT 39/21 (1.86)
12 V, 60/55 W × 2
Headlight bulb type:
Halogen bulb
Tail/brake light:
FX10RTR 39/21 (1.86)
FX10RTRA 39/21 (1.86)
LED
Meter lighting:
LED
High beam indicator light:
LED
75
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Specifications
Warning light:
LED
Low coolant temperature indicator light:
LED
76
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Consumer information
ESU12480
Identification number records
Record the frame serial number, engine serial
number (Primary ID), and key identification
number in the spaces provided for assistance
when ordering spare parts from a Yamaha
dealer.
Also, record and keep the ID numbers in a
separate place in case the snowmobile is sto-
len.
Frame serial number
1. Engine serial number
The frame serial number is the seventeen-
digit number stamped on the frame of the
snowmobile.
Key identification number
The key identification number is stamped in
the location as shown.
1. Frame serial number
1. Key identification number
Engine serial number (Primary ID)
The engine serial number is stamped in the
location as shown.
77
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Consumer information
ESU12500
YAMAHA MOTOR CORPORATION, U.S.A. SNOWMOBILE LIMIT-
ED WARRANTY
Yamaha Motor Corporation, U.S.A. hereby warrants that
new Yamaha snowmobiles purchased from an autho-
rized Yamaha snowmobile dealer in the continental United
States will be free from defects in material and workman-
ship for the period of time stated herein, subject to certain
stated limitations.
2. Give notice to an authorized Yamaha snowmobile
dealer of any and all apparent defects within ten (10)
days after discovery, and make the machine avail-
able at that time for inspection and repairs at such
dealer’s place of business. You may locate your
nearest authorized Yamaha dealer through your
local telephone directory.
WARRANTY PERIOD:
WARRANTY TRANSFER: To transfer any remain-
ing warranty from the original purchaser to any subse-
quent purchaser, it is imperative that the machine be
inspected and registered for warranty by an authorized
Yamaha snowmobile dealer. In order for this warranty
to remain in effect, this inspection and registration must
take place within ten (10) days after ownership transfer.
An inspection and registration fee will be charged for this
service.
1. All Yamaha snowmobiles shall be warranted for a
term of one (1) year from the date of purchase, plus
a special early-season extension (if applicable).
2. All Yamaha snowmobile clutch components are war-
ranted against abnormal wear for one (1) year from
the date of purchase, plus a special early-season
extension (if applicable).
DURING THE PERIOD OF WARRANTY any au-
thorized Yamaha snowmobile dealer will, free of charge,
repair or replace, at Yamaha’s option, any part adjudged
defective by Yamaha due to faulty workmanship or
material from the factory. Parts used in warranty repairs
will be warranted for the balance of the snowmobile’s
warranty period. All parts replaced under warranty be-
come the property of Yamaha Motor Corporation, U.S.A.
EMISSION CONTROL SYSTEM WARRANTY
Yamaha Motor Corporation, USA also warrants to the
ultimate purchaser and each subsequent purchaser of
each 2006 and later model Yamaha snowmobile cov-
ered by this warranty that the vehicle is designed, built,
and equipped so as to conform at the time of sale with
all U.S. emissions standards applicable at the time of
manufacture and that it is free from defects in materials
and workmanship which would cause it not to meet
these standards within the period listed immediately
below. Failures other than those resulting from defects
in material or workmanship which arise solely as a
result of owner abuse and/or lack of proper mainte-
nance are not covered by this warranty.
GENERAL EXCLUSIONS from this warranty shall
include any failures to the machine caused by:
1. Competition, racing, or non-Yamaha authorized rental
use.
2. Operation on surfaces other than snow or ice.
3. Installation of parts or accessories that are not qual-
itatively equivalent to genuine Yamaha parts.
4. Abnormal strain, neglect, or abuse.
5. Lack of proper maintenance.
All Models
6. Accident or collision damage.
Thirty (30) months from the original purchase date
7. Modification to original parts.
SPECIFIC EXCLUSIONS from this warranty shall
include parts replaced due to normal wear or routine
maintenance including oil, spark plugs, clutch drive belts,
slide runners, and track.
THE CUSTOMER’S RESPONSIBILITY under this
warranty shall be to:
1. Operate and maintain the snowmobile as specified in
the appropriate Owner’s Manual.
78
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Consumer information
YAMAHA MOTOR CORPORATION, U.S.A.
MAKES NO OTHER WARRANTY OF ANY KIND,
EXPRESSED OR IMPLIED. ALL IMPLIED WAR-
RANTIES OF MERCHANTABILITY AND FIT-
NESS FOR A PARTICULAR PURPOSE WHICH
EXCEED THE OBLIGATIONS AND TIME LIM-
ITS STATED IN THIS WARRANTY ARE HEREBY
DISCLAIMED BY YAMAHA MOTOR CORPO-
RATION, U.S.A. AND EXCLUDED FROM THIS
WARRANTY.
WARRANTY QUESTIONS AND
ANSWERS
Q. What costs are my responsibility during the warranty
period?
A. The customer’s responsibility includes all costs of
normal maintenance services, non-warranty repairs,
accident and collision damages, as well as oil, spark
plugs, clutch drive belts, and slide runners.
Q. What are some examples of “abnormal” strain, ne-
glect, or abuse?
SOME STATES DO NOT ALLOW LIMITATIONS
ON HOW LONG AN IMPLIED WARRANTY
LASTS, SO THE ABOVE LIMITATION MAY
NOT APPLY TO YOU. ALSO EXCLUDED FROM
THIS WARRANTY ARE ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES INCLUDING
LOSS OF USE. SOME STATES DO NOT AL-
LOW THE EXCLUSION OR LIMITATION OF
INCIDENTAL OR CONSEQUENTIAL DAM-
AGES, SO THE ABOVE EXCLUSION MAY NOT
APPLY TO YOU.
A. These terms are general and overlap each other in
areas. Specific examples include: Running the ma-
chine out of oil, hitting an object submerged under
snow, operation on surfaces other than snow or ice,
operating the machine with a broken or damaged
part which causes another part to fail, and so on. If
you have any specific questions on operation or
maintenance, please contact your dealer for advice.
Q. May I perform any or all of the recommended main-
tenance shown in the Owner’s Manual instead of
having the dealer do them?
A. Yes, if you are a qualified snowmobile mechanic and
follow the procedures specified in the Owner’s and
Service Manual. We do recommend, however, that
items requiring special tools or equipment be done by
a Yamaha snowmobile dealer.
THIS WARRANTY GIVES YOU SPECIFIC LE-
GAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS WHICH VARY FROM STATE
TO STATE.
Q. Under what conditions is the clutch not covered by
warranty?
SPECIAL EARLY-SEASON WARRANTY EX-
TENSION
A special warranty extension is available for all new
Yamaha snowmobiles purchased between June 1 and
December 1.
A. Clutches as well as clutch components wear with
use. Normal wear is not covered under warranty such
service is the customer’s responsibility. Abnormal
wear is, however, covered for one (1) year from the
date of purchase. Your Yamaha snowmobile dealer
possesses criteria as to what constitutes abnormal
wear.
All new Yamaha snowmobiles purchased between June
1 and December 1 will have the warranty extended to
November 30 of the following year.
Q. Will the warranty be void or canceled if I do not
operate or maintain my new Yamaha exactly as
specified in the Owner’s Manual?
A. No. The warranty on a new Yamaha cannot be
“voided” or “canceled.” However, if a particular failure
is caused by operation or maintenance other than as
shown in the Owner’s Manual, that failure may not be
covered under warranty.
YAMAHA MOTOR CORPORATION, U.S.A.
Post Office Box 6555
Cypress, California 90630
79
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Consumer information
Q. What responsibility does my dealer have under this
warranty?
When contacting Yamaha Motor Corpora-
tion, U.S.A. be sure to include the model,
serial number, names, dates, and receipts.
A. Each Yamaha snowmobile dealer is expected to:
1. Completely set up every new machine before sale.
2. Explain the operation, maintenance, and warranty
requirements to your satisfaction at the time of sale,
and upon your request at any later date.
3. In addition, each Yamaha snowmobile dealer is held
responsible for his setup, service and warranty repair
work.
CHANGE OF ADDRESS
The federal government requires each manufacturer of a
motor vehicle to maintain a complete, up-to-date list of all
first purchasers against the possibility of a safety-related
defect and recall. This list is compiled from the purchase
registrations sent to Yamaha Motor Corporation, U.S.A.
by the selling dealer at the time of your purchase.
Q. Whom should I contact if I have further questions
about this warranty?
A. Your Yamaha snowmobile dealer has the informa-
tion and experience necessary to answer almost any
questions about this warranty. If the dealer is not able
to do so, he is expected to contact Yamaha Motor
Corporation, U.S.A., for clarification or assistance.
If you should move after you have purchased your new
snowmobile, please advise us of your new address by
sending a postcard listing your snowmobile model name,
engine serial number, dealer number (or dealer’s name)
as it is shown on your warranty registration identification,
your name and new mailing address. Mail to:
CUSTOMER SERVICE
If your machine requires warranty service, you must take
it to any authorized Yamaha snowmobile dealer within
the continental United States. Be sure to bring your
warranty identification card or other valid proof of the
original date of purchase. If a question or problem arises
regarding warranty, first contact the owner of the dealer-
ship. Since all warranty matters are handled at the dealer
level, this person is in the best position to help you. If you
are still not satisfied and require additional assistance,
please write:
YAMAHA MOTOR CORPORATION, U.S.A.
WARRANTY DEPARTMENT
P.O. Box 6555
Cypress, California 90630
This will ensure that Yamaha Motor Corporation, U.S.A.
has an up-to-date registration record in accordance with
federal law.
YAMAHA MOTOR CORPORATION, U.S.A.
CUSTOMER RELATIONS
DEPARTMENT
P.O. Box 6555
Cypress, California 90630
80
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Index
A
I
Air filter, checking..................................... 46 Identification numbers.............................. 77
Auxiliary DC jack
(FX10MT / FX10MTR / FX10MTRA) .... 16 Label locations ........................................... 4
B
Battery...................................................... 66 Lubrication................................................ 64
Brake lever............................................... 16 Main switch ................................................ 9
Break-in.................................................... 31
C
Control rods, adjusting
P
Coolant temperature warning indicator .... 14 Part locations ............................................. 6
D
emission control system ....................... 39
Drive chain housing.................................. 57 Pre-operation check list............................ 29
Drive guard............................................... 19
R
Drive track, high-profile pattern................ 64
Drive track life, maximizing ...................... 35
adjusting (FX10 / FX10RT /
E
Engine oil and oil filter cartridge............... 48 Riding your snowmobile ...........................32
Engine stop switch ................................... 15 Safety information ...................................... 1
Fittings and fasteners............................... 66 Shift lever
F
Front shock absorber air pressure,
adjusting (FX10RT / FX10RTR /
FX10MTR / FX10MTRA) ...................... 18
FX10RTRA) .......................................... 22 Shroud and covers................................... 18
Fuel level warning indicator...................... 13
Fuel meter and grip/thumb warmer level
Fuse, replacing......................................... 67
(FX10 / FX10MT / FX10MTR /
G
FX10MTRA).......................................... 21
Skis and ski runners................................. 60
General maintenance and lubrication
chart...................................................... 41 Spark plugs, checking.............................. 44
Grip/thumb warmer adjustment switch..... 15 Specifications........................................... 74
H
Speedometer unit..................................... 11
Headlight beam switch............................. 15 Starting the engine................................... 31
Headlight beams, adjusting...................... 66 Steering system ....................................... 61
Headlight bulb, replacing.......................... 65 Stopping the engine ................................. 38
High beam indicator light.......................... 12 Storage..................................................... 72
High-altitude settings................................ 48 Storage pouch.......................................... 19
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Index
Strap
(FX10MT / FX10MTR / FX10MTRA) .... 36
Suspension .............................................. 21
T
Throttle cable free play, adjusting ............ 45
Throttle lever .............................................. 9
Throttle override system (T.O.R.S.) ........... 9
Throttle override system (T.O.R.S.),
checking................................................ 45
Tool kit...................................................... 43
Transporting............................................. 38
Troubleshooting ....................................... 69
V
Valve clearance........................................ 48
V-belt........................................................ 54
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