READ THIS MANUAL CAREFULLY!
It contains important safety information.
OWNER’S MANUAL
YFA1R(C)
w
This ATV should not be ridden by anyone under 16 years of age.
LIT-11626-16-04
5VJ-28199-10
Download from Www.Somanuals.com. All Manuals Search And Download.
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00941
INTRODUCTION
Congratulations on your purchase of the Yamaha YFA1. It represents the result of many years of
Yamaha experience in the production of fine sporting, touring, and pace-setting racing machines. With
the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability
that have made Yamaha a leader in these fields.This manual will provide you with a good basic under-
standing of the features and operation of this ATV.This manual includes important safety informa-
tion. It provides information about special techniques and skills necessary to ride your ATV.It
also includes basic maintenance and inspection procedures. If you have any questions regarding the
operation or maintenance of your ATV, please consult a Yamaha dealer.
AN IMPORTANT SAFETY MESSAGE:
8 READ THIS MANUAL TOGETHER WITH TIPS FOR THE ATV RIDER CAREFULLY AND COM-
PLETELY BEFORE OPERATING YOUR ATV. MAKE SURE YOU UNDERSTAND ALL INSTRUC-
TIONS.
8 PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV.
8 NEVER OPERATE AN ATV WITHOUT PROPER TRAINING OR INSTRUCTION. FREE TRAINING
IS AVAILABLE TO ANYONE WHO BUYS A NEW ATV. CALL 1-800-887-2887 FOR MORE INFOR-
MATION.
8 THIS ATV, AND ANY OTHER ATV OVER 90cc, SHOULD NOT BE RIDDEN BY ANYONE UNDER
16 YEARS OF AGE.
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00801
IMPORTANT MANUAL INFORMATION
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERI-
OUS INJURY OR DEATH.
Particularly important information is distinguished in this manual by the following notations:
Q
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFE-
TY IS INVOLVED!
w
Failure to follow WARNING instructions could result in severe injury or death to
the machine operator, a bystander or a person inspecting or repairing the
machine.
cC
A CAUTION indicates special precautions that must be taken to avoid damage
to the machine.
NOTE:
A NOTE provides key information to make procedures easier or clearer.
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00011
IMPORTANT NOTICE
This machine is designed and manufactured for OFF-ROAD use only. It is illegal and unsafe to oper-
ate this machine on any public street, road or highway.
This machine complies with all applicable OFF-ROAD noise level and spark arrester laws and regula-
tions in effect at the time of manufacture.
Please check your local riding laws and regulations before operating this machine.
YFA1R(C)
EBU00981
OWNER’S MANUAL
© 2002 by Yamaha Motor Corporation, U.S.A.
1st edition, March 2002
AFFIX DEALER
All rights reserved.
LABEL HERE
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-11626-16-04
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00014
w
Indicates a potential hazard that could result
in serious injury or death.
CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS.......................1-1
CONTROL FUNCTIONS..........................4-1
Main switch ...........................................4-1
Indicator lights ......................................4-2
Handlebar switches..............................4-2
Throttle lever ........................................4-4
Speed limiter ........................................4-5
Front brake lever ..................................4-6
Rear brake lever...................................4-6
Parking brake .......................................4-7
Drive select lever..................................4-8
Fuel tank cap........................................4-8
Fuel cock..............................................4-9
Starter (choke)....................................4-10
Seat....................................................4-10
4
1
SAFETY INFORMATION.........................2-1
2
3
DESCRIPTION AND MACHINE
IDENTIFICATION.....................................3-1
Identification number records...............3-2
Key identification number.....................3-2
Vehicle identification number ...............3-3
Model label...........................................3-3
Download from Www.Somanuals.com. All Manuals Search And Download.
PRE-OPERATION CHECKS ...................5-1
Front and rear brakes...........................5-2
Fuel ......................................................5-3
Engine and transmission oill.................5-5
Chain....................................................5-6
Throttle lever ........................................5-6
Fittings and fasteners...........................5-6
Lights....................................................5-6
Switches...............................................5-6
Battery..................................................5-6
Tires .....................................................5-7
How to measure tire pressure ..............5-8
Tire wear limit.......................................5-9
Parking .................................................6-7
Parking on a slope................................6-8
Accessories and loading ......................6-9
5
Riding Your ATV.......................................7-1
Getting to know your ATV.....................7-3
Ride with care and good
7
judgement...........................................7-4
Be careful where you ride...................7-16
Turning your ATV ...............................7-22
Climbing uphill....................................7-24
Riding downhill ...................................7-30
Crossing a slope.................................7-32
Crossing through shallow water .........7-34
Riding over rough terrain....................7-36
Sliding and skidding ...........................7-38
What to do if .......................................7-40
What to do..........................................7-40
OPERATION............................................6-1
Starting a cold engine...........................6-1
Starting a warm engine ........................6-3
Warming up..........................................6-3
Drive select lever operation and
6
reverse driving....................................6-4
Engine break-in ....................................6-6
Download from Www.Somanuals.com. All Manuals Search And Download.
PERIODIC MAINTENANCE AND
Brake lever lubrication........................8-29
Knuckle shaft, lower arms and
8
ADJUSTMENT.........................................8-1
Owner’s manual and tool kit.................8-1
Periodic maintenance/Lubrication ........8-3
Engine oil..............................................8-5
Transmission oil ...................................8-7
Spark plug inspection...........................8-9
Engine and V-bet compartment
steering shaft lubrication ..................8-29
Wheel removal ...................................8-30
Wheel installation ...............................8-30
Battery................................................8-31
Replenishing the battery fluid.............8-33
Fuse replacement...............................8-34
Replacing the headlight bulb..............8-35
Tail/brake light bulb replacement .......8-37
Headlight beam adjustment................8-38
Spark arrester cleaning ......................8-38
Troubleshooting..................................8-40
Troubleshooting chart.........................8-41
air filter element cleaning .................8-11
Idle speed adjustment ........................8-15
Valve clearance adjustment ...............8-16
Throttle lever adjustment....................8-17
Front and rear brake shoe
inspection .........................................8-18
Front brake lever free play
adjustment........................................8-19
Rear brake adjustment.......................8-23
Drive chain slack check......................8-24
Drive chain slack adjustment..............8-25
Lublicating the drive chain..................8-27
Draining the V-belt compartment........8-28
Cable inspection and lubrication ........8-28
CLEANING AND STORAGE....................9-1
A. CLEANING .......................................9-1
B. STORAGE .......................................9-3
9
SPECIFICATIONS .................................10-1
10
Download from Www.Somanuals.com. All Manuals Search And Download.
NOISE REGULATION............................11-1
11
12
13
MAINTENANCE RECORD ....................12-1
ATV LIMITED WARRANTY ...................13-1
YAMAHA EXTENDED SERVICE
(Y.E.S.)...................................................14-1
14
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00464
LOCATION OF THE WARNING AND
SPECIFICATION LABELS
t
r
q
we
1-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Read and understand all of the labels on your
machine. They contain important information for
safe and proper operation of your ATV.
1
Never remove any labels from your ATV. If a
label becomes difficult to read or comes off, a
replacement label is available from your
Yamaha dealer.
1
2
5FE-21697-01
3FA-21696-41
1-2
Download from Www.Somanuals.com. All Manuals Search And Download.
3
4
q
WARNING
NEVER ride as a
passenger.
Passengers can cause
a loss of control,
resulting in SEVERE
INJURY or DEATH.
5FE-2151H-01
5
DRIVE SELECT LEVER
8 Read owner’s manual carefully before operating.
8 ATV MUST be stopped before shifting select
lever.
8 Shifting into reverse is impossible without
applying rear brake lever.
3FA-2151E-A0
5FE-21568-01
1-3
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00925
q SAFETY INFORMATION
2
AN ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE. An ATV handles differently from
other vehicles including motorcycles and cars. A collision or rollover can occur quickly, even during
routine maneuvers such as turning and riding on hills or over obstacles, if you fail to take proper pre-
cautions.
SEVERE INJURY OR DEATH can result if you do not follow these instructions:
8 Read this manual and all labels carefully and follow the operating procedures described.
8 Never operate an ATV without proper training or instruction. Take a Training Course.
Beginners should receive training from a certified instructor. Contact an authorized ATV dealer or
call 1-800-887-2887 to find out about the training courses nearest you.
8 Always follow the age recommendation:
- A child under 16 years old should never operate an ATV with engine size greater than 90cc.
8 Never allow a child under age 16 to operate an ATV without adult supervision, and never allow con-
tinued use of an ATV by a child if he or she does not have the abilities to operate it safely.
8 Never carry a passenger on an ATV.
2-1
Download from Www.Somanuals.com. All Manuals Search And Download.
8 Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots
and streets.
8 Never operate an ATV on any public street, road or highway, even a dirt or gravel one.
8 Never operate an ATV without wearing an approved motorcycle helmet that fits properly. You
should also wear eye protection (goggles or face shield), gloves, boots, long-sleeved shirt or jacket,
and long pants.
8 Never consume alcohol or drugs before or while operating this ATV.
8 Never operate at speeds too fast for your skills or the conditions. Always go at a speed that is prop-
er for the terrain, visibility and operating conditions, and your experience.
8 Never attempt wheelies, jumps, or other stunts.
8 Always inspect your ATV each time you use it to make sure it is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in this manual.
8 Always keep both hands on the handlebars and both feet on the footboards of the ATV during oper-
ation.
8 Always go slowly and be extra careful when operating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the ATV.
2-2
Download from Www.Somanuals.com. All Manuals Search And Download.
8 Never operate on excessively rough, slippery or loose terrain until you have learned and practiced
the skills necessary to control the ATV on such terrain. Always be especially cautious on these
kinds of terrain.
8 Always follow proper procedures for turning as described in this manual. Practice turning at low
speeds before attempting to turn at faster speeds. Do not turn at excessive speed.
8 Never operate the ATV on hills too steep for the ATV or for your abilities. Practice on smaller hills
before attempting larger hills.
8 Always follow proper procedures for climbing hills as described in this manual. Check the terrain
carefully before you start up any hill. Never climb hills with excessively slippery or loose surfaces.
Shift your weight forward. Never open the throttle suddenly. Never go over the top of a hill at high
speed.
8 Always follow proper procedures for going down hills and for braking on hills as described in this
manual. Check the terrain carefully before you start down any hill. Shift your weight backward.
Never go down a hill at high speed. Avoid going down a hill at an angle that would cause the vehicle
to lean sharply to one side. Go straight down the hill where possible.
8 Always follow proper procedures for crossing the side of a hill as described in this manual. Avoid
hills with excessively slippery or loose surfaces. Shift your weight to the uphill side of the ATV.
Never attempt to turn the ATV around on any hill until you have mastered the turning technique
described in this manual on level ground. Avoid crossing the side of a steep hill if possible.
2-3
Download from Www.Somanuals.com. All Manuals Search And Download.
8 Always use proper procedures if you stall or roll backwards when climbing a hill. To avoid stalling,
maintain a steady speed when climbing a hill. If you stall or roll backwards, follow the special proce-
dure for braking described in this manual. Dismount on the uphill side or to a side if pointed straight
uphill. Turn the ATV around and remount, following the procedure described in this manual.
8 Always check for obstacles before operating in a new area.
Never attempt to operate over large obstacles, such as large rocks or fallen trees. Always follow
proper procedures when operating over obstacles as described in this manual.
8 Always be careful when skidding or sliding. Learn to safely control skidding or sliding by practicing
at low speeds and on level, smooth terrain. On extremely slippery surfaces, such as ice, go slowly
and be very cautious in order to reduce the chance of skidding or sliding out of control.
8 Never operate an ATV in fast flowing water or in water deeper than that recommended in this manu-
al. Remember that wet brakes may have reduced stopping ability. Test your brakes after leaving
water. If necessary, apply them several times to let friction dry out the linings.
8 Always be sure there are no obstacles or people behind you when you operate in reverse. When it
is safe to proceed in reverse, go slowly.
8 Always use the size and type tires specified in this manual.
Always maintain proper tire pressure as described in this manual.
8 Never modify an ATV through improper installation or use of accessories.
2-4
Download from Www.Somanuals.com. All Manuals Search And Download.
8 Never exceed the stated load capacity for an ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow instructions in this manual for carrying cargo. Allow
greater distance for braking.
FOR MORE INFORMATION ABOUT ATV SAFETY , call the Consumer Products Safety Commission
at 1-800-638-2772, or the ATV Distributor’s Safety Hotline at 1-800-852-5344.
2-5
Download from Www.Somanuals.com. All Manuals Search And Download.
q
Otherwise, fuel may leak out of the carbu-
retor or fuel tank.
WARNING
POTENTIAL HAZARD
WHAT CAN HAPPEN
Improper handling of gasoline.
WHAT CAN HAPPEN
Gasoline is poisonous and can cause
injuries.
Gasoline can catch fire and you could be
burned.
HOW TO AVOID THE HAZARD
If you should swallow some gasoline or
inhale a lot of gasoline vapor, or get some
gasoline in your eyes, see your doctor
immediately.
If gasoline spills on your skin, wash with
soap and water. If gasoline spills on your
clothing, change your clothes.
HOW TO AVOID THE HAZARD
Always turn off the engine when refueling.
Do not refuel right after the engine has
been running and is still very hot.
Do not spill gasoline on the engine or
exhaust pipe/muffler when refueling.
Never refuel while smoking, or while in the
vicinity of sparks, open flames, or other
sources of ignition such as the pilot lights
of water heaters and clothes dryers.
When transporting the ATV in another
vehicle, be sure it is kept upright and that
the fuel cock is in the “OFF” position.
2-6
Download from Www.Somanuals.com. All Manuals Search And Download.
q
WARNING
POTENTIAL HAZARD
Starting or running the engine in a closed
area.
WHAT CAN HAPPEN
Exhaust fumes are poisonous and may
cause loss of consciousness and death
within a short time.
HOW TO AVOID THE HAZARD
Always operate your ATV in an area with
adequate ventilation.
2-7
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00032
DESCRIPTION AND MACHINE IDENTIFICATION
i
o !
0
t
yu
q
w
e r
!
1
1. Seat
11. Footboard
2. Drive select lever
3. Headlight
12. Rear brake lever
13. Parking brake
!
!
!
4
!
!
4. Front cover
14. Reverse indicator light
15. Neutral indicator light
16. Front brake lever
17. Throttle lever
5. Front wheel
6. Starter (choke)
7. Fuel cock
8. Rear wheel
18. Main switch
9. Tail/brake light
10. Spark arrester
19. Fuel tank cap
20. Handlebar switches
NOTE:
The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
@
0
!
!
9
!
8
3-1
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00600
EBU00035
Identification number records
Key identification number
Record the key identification number, vehicle
identification number and model label informa-
tion in the spaces provided for assistance when
ordering spare parts from a Yamaha dealer or
for reference in case the vehicle is stolen.
1. KEY IDENTIFICATION NUMBER:
The key identification number is stamped on the
key as shown in the following illustration. This
number can be used for ordering a new key.
3
q
2. VEHICLE IDENTIFICATION NUMBER:
3. MODEL LABEL INFORMATION:
1. Key identification number
1
6
3-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00036
EBU00787
Vehicle identification number
The vehicle identification number is stamped
into the frame.
Model label
The model label is affixed to the location in the
illustration. Record the information on this label
in the space provided. This information will be
needed to order spare parts from your Yamaha
dealer.
q
q
1. Vehicle identification number
NOTE:
The vehicle identification number is used to
1. Model label
identify your machine.
3-3
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00039
CONTROL FUNCTIONS
OFF
ON
w
Indicates a potential hazard that could result
in serious injury or death.
4
EBU00041
Main switch
Functions of the respective switch positions are
as follows:
ON:
Engine can be started only at this position and
the headlight and taillight come on when the
light switch is on.
OFF:
All electrical circuits are switched off. The key
can be removed in this position.
4-1
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00043
EBU00053
Indicator lights
Handlebar switches
e
w q
w
q
e
1. Main switch
2. Reverse indicator light “REVERSE”
3. Neutral lindicator light “NEUTRAL“
1. Engine stop switch “ENG. STOP“
2. Lights switch “LIGHTS”
3. Start switch “START“
EBU00044
EBU00054
Reverse indicator light “REVERSE”
This indicator light comes on when the transmis-
sion is in reverse.
Engine stop switch “ENG. STOP”
Make sure that the engine stop switch is in the
"RUN" position. The engine stop switch controls
ignition and can be used at all times to stop the
engine, especially in an emergency. The engine
will not start or run when the engine stop switch
is turned to “OFF”.
EBU00045
Neutral indicator light “NEUTRAL”
This indicator light comes on when the transmis-
sion is in neutral.
4-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00056
EBU01128
Start switch “START”
Light switch "LIGHTS"
The starter motor cranks the engine when this
switch is pushed.
Turn the switch to the "LO" position to switch on
the low beam and the tail/brake light.
Turn the switch to the "HI" position to switch on
the high beam and the tail/brake light.
Turn the switch to the "OFF" position to switch
off the headlight and the tail/brake light.
cC
See starting instructions prior to starting
engine (see page 6-1 for details).
NOTE:
NOTE:
The headlight and the tail/brake light can be
turned on only when the engine is started.
If the starter switch is pushed with the main
switch “ON” and the engine stop switch “OFF”,
the starter motor will be activated but the engine
will not start. To start the engine, be sure to
position the engine stop switch at “RUN”.
4-3
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00062
Throttle lever
Before starting the engine, check the throttle to
be sure it is operating smoothly. Make sure it
returns to the idle position as soon as the lever
is released.
Once the engine is running, movement of the
throttle lever will increase the engine speed.
Regulate the speed of the machine by varying
the throttle position. Because the throttle is
spring-loaded, the machine will decelerate, and
the engine will return to an idle any time the
hand is removed from the throttle lever.
q
WARNING
POTENTIAL HAZARD
Malfunction of throttle.
WHAT CAN HAPPEN
The throttle could be hard to operate, mak-
ing it difficult to speed up or slow down
when you need to. This could cause an
accident.
HOW TO AVOID THE HAZARD
Check the operation of the throttle lever
before you start the engine. If it does not
work smoothly, check for the cause.
Correct the problem before riding the ATV.
Consult a Yamaha dealer if you can't find
or solve the problem yourself.
q
1. Throttle lever
4-4
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00066
Speed limiter
q
WARNING
The speed limiter keeps the throttle from fully
opening, even when the throttle lever is pushed
to the maximum. Screwing in the adjuster limits
the maximum engine power available and
decreases the maximum speed of the ATV.
POTENTIAL HAZARD
Improper adjustment of the speed limiter
and throttle.
WHAT CAN HAPPEN
The throttle cable could be damaged.
Improper throttle operation could result.
You could lose control, have an accident
or be injured.
w
HOW TO AVOID THE HAZARD
Do not turn the speed adjuster out more
than 12 mm (0.47 in). Always make sure the
throttle lever free play is adjusted to 3.0 ~
5.0 mm (0.12 ~ 0.20 in). See page 8-17.
q
a
1. Adjuster
2. Locknut
a. 12 mm (0.47 in)
4-5
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00070
EBU00072
Front brake lever
Rear brake lever
The front brake lever is located on the right han-
dlebar. Pull it toward the handlebar to apply the
front brake.
The rear brake lever is located on the left han-
dlebar. Pull it toward the handlebar to apply the
rear brake.
q
q
1. Front brake lever
1. Rear brake lever
4-6
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00074
Parking brake
q
WARNING
Use the parking brake when you have to start
the engine or park the machine, especially on a
slope. Apply the rear brake lever and push down
the lock plate to apply the parking brake.
Squeeze the rear brake lever to release the
parking brake.
POTENTIAL HAZARD
Improper use of the parking brake.
WHAT CAN HAPPEN
The ATV could start moving unexpectedly
if the parking brake is not applied before
starting the engine. This could cause loss
of control or a collision.
The brake could overheat if you ride the
ATV without releasing the parking brake.
You could lose braking performance
which could cause an accident. You could
also wear out the brakes prematurely.
HOW TO AVOID THE HAZARD
q
Always set the parking brake before start-
ing the engine.
1. Lock plate
Always be sure you have released the
parking brake before you begin to ride.
4-7
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00085
EBU00092
Drive select lever
Fuel tank cap
The drive select lever is used for driving the
machine either forward or in reverse. Refer to
page 6-4 for drive select lever operation.
Remove the fuel tank cap by turning it counter-
clockwise.
q
w
e
q
a
a. Drive select lever
2. Forward
1. Neutral
3. Reverse
1. Fuel tank cap
4-8
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00093
Fuel cock
RES
The fuel cock supplies fuel from the fuel tank to
the carburetor.
The fuel cock has three positions.
OFF: With the lever in this position fuel will not
flow. Always turn the lever to this position
when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
OFF
ON
RES: This indicates reserve. If you run out of
fuel while riding, turn the lever to this
position. THEN FILL THE FUEL TANK
AT THE FIRST OPPORTUNITY. After
refuelling, return the fuel cock lever to the
“ON” position.
4-9
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00094
EBU00567
Starter (choke)
Seat
Starting a cold engine requires a richer air-fuel
mixture. A separate starter circuit supplies this
mixture.
To remove the seat, pull the seat lock lever
upward and pull up the seat at the rear.
Move in direction a to turn on the starter
(choke).
Move in direction b to turn off the starter
(choke).
Refer to “Starting a cold engine” for proper oper-
ation. (See page 6-1.)
q
A
b
1. Seat lock lever
a
e
w
q
1. Fully open
3. Closed
2. Half open
A. Starter (choke)
4-10
Download from Www.Somanuals.com. All Manuals Search And Download.
To install the seat, insert the projections on the
front of the seat into the seat holders and push
down on the seat at the rear.
NOTE:
Make sure that the seat is securely fitted.
EBU00112
w
Indicates a potential hazard that could result
in serious injury or death.
4-11
Download from Www.Somanuals.com. All Manuals Search And Download.
PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM
ROUTINE
PAGE
• Check operation, condition and free play.
• Adjust if necessary.
Brakes
Fuel
5-2 – 5-3, 8-18 – 8-23
• Check fuel level.
• Fill with fuel if necessary.
5-3–5-4
Engine oil and
transmission oil
• Check oil level.
• Fill with oil if necessary.
5-5, 8-5 – 8-9
5-6, 8-24 – 8-26
• Check chain slack and condition.
• Adjust if necessary.
Drive chain
Throttle
• Check for proper throttle cable operation.
• Check tire pressure, wear and damage.
• Check all fitting and fasteners.
5-6
5-7 – 5-9, 8-30
5-6
Wheels and tires
Fittings and fasteners
• Check fluid level.
• Fill with distilled water if necessary.
Battery
Lights
5-6, 8-31 – 8-33
5-6, 8-34 – 8-38
• Check for proper operation.
5-1
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00472
Front and rear brakes
1. Brake levers
q
WARNING
POTENTIAL HAZARD
Check for correct free play in the brake
levers. If the free play is incorrect, adjust it.
(See pages 8-19 – 8-23.)
Failure to inspect the ATV before operat-
ing.
Failure to properly maintain the ATV.
5
WHAT CAN HAPPEN
Check operation of the levers. They should
move smoothly and there should be a firm
feeling when the brake is applied. If not,
have the machine inspected by a Yamaha
dealer.
Increases the possibility of an accident or
equipment damage.
HOW TO AVOID THE HAZARD
Always inspect your ATV each time you
use it to make sure the ATV is in safe
operating condition.
Always follow the inspection and mainte-
nance procedures and schedules
described in the Owner’s Manual.
2. Brake operation
Test the brakes at slow speed after starting
out to make sure they are working properly.
If the brakes do not provide proper braking
performance, inspect the brakes for wear.
(See page 8-18.)
5-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01085
Fuel
q
WARNING
Make sure there is sufficient gasoline in the
tank.
POTENTIAL HAZARD
Riding with improperly operating brakes.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
Always check the brakes at the start of
every ride. Do not ride the ATV if you find
any problem with the brakes. If a problem
cannot be corrected by the adjustment
procedures provided in this manual, have
the ATV inspected by a Yamaha dealer.
1. Filler tube
2. Fuel level
Recommended fuel:
UNLEADED GASOLINE ONLY
Fuel tank capacity:
Total: 7L (1.5
4
Imp gal, 1.8 US gal)
Reserve: 1.3L (0.29 Imp gal, 0.34 US gal)
5-3
Download from Www.Somanuals.com. All Manuals Search And Download.
cC
q
WARNING
Use only unleaded gasoline. The use of lead-
ed gasoline will cause severe damage to
internal engine parts, such as the valves and
piston rings, as well as to the exhaust
system.
POTENTIAL HAZARD
Improper care when refueling.
WHAT CAN HAPPEN
Fuel can spill, which can cause a fire and
severe injury.
Your Yamaha engine has been designed to use
regular unleaded gasoline with a pump octane
number ([R+M]/2) of 86 or higher, or research
octane number of 91 or higher. If knocking or
pinging occurs, use a different brand of gasoline
or premium unleaded fuel. Unleaded fuel will
give you longer spark plug life and reduced
maintenance cost.
Fuel expands when it heats up. If the fuel
tank is overfilled, fuel could spill out due
to heat from the engine or the sun.
HOW TO AVOID THE HAZARD
Do not overfill the fuel tank. Be careful not
to spill fuel, especially on the engine or
exhaust pipe. Wipe up any spilled fuel
immediately. Be sure the fuel tank cap is
closed securely.
Gasohol
There are two types of gasohol; gasohol con-
taining ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10%. Gasohol
containing methanol is not recommended by
Yamaha because it may cause fuel system
damage or vehicle performance problems.
Do not refuel right after the engine has
been running and is still very hot.
5-4
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01116
Engine and transmission oil
Make sure the engine and transmission oil is at
the specified level. Add oil as necessary. (See
page 8-5.)
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor oils
(often labeled “ ENERGY CONSERVING II ”)
contain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting
in reduced component life and poor engine per-
formance.
Recommended oil:
0°
10°
30°
YAMALUBE 4 (20W40) or SAE20W40
YAMALUBE 4 (10W30) or SAE10W30
SAE 5W30
–20° –10° 50°C
50°
70°
90° 110°
130°F
Engine oil quantity:
Periodic oil change:
10°
20°
30°
0°
40°
1.25 L (1.10 Imp qt, 1.32 US qt)
Total amount:
Recommended engine/transmission oil clas-
sification:
1.45 L (1.28 Imp qt, 1.53 US qt)
API Service SE, SF, SG type or higher
Transmission oil quantity:
Total amount:
0.6 L (0.53 Imp qt, 0.63 US qt)
5-5
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00498
EBU00803
Chain
Lights
Check the general condition of the chain and
check the chain slack before every ride.
Lubricate and adjust the chain as necessary.
(See pages 8-22 – 8-25 for details.)
Check the headlight and tail/brake light to make
sure they are in working condition. Repair as
necessary for proper operation.
EBU01082
EBU01083
Switches
Throttle lever
Check the operation of all switches. Repair as
necessary for proper operation.
Check to see that the throttle lever operates cor-
rectly. It must open smoothly and spring back to
the idle position when released. Have a Yamaha
dealer repair as necessary for proper operation.
EBU00499
Battery
Check fluid level and fill if necessary. Use only
distilled water if refilling is necessary. (See pages
8-29 – 8-31.)
EBU01162
Fittings and fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the machine to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.
5-6
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00157
Tires
2. The tires should be set to the recom-
mended pressure:
q
WARNING
8 Recommended tire pressure
Front 20 kPa (0.20 kgf/cm2, 2.9 psi)
Rear 25 kPa (0.25 kgf/cm2, 3.6 psi)
8 Check and adjust tire pressures when
the tires are cold.
POTENTIAL HAZARD
Operating this ATV with improper tires, or
with improper or uneven tire pressure.
WHAT CAN HAPPEN
8 Tire pressures must be equal on both
sides.
3. Tire pressure below the minimum
specified could cause the tire to dis-
lodge from the rim under severe riding
conditions.
Use of improper tires on this ATV, or oper-
ation of this ATV with improper or uneven
tire pressure, may cause loss of control,
increasing your risk of accident.
HOW TO AVOID THE HAZARD
1. The tires listed below have been
approved by Yamaha Motor Co., Ltd.
for this model. Other tire combinations
are not recommended.
The following are minimums:
Front 17 kPa (0.17 kgf/cm2, 2.5 psi)
Rear 22 kPa (0.22 kgf/cm2, 3.2 psi)
Manufacturer
DUNLOP
Size
Type
Front
Rear
AT20 × 7 - 8
KT536A
DUNLOP
AT22 × 10 - 8 KT537A
5-7
Download from Www.Somanuals.com. All Manuals Search And Download.
Set pressure with tires cold.
Set tire pressures to the following specifications:
4. Use no more than the following pres-
sures when seating the tire beads.
Front 250 kPa (2.5 kgf/cm2, 36 psi)
Rear 250 kPa (2.5 kgf/cm2, 36 psi)
Higher pressures may cause the tire to
burst. Inflate the tires very slowly and
carefully. Fast inflation could cause
the tire to burst.
Recommended
Minimum
Maximum
pressure
20 kPa
(0.20 kgf/cm2,
2.9 psi)
17 kPa
(0.17 kgf/cm2,
2.5 psi)
23 kPa
(0.23 kgf/cm2,
3.2 psi)
Front
Rear
25 kPa
(0.25 kgf/cm2,
3.6 psi)
22 kPa
(0.22 kgf/cm2,
3.2 psi)
28 kPa
(0.28 kgf/cm2,
4.0 psi)
EBU00159
How to measure tire pressure
Use the low-pressure tire gauge.
q
NOTE:
The low-pressure tire gauge is included as stan-
dard equipment. Make two measurements of the
tire pressure and use the second reading. Dust
or dirt in the gauge could cause the first reading
to be incorrect.
1. Low-pressure tire gauge
5-8
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00160
Tire wear limit
When the tire groove decreases to 3 mm
(0.12 in) due to wear, replace the tire.
a
a. 3 mm (0.12 in)
5-9
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00161
EBU00509
Starting a cold engine
OPERATION
q
WARNING
w
Indicates a potential hazard that could result
in serious injury or death.
POTENTIAL HAZARD
Freezing control cables in cold weather.
WHAT CAN HAPPEN
q
WARNING
You could be unable to control the ATV,
which could lead to an accident or colli-
sion.
6
POTENTIAL HAZARD
Operating ATV without being familiar with
all controls.
HOW TO AVOID THE HAZARD
When riding in cold weather, always make
sure all control cables work smoothly
before you begin riding.
WHAT CAN HAPPEN
Loss of control, which could cause an
accident or injury.
HOW TO AVOID THE HAZARD
1. Set the parking brake.
Read the Owner’s Manual carefully. If
there is a control or function you do not
understand, ask your Yamaha dealer.
2. Turn the fuel cock to “ON”.
3. Turn the main switch to “ON” and the engine
stop switch to “RUN”.
4. Shift the drive select lever to neutral.
6-1
Download from Www.Somanuals.com. All Manuals Search And Download.
NOTE:
AMBIENT TEMP./STARTER (CHOKE) POSITION
8 The engine can be started only when the
drive select lever is in neutral.
8 When the drive select lever is in neutral, the
neutral indicator light should come on. If the
light does not come on, ask a Yamaha dealer
to inspect it.
5. Use the starter (choke) in reference to the
figure:
Position 1: Cold engine start-
ambient temperature below 5°C
(40°F).
1. Fully open
3. Closed
2. Half open
a. Starter (choke)
Position 2: Cold engine start-
ambient temperature at 0°C (30°F)
– 30°C (90°F) and warming up
position.
6. Completely close the throttle lever and start
the engine by pushing the start switch.
Position 3: Cold engine start-
ambient temperature above 25°C
(80°F) and warm engine start posi-
tion.
6-2
Download from Www.Somanuals.com. All Manuals Search And Download.
NOTE:
cC
If the engine fails to start, release the start
switch, then push the start switch again. Pause
a few seconds before the next attempt. Each
cranking should be as short as possible to pre-
serve battery energy. Do not crank the engine
more than 10 seconds on each attempt.
See the “Engine break-in” section prior to
operating engine for the first time.
EBU00180
Starting a warm engine
To start a warm engine, refer to the “Starting a
cold engine” section. The starter (choke) should
not be used. The throttle should be opened
slightly.
7. If the engine is started with the starter
(choke) in position 1, the starter (choke)
should be returned to position 2 to warm up
the engine. If the engine is started with the
starter (choke) in position 2, keep the
starter (choke) in this position to warm up
the engine.
8. Continue warming up the engine until it idles
smoothly and return the starter (choke) to
position 3 before riding.
EBU00182
Warming up
To get maximum engine life, always warm up
the engine before starting off. Never accelerate
hard with a cold engine! To see whether or not
the engine is warm, check if it responds to the
throttle normally with the starter (choke) turned
off.
6-3
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01152
Drive select lever operation and reverse
driving
q
w
e
cC
Before shifting, stop the machine and return
the throttle lever to its closed position, other-
wise, the transmission may be damaged.
a
Shifting: forward
a. Drive select lever
2. Forward ”F”
1. Neutral ”N”
3. Reverse ”R”
1. Bring the machine to a complete stop and
return the throttle lever to the closed posi-
tion.
Shifting: reverse
1. Bring the machine to a complete stop and
return the throttle lever to the closed posi-
tion.
2. Shift the gear from neutral to forward and
vice versa by moving the drive select lever
along the shift guide.
2. Apply the parking brake.
NOTE:
3. Shift the gear from neutral to reverse and
vice versa by moving the drive select lever
along the shift guide.
Make sure that the drive select lever is com-
pletely shifted into position.
3. Open the throttle lever gradually.
6-4
Download from Www.Somanuals.com. All Manuals Search And Download.
NOTE:
q
WARNING
When in reverse, the reverse indicator light
should be on. If the light does not come on, ask
a Yamaha dealer to inspect the ATV.
POTENTIAL HAZARD
Improper operation in reverse.
WHAT CAN HAPPEN
4. Check behind for people or obstacles, then
release the parking brake.
You could hit an obstacle or person
behind you, resulting in serious injury.
5. Open the throttle lever gradually and contin-
ue to watch to the rear while backing.
HOW TO AVOID THE HAZARD
When you shift into reverse, make sure
there are no obstacles or people behind
you. When it is safe to proceed, go slowly.
NOTE:
If the drive select lever is shifted into reverse
while the engine is running, the engine will stop
unless the parking brake or rear brake lever is
applied.
6-5
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00209
Engine break-in
Each full throttle acceleration sequence should
be followed with a substantial rest period for the
engine by cruising at lower r/min so the engine
can rid itself of the temporary build up of heat.
If any abnormality is noticed during this period,
consult a Yamaha dealer.
There is never a more important period in the
life of your machine than the period between
zero and 20 hours.
For this reason, we ask that you carefully read
the following material. Because the engine is
brand new, you must not put an excessive load
on it for the first several hours of running. During
the first 20 hours, the various parts in the engine
wear and polish themselves to the correct oper-
ating clearances.
During this period, prolonged full throttle opera-
tion or any condition which might result in exces-
sive engine heating must be avoided. However,
momentary (2 – 3 seconds maximum) full throt-
tle operation under load does not harm the
engine.
1. 0 – 10 hours:
Avoid continuous operation above half throt-
tle. Allow a cooling off period of five to ten
minutes after every hour of operation. Vary
the speed of the machine from time to time.
Do not operate it at one set throttle position.
6-6
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00211
2. 10 – 20 hours:
Parking
Avoid prolonged operation above 3/4 throt-
tle. Rev the machine freely through the
gears but do not use full throttle at any time.
3. After break-in:
When parking, stop the engine and shift into
neutral. Turn the fuel cock to “OFF” and apply
the parking brake.
Avoid prolonged full throttle operation. Vary
speeds occasionally.
q
1. Lock plate
6-7
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00215
Parking on a slope
1. Bring the machine to a stop by applying the
brakes.
2. Stop the engine.
q
WARNING
3. With the rear brake applied, apply the park-
ing brake.
POTENTIAL HAZARD
Parking on a hill or other incline.
WHAT CAN HAPPEN
The ATV could roll out of control, increas-
ing the chance of an accident.
HOW TO AVOID THE HAZARD
Avoid parking on hills or other inclines. If
you must park on an incline, place the
machine transversely across the incline,
apply the parking brake, and block the
front and rear wheels with rocks or other
objects.
Do not park the ATV at all on hills that are
so steep you could not walk up them easi-
ly.
6-8
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00221
Accessories and loading
8 Do not mount an accessory where it could
interfere with your ability to control the ATV.
Examples include (but are not limited to) a
heavy or bulky object attached to the handle-
bars which could make steering difficult, an
accessory that limits your ability to move
around on the seat, or one that limits your
view.
EBU00222
Accessories
Accessories can affect the handling and control
of your ATV. Keep the following in mind when
considering an accessory or operating an ATV
which has accessories.
8 Choose only accessories designed for your
ATV. Your Yamaha dealer has a variety of
genuine Yamaha accessories. Other acces-
sories may also be available on the market.
However, it is not possible for Yamaha to test
all non-Yamaha accessories, nor have any
control over the quality or suitability of them.
Choose a genuine Yamaha accessory, or one
that is equivalent in design and quality.
8 Accessories should be rigidly and securely
mounted. An accessory which can shift posi-
tion or come off while you are riding could
affect your ability to control the ATV.
8 Use extra caution when riding an ATV with
accessories. The ATV may handle differently
than it does without accessories.
6-9
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00585
8 Tie down cargo securely to the carriers. Make
sure cargo in the trailer cannot move around.
A shifting load can cause an accident.
8 Make sure the load does not interfere with
controls or your ability to see where you are
going.
8 Ride more slowly than you would without a
load. The more weight you carry, the slower
you should go.
Loading
As originally equipped, this ATV is not designed
to carry cargo or tow a trailer. If you choose to
add accessories so that you can carry cargo or
tow a trailer, you must use common sense and
good judgment. Keep the following points in
mind:
8 Never exceed the weight limits shown. An
overloaded ATV can be unstable.
8 Allow more braking distance. A heavier vehi-
cle takes longer to stop.
8 Avoid making sharp turns unless at very slow
speeds.
8 Avoid hills and rough terrain. Choose terrain
carefully. Added weight affects the stability
and handling of the ATV.
MAXIMUM LOADING LIMIT
Vehicle loading limit (total weight of
cargo, rider and accessories):
100 kg (220 lb)
8 Load cargo on the carriers as close to the
center of the vehicle as possible. Put cargo at
the rear of the front carrier and at the front of
the rear carrier. Center the load from side to
side.
6-10
Download from Www.Somanuals.com. All Manuals Search And Download.
q
WARNING
POTENTIAL HAZARD
Overloading this ATV or carrying or tow-
ing cargo improperly.
WHAT CAN HAPPEN
Could cause changes in vehicle handling
which could lead to an accident.
HOW TO AVOID THE HAZARD
Never exceed the stated load capacity for
this ATV.
Cargo should be properly distributed and
securely attached.
Reduce speed when carrying cargo or
pulling a trailer. Allow greater distance for
braking.
6-11
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00893
w
Indicates a potential hazard that could result
in serious injury or death.
6-12
Download from Www.Somanuals.com. All Manuals Search And Download.
Riding
Your
ATV
7
7-1
Download from Www.Somanuals.com. All Manuals Search And Download.
7-2
Download from Www.Somanuals.com. All Manuals Search And Download.
w
Indicates a potential hazard that could result
in serious injury or death.
GETTING TO KNOW YOUR ATV
this Owner's Manual completely and understand
the operation of the controls. Pay particular
attention to the safety information on pages 2-1
– 2-7. Please also read all caution and warning
labels on your ATV.
This ATV is for recreation and utility use. This
section, Riding your ATV, provides general ATV
riding instructions for recreational riding. The
skills and techniques described in this section,
however, are appropriate for all types of riding.
Riding your ATV requires special skills acquired
through practice over a period of time. Take the
time to learn the basic techniques well before
attempting more difficult maneuvers.
Riding your new ATV can be a very enjoyable
activity, providing you with hours of pleasure.
But it is essential to familiarize yourself with the
operation of the ATV to achieve the skill neces-
sary to enjoy riding safely.
Before you begin to ride, be sure you have read
7-3
Download from Www.Somanuals.com. All Manuals Search And Download.
RIDE WITH CARE AND GOOD JUDGEMENT
HOW TO AVOID THE HAZARD
Beginning and inexperienced operators
should complete the certified training
course offered by Yamaha. They should
then regularly practice the skills learned in
the course and the operating techniques
described in this Owner's Manual.
For more information about the training
course, contact an authorized ATV dealer
or call 1-800-887-2887.
Get training if you are inexperienced.
Beginners should get training from a certified
instructor.
Become familiar with this ATV at slow speeds
first, even if you are an experienced operator.
Do not attempt to operate at maximum perfor-
mance until you are totally familiar with the
ATV's handling and performance characteristics.
q
WARNING
POTENTIAL HAZARD
Riding your ATV requires skills acquired
through practice over a period of time.
Take the time to learn the basic techniques well
before attempting more difficult maneuvers.
Operating this ATV without proper instruc-
tion.
WHAT CAN HAPPEN
The risk of an accident is greatly increased
if the operator does not know how to oper-
ate the ATV properly in different situations
and on different types of terrain.
7-4
Download from Www.Somanuals.com. All Manuals Search And Download.
Not recommended for children under 16
years of age.
q
WARNING
POTENTIAL HAZARD
Failure to follow the age recommendations
for this ATV.
WHAT CAN HAPPEN
Use by children of ATVs that are not rec-
ommended for their age can lead to severe
injury or death of the child.
HOW TO AVOID THE HAZARD
A child under 16 should never operate an
ATV with engine size greater than 90cc.
7-5
Download from Www.Somanuals.com. All Manuals Search And Download.
This ATV is designed to carry operator only -
passengers prohibited.
q
WARNING
POTENTIAL HAZARD
Carrying a passenger on this ATV.
WHAT CAN HAPPEN
Greatly reduces your ability to balance
and control this ATV. Could cause an acci-
dent, resulting in harm to you and/or your
passenger.
HOW TO AVOID THE HAZARD
Never carry a passenger. The long seat is
to allow the operator to shift position as
needed during operation. It is not for car-
rying passengers.
7-6
Download from Www.Somanuals.com. All Manuals Search And Download.
Apparel
Operating without protective clothing
increases your chances of severe injury in
the event of an accident.
q
WARNING
POTENTIAL HAZARD
HOW TO AVOID THE HAZARD
Operating this ATV without wearing an
approved motorcycle helmet, eye protec-
tion and protective clothing.
Always wear an approved motorcycle hel-
met that fits properly.
You should also wear:
eye protection(goggles or face shield)
gloves
WHAT CAN HAPPEN
Operating without an
approved motorcy-
cle helmet increases
boots
Protective
clothing
long-sleeved shirt or jacket
long pants
Goggles
your chances of a
severe head injury or
death in the event of
an accident.
Operating without
eye protection can
result in an accident
and increases your
chances of a severe
injury in the event of
an accident.
Helmet
Gloves
Boots
7-7
Download from Www.Somanuals.com. All Manuals Search And Download.
Do not operate after consuming alcohol or
drugs.
q
WARNING
POTENTIAL HAZARD
Operator's performance capability is reduced by
the influence of alcohol or drugs.
Operating this ATV after consuming alco-
hol or drugs.
WHAT CAN HAPPEN
Could seriously affect your judgment.
Could cause you to react more slowly.
Could affect your balance and perception.
Could result in an accident.
HOW TO AVOID THE HAZARD
Never consume alcohol or drugs before or
while driving this ATV.
7-8
Download from Www.Somanuals.com. All Manuals Search And Download.
Pre-operation checks
q
WARNING
Always perform the pre-operation checks listed
on page 5-1 before riding for safety and proper
care of the ATV.
POTENTIAL HAZARD
Operating this ATV with improper tires, or
with improper or uneven tire pressure.
WHAT CAN HAPPEN
q
WARNING
Use of improper tires on this ATV, or oper-
ation of this ATV with improper or uneven
tire pressure, may cause loss of control,
increasing your risk of an accident.
POTENTIAL HAZARD
Failure to inspect the ATV before operat-
ing.
Failure to properly maintain the ATV.
HOW TO AVOID THE HAZARD
WHAT CAN HAPPEN
Always use the size and type tires speci-
fied in the Owner's Manual for this vehicle
on pages 5-7 – 5-8.
Increases the possibility of an accident or
equipment damage.
HOW TO AVOID THE HAZARD
Always maintain proper tire pressure as
described in the Owner's Manual on page
5-8.
Always inspect your ATV each time you
use it to make sure the ATV is in safe
operating condition.
Always follow the inspection and mainte-
nance procedures and schedules
described in the Owner's Manual.
7-9
Download from Www.Somanuals.com. All Manuals Search And Download.
Speed limiter
w
For riders inexperienced with this model, this
model is equipped with a speed limiter in the
throttle lever housing. The speed limiter limits
the power and top speed of the ATV. Turning
the screw in decreases top speed, and turning it
out increases top speed.
Indicates a potential hazard that could result
in serious injury or death.
Do not operate at speeds too fast for your
skills or the conditions
q
WARNING
w
POTENTIAL HAZARD
Operating this ATV at speeds too fast for
your skills or the conditions.
WHAT CAN HAPPEN
q
Increases your chances of losing control
of the ATV, which can result in an acci-
dent.
1. Adjuster
2. Locknut
HOW TO AVOID THE HAZARD
Always go at a speed that is proper for the
terrain, visibility and operating conditions,
and your experience.
7-10
Download from Www.Somanuals.com. All Manuals Search And Download.
Loading and accessories
q
WARNING
Use extra caution when riding the ATV with
additional loads, such as accessories or cargo.
The ATV's handling may be adversely affected.
Reduce your speed when adding additional
loads.
POTENTIAL HAZARD
Overloading this ATV or carrying or tow-
ing cargo improperly.
WHAT CAN HAPPEN
Could cause changes in vehicle handling
which could lead to an accident.
MAXIMUM LOADING LIMIT
Vehicle loading limit
(total weight of cargo, rider and
accessories):
HOW TO AVOID THE HAZARD
Never exceed the stated load capacity for
this ATV.
100 kg (220 lb)
Cargo should be properly distributed and
securely attached.
Reduce speed when carrying cargo or
pulling a trailer. Allow greater distance for
braking.
Always follow the instructions in your
Owner's Manual for carrying cargo or
pulling a trailer.
7-11
Download from Www.Somanuals.com. All Manuals Search And Download.
During operation
q
WARNING
Always keep your feet on the footboards during
operation. Otherwise your feet may contact the
rear wheels.
POTENTIAL HAZARD
Removing hands from handlebars or feet
from footboards during operation.
WHAT CAN HAPPEN
Removing even one hand or foot can
reduce your ability to control the ATV or
could cause you to lose your balance and
fall off of the ATV. If you remove a foot
from a footboard, your foot or leg may
come into contact with the rear wheels,
which could injure you or cause an acci-
dent.
HOW TO AVOID THE HAZARD
Always keep both hands on the handle-
bars and both feet on the footboards of
your ATV during operation.
7-12
Download from Www.Somanuals.com. All Manuals Search And Download.
Avoid wheelies and jumping. You may lose con-
trol of the ATV or overturn.
q
WARNING
POTENTIAL HAZARD
Attempting wheelies, jumps, and other
stunts.
WHAT CAN HAPPEN
Increases the chance of an accident,
including an overturn.
HOW TO AVOID THE HAZARD
Never attempt stunts, such as wheelies or
jumps. Don't try to show off.
7-13
Download from Www.Somanuals.com. All Manuals Search And Download.
Modifications
q
WARNING
POTENTIAL HAZARD
Operating this ATV with improper modifi-
cations.
WHAT CAN HAPPEN
Improper installation of accessories or
modification of this vehicle may cause
changes in handling which in some situa-
tions could lead to an accident.
HOW TO AVOID THE HAZARD
Never modify this ATV through improper
installation or use of accessories. All parts
and accessories added to this vehicle
should be genuine Yamaha or equivalent
components designed for use on this ATV
and should be installed and used accord-
ing to instructions. If you have questions,
consult an authorized ATV dealer.
7-14
Download from Www.Somanuals.com. All Manuals Search And Download.
Exhaust system
HOW TO AVOID THE HAZARD
The exhaust system on the ATV is very hot dur-
ing and following operation. To prevent burns,
avoid touching the exhaust system. Park the
ATV in a place where pedestrians or children
are not likely to touch it.
Do not operate, idle, or park the ATV in dry
grass or other dry ground cover.
Keep the engine area free of dry grass,
brush, or other combustible material.
Do not touch the hot exhaust system.
Do not park the ATV in a place where oth-
ers might be likely to touch it.
q
WARNING
POTENTIAL HAZARD
Hot exhaust system.
WHAT CAN HAPPEN
Dry grass or brush or other combustible
material accumulated around the engine
area could catch fire.
Someone touching the exhaust system
during or after operation could be burned.
7-15
Download from Www.Somanuals.com. All Manuals Search And Download.
BE CAREFUL WHERE YOU RIDE
This ATV is designed for off-road use only.
Riding on paved surfaces can cause loss of con-
trol.
q
WARNING
POTENTIAL HAZARD
Operating this ATV on paved surfaces.
WHAT CAN HAPPEN
ATVs are designed for off-road use only.
Paved surfaces may seriously affect han-
dling and control of the ATV, and may
cause the vehicle to go out of control.
HOW TO AVOID THE HAZARD
Always avoid paved surfaces, including
sidewalks, driveways, parking lots and
streets.
7-16
Download from Www.Somanuals.com. All Manuals Search And Download.
Do not ride on any public road, street, or high-
way.
Riding on public roads can result in collisions
with other vehicles.
q
WARNING
POTENTIAL HAZARD
Operating this ATV on public streets,
roads or highways.
WHAT CAN HAPPEN
You can collide with another vehicle.
HOW TO AVOID THE HAZARD
Never operate this ATV on any public
street, road or highway, even a dirt or
gravel one.
In many states it is illegal to operate ATVs
on public streets, roads and highways.
7-17
Download from Www.Somanuals.com. All Manuals Search And Download.
Know the terrain where you ride. Ride cautiously
in unfamiliar areas. Stay alert for holes, rocks,
or roots in the terrain, and other hidden haz-
ards which may cause the ATV to upset.
q
WARNING
POTENTIAL HAZARD
Failure to use extra care when operating
this ATV on unfamiliar terrain.
WHAT CAN HAPPEN
You can come upon hidden rocks, bumps,
or holes, without enough time to react.
Could result in the ATV overturning or
going out of control.
HOW TO AVOID THE HAZARD
Go slowly and be extra careful when oper-
ating on unfamiliar terrain.
Always be alert to changing terrain condi-
tions when operating the ATV.
7-18
Download from Www.Somanuals.com. All Manuals Search And Download.
q
WARNING
POTENTIAL HAZARD
Failure to use extra care when operating
on excessively rough, slippery or loose
terrain.
WHAT CAN HAPPEN
Could cause loss of traction or vehicle
control, which could result in an accident,
including an overturn.
HOW TO AVOID THE HAZARD
Do not operate on excessively rough, slip-
pery or loose terrain until you have
learned and practiced the skills necessary
to control the ATV on such terrain. Always
be especially cautious on these kinds of
terrain.
7-19
Download from Www.Somanuals.com. All Manuals Search And Download.
When riding in an area where you might not
easily be seen, such as desert terrain, mount a
caution flag on the ATV. DO NOT use the flag
pole bracket as a trailer hitch.
WHAT CAN HAPPEN
You could be in a collision. You could be
injured.
HOW TO AVOID THE HAZARD
Always mount a caution flag on the ATV to
make you more visible. Watch carefully for
other vehicles.
Do not ride in areas posted "no trespassing". Do
not ride on private property without getting per-
mission.
q
WARNING
POTENTIAL HAZARD
Operating in areas where you might not be
seen by other off-road vehicles.
7-20
Download from Www.Somanuals.com. All Manuals Search And Download.
Select a large, flat area off-road to become
familiar with your ATV. Make sure that this area
is free of obstacles and other riders. You should
practice control of the throttle, brakes, shifting
procedures, and turning techniques in this area
before trying more difficult terrain. Always avoid
riding on paved surfaces: the ATV is designed
for off-road use only, and handling maneuvers
are more difficult to perform on pavement.
With the engine idling, return the starter knob to
the closed position and shift the drive select
lever into the forward position. Then release the
parking brake. Apply the throttle slowly and
smoothly. The centrifugal clutch will engage and
you will start to accelerate. If the throttle is
applied too abruptly, the front wheels may lift off
the ground resulting in a loss of directional con-
trol. Avoid higher speeds until you are thorough-
ly familiar with the operation of your ATV.
Set the parking brake and follow the instruction
on page 6-1 to start the engine. Once it has
warmed up you are ready to begin riding your
ATV. Remember that the engine and exhaust
pipe will be hot when riding and afterwards; do
not allow skin or clothing to come in contact with
these components.
When slowing down or stopping, release the
throttle and apply the brakes smoothly and
evenly. Improper use of the brakes can cause
the tires to lose traction, reducing control and
increasing the possibility of an accident.
7-21
Download from Www.Somanuals.com. All Manuals Search And Download.
TURNING YOUR ATV
HOW TO AVOID THE HAZARD
To achieve maximum traction while riding off-
road, the two rear wheels are mounted solidly
on one axle and turn together at the same
speed. Therefore, unless the wheel on the
inside of the turn is allowed to slip or lose some
traction, the ATV will resist turning. A special
turning technique must be used to allow the ATV
to make turns quickly and easily. It is essential
that this skill be learned first at low speed.
Always follow proper procedures for turn-
ing as described in this Owner's Manual.
Practice turning at low speeds before
attempting to turn at faster speeds. Do not
turn at speeds too fast for your skills or
the conditions.
As you approach a curve, slow down and begin
to turn the handlebars in the desired direction.
As you do so, put your weight on the footboard
to the outside of the turn (opposite your desired
direction) and lean your upper body into the
turn. Use the throttle to maintain an even speed
through the turn. This maneuver will let the
wheel on the inside of the turn slip slightly,
allowing the ATV to make the turn properly.
q
WARNING
POTENTIAL HAZARD
Turning improperly.
WHAT CAN HAPPEN
ATV could go out of control, causing a
collision or overturn.
7-22
Download from Www.Somanuals.com. All Manuals Search And Download.
Once you have learned this technique you
should be able to perform it at higher speeds or
in tighter curves.
Lean towards
inside of turn.
Support your
weight on the
outer footboard
Improper riding procedures such as abrupt throt-
tle changes, excessive braking, incorrect body
movements, or too much speed for the sharp-
ness of the turn may cause the ATV to tip. If the
ATV begins to tip over to the outside while nego-
tiating a turn, lean more to the inside. It may
also be necessary to gradually let off on the
throttle and steer to the outside of the turn to
avoid tipping over.
This procedure should be practiced at slow
speed many times in a large off-road area with
no obstacles. If an incorrect technique is used,
your ATV may continue to go straight. If the ATV
doesn't turn, come to a stop and then practice
the procedure again. If the riding surface is slip-
pery or loose, it may help to position more of
your weight over the front wheels by moving for-
ward on the seat.
Remember: Avoid higher speeds until you are
thoroughly familiar with the operation of your
ATV.
7-23
Download from Www.Somanuals.com. All Manuals Search And Download.
CLIMBING UPHILL
q
WARNING
Use proper riding techniques to avoid vehicle
overturns on hills. Be sure that you can maneu-
ver your ATV well on flat ground before attempt-
ing any incline and then practice riding first on
gentle slopes. Try more difficult climbs only after
you have developed your skill. In all cases avoid
inclines with slippery or loose surfaces, or obsta-
cles that might cause you to lose control.
POTENTIAL HAZARD
Operating on excessively steep hills.
WHAT CAN HAPPEN
The vehicle can overturn more easily on
extremely steep hills than on level sur-
faces or small hills.
HOW TO AVOID THE HAZARD
Never operate the ATV on hills too steep
for the ATV or for your abilities.
Practice on smaller hills before attempting
large hills.
It is important when climbing a hill to make sure
that your weight is transferred forward on the
ATV. This can be accomplished by leaning for-
ward and, on steeper inclines, standing on the
footboards and leaning forward over the handle-
bars.
7-24
Download from Www.Somanuals.com. All Manuals Search And Download.
q
WARNING
An obstacle, a sharp drop, or another
vehicle or person could be on the other
side of the hill.
POTENTIAL HAZARD
Climbing hills improperly.
WHAT CAN HAPPEN
Could cause loss of control or cause the
ATV to overturn.
OK
HOW TO AVOID THE HAZARD
Always follow proper procedures for
climbing hills as described in this Owner's
Manual.
Always check the terrain carefully before
you start up any hill.
Never climb hills with excessively slippery
or loose surfaces.
Shift your weight forward.
Never open the throttle suddenly.
The ATV could flip over backwards.
Never go over the top of any hill at high
speed.
7-25
Download from Www.Somanuals.com. All Manuals Search And Download.
If you are climbing a hill and you find that you
have not properly judged your ability to make it
to the top, you should turn the ATV around while
you still have forward motion (provided you have
the room to do so) and go down the hill.
When crossing the side of a hill:
Always follow proper procedures as
described in the Owner's Manual.
Avoid hills with excessively slippery or
loose surfaces.
Shift your weight to the uphill side of the
ATV.
q
WARNING
POTENTIAL HAZARD
Improperly crossing hills or turning on
hills.
OK
WHAT CAN HAPPEN
Could cause loss of control or cause the
ATV to overturn.
HOW TO AVOID THE HAZARD
Never attempt to turn the ATV around on
any hill until you have mastered the turn-
ing technique as described in the Owner's
Manual on level ground. Be very careful
when turning on any hill.
Avoid crossing the side of a steep hill if
possible.
7-26
Download from Www.Somanuals.com. All Manuals Search And Download.
7-27
Download from Www.Somanuals.com. All Manuals Search And Download.
If your ATV has stalled or stopped and you
believe you can continue up the hill, restart care-
fully to make sure you do not lift the front wheels
which could cause you to lose control. If you are
unable to continue up the hill, dismount the ATV
on the uphill side. Physically turn the ATV
around and then descend the hill.
q
WARNING
POTENTIAL HAZARD
Stalling, rolling backwards or improperly
dismounting while climbing a hill.
WHAT CAN HAPPEN
Could result in ATV overturning.
HOW TO AVOID THE HAZARD
If you start to roll backwards, DO NOT use the
rear brake to stop. The ATV could easily tip over
backwards. Instead, dismount the ATV immedi-
ately on the uphill side.
Maintain steady speed when climbing a
hill.
If you lose all forward speed:
Keep weight uphill.
Apply the brakes.
Lock the parking brake, after you are
stopped.
If you begin rolling backwards:
Keep weight uphill.
Never apply the rear brake while rolling
backwards.
Apply the front brake.
7-28
Download from Www.Somanuals.com. All Manuals Search And Download.
When fully stopped, apply the rear
brake as well, and then lock the parking
brake.
Dismount on uphill side or to a side if
pointed straight uphill. Turn the ATV
around and remount, following the proce-
dure described in the Owner's Manual.
7-29
Download from Www.Somanuals.com. All Manuals Search And Download.
RIDING DOWNHILL
q
WARNING
When riding your ATV downhill, shift your weight
as far to the rear and uphill side of the ATV as
possible. Move back on the seat and sit with
your arms straight. Improper braking may cause
a loss of traction.
Use caution while descending a hill with loose or
slippery surfaces. Braking ability and traction
may be adversely affected by these surfaces.
Improper braking may also cause a loss of trac-
tion. Whenever possible, ride your ATV straight
downhill. Avoid sharp angles which could allow
the ATV to tip or roll over. Carefully choose your
path and ride no faster than you will be able to
react to obstacles which may appear.
POTENTIAL HAZARD
Going down a hill improperly.
WHAT CAN HAPPEN
Could cause loss of control or cause the
ATV to overturn.
HOW TO AVOID THE HAZARD
Always follow proper procedures for
going down hills as described in this
Owner's Manual. Note: a special technique
is required when braking as you go down
a hill.
Always check the terrain carefully before
you start down any hill.
Shift your weight backward.
Never go down a hill at high speed.
Avoid going down a hill at an angle that
would cause the vehicle to lean sharply to
one side. Go straight down the hill where
possible.
7-30
Download from Www.Somanuals.com. All Manuals Search And Download.
OK
7-31
Download from Www.Somanuals.com. All Manuals Search And Download.
CROSSING A SLOPE
q
WARNING
Traversing a sloping surface on your ATV
requires you to properly position your weight to
maintain proper balance. Be sure that you have
learned the basic riding skills on flat ground
before attempting to cross a sloping surface.
Avoid slopes with slippery surfaces or rough ter-
rain that may upset your balance.
POTENTIAL HAZARD
Improperly crossing hills or turning on
hills.
WHAT CAN HAPPEN
Could cause loss of control or cause the
ATV to overturn.
HOW TO AVOID THE HAZARD
As you travel across a slope, lean your body in
the uphill direction. It may be necessary to cor-
rect the steering when riding on loose surfaces
by pointing the front wheels slightly uphill. When
riding on slopes be sure not to make sharp turns
either up or down hill.
Never attempt to turn the ATV around on
any hill until you have mastered the turn-
ing technique as described in the Owner's
Manual on level ground. Be very careful
when turning on any hill. Avoid crossing
the side of a steep hill if possible.
When crossing the side of a hill:
If your ATV does begin to tip over, gradually
steer in the downhill direction if there are no
obstacles in your path. As you regain proper bal-
ance, gradually steer again in the direction you
wish to travel.
Always follow proper procedures as
described in the Owner's Manual.
Avoid hills with excessively slippery or
loose surfaces.
7-32
Download from Www.Somanuals.com. All Manuals Search And Download.
Shift your weight to the uphill side of the
ATV.
OK
7-33
Download from Www.Somanuals.com. All Manuals Search And Download.
CROSSING THROUGH SHALLOW WATER
The ATV can be used to cross slow moving,
shallow water of up to a maximum of 20 cm (7.9
inches) in depth. Before entering the water,
choose your path carefully. Enter where there is
no sharp drop off, and avoid rocks or other
obstacles which may be slippery or upset the
ATV. Drive slowly and carefully.
Remember that wet brakes may have
reduced stopping ability. Test your brakes
after leaving water. If necessary, apply
them several times to let friction dry out
the linings.
q
WARNING
POTENTIAL HAZARD
Operating this ATV through deep or fast
flowing water.
WHAT CAN HAPPEN
Tires may float, causing loss of traction
and loss of control, which could lead to an
accident.
HOW TO AVOID THE HAZARD
Never operate this ATV in fast flowing
water or in water deeper than that speci-
7-34
fied in your Owner'sDMowannlouaadlf.rom Www.Somanuals.com. All Manuals Search And Download.
Test your brakes after leaving the water. Do not
continue to ride your ATV without verifying that
you have regained proper braking ability.
cC
After riding your ATV in water, be sure to
drain the trapped water by removing the
check hose at the bottom of the air filter
case. Wash the ATV in fresh water if it has
been operated in salt water or muddy condi-
tions.
q
1. Check hose
7-35
Download from Www.Somanuals.com. All Manuals Search And Download.
RIDING OVER ROUGH TERRAIN
q
WARNING
Riding over rough terrain should be done with
caution. Look out for obstacles which could
cause damage to the ATV or could lead to an
upset or accident. Be sure to keep your feet
firmly mounted on the footboards at all times.
Avoid jumping the ATV as loss of control and
damage to the ATV may result.
POTENTIAL HAZARD
Improperly operating over obstacles.
WHAT CAN HAPPEN
Could cause loss of control or a collision.
Could cause the ATV to overturn.
HOW TO AVOID THE HAZARD
Before operating in a new area, check for
obstacles.
Never attempt to ride over large obstacles,
such as large rocks or fallen trees. When
you go over obstacles, always follow
proper procedures as described in the
Owner's Manual.
7-36
Download from Www.Somanuals.com. All Manuals Search And Download.
7-37
Download from Www.Somanuals.com. All Manuals Search And Download.
SLIDING AND SKIDDING
If the rear wheels of your ATV start to slide side-
ways, control can usually be regained (if there is
room to do so) by steering in the direction of the
slide. Applying the brakes or accelerating is not
recommended until you have corrected the
slide.
Care should be used when riding on loose or
slippery surfaces since the ATV may slide. If
unexpected and uncorrected, sliding could lead
to an accident.
To reduce the tendency for the front wheels to
slide in loose or slippery conditions, positioning
your weight over the front wheels will sometimes
help.
7-38
Download from Www.Somanuals.com. All Manuals Search And Download.
With practice, over a period of time, skill at con-
trolled sliding can be developed. The terrain
should be chosen carefully before attempting
such maneuvers, since both stability and control
are reduced. Bear in mind that sliding maneu-
vers should always be avoided on extremely
slippery surfaces such as ice, since all control
may be lost.
q
WARNING
POTENTIAL HAZARD
Skidding or sliding improperly.
WHAT CAN HAPPEN
You may lose control of this ATV. You
may also regain traction unexpectedly,
which may cause the ATV to overturn.
HOW TO AVOID THE HAZARD
Learn to safely control skidding or sliding
by practicing at low speeds and on level,
smooth terrain.
On extremely slippery surfaces, such as
ice, go slowly and be very cautious in
order to reduce the chance of skidding or
sliding out of control.
7-39
Download from Www.Somanuals.com. All Manuals Search And Download.
WHAT TO DO IF ...
8 If your ATV starts to slide sideways:
Steer in the direction of the slide if you have
the room.
This section is designed to be a reference guide
only. Be sure to read each section on riding
techniques completely.
Applying the brakes or accelerating is not rec-
ommended until you have corrected the slide.
(See pages 7-38 – 7-39.)
WHAT TO DO ...
8 If your ATV doesn't turn when you want it to:
Bring the ATV to a stop and practice the turn-
ing maneuvers again. Be sure you are putting
your weight on the footboard to the outside of
the turn. Position your weight over the front
wheels for better control. (See pages 7-22 –
7-23.)
8 If your ATV can't make it up a hill you are try-
ing to climb:
Turn the ATV around if you still have forward
speed. If not, stop, dismount on the uphill side
of the ATV and physically turn the ATV
around. If the ATV starts to slip backwards
DO NOT USE THE REAR BRAKE - the ATV
may tip over on top of you. Dismount the ATV
on the uphill side. (See pages 7-24 – 7-29.)
8 If your ATV begins to tip while turning:
Lean more into the turn to regain balance. If
necessary, gradually let off the throttle and/or
steer to the outside of the turn. (See pages
7-22 – 7-23.)
7-40
Download from Www.Somanuals.com. All Manuals Search And Download.
8 If your ATV is traversing a sloping surface:
Be sure to ride with your weight positioned
towards the uphill side of the ATV to maintain
proper balance. If the ATV starts to tip, steer
down the hill (if there are no obstacles in your
way) to regain balance. If you discover that
the ATV is going to tip over, dismount on the
uphill side. (See pages 7-32 – 7-33.)
8 If your ATV encounters shallow water:
Ride slowly and carefully through slow mov-
ing water, watching for obstacles. Be sure to
let water drain from the ATV and CHECK
YOUR BRAKES FOR PROPER OPERATION
when you come out of the water. Do not con-
tinue to ride your ATV until you have regained
adequate braking ability. (See pages 7-34 –
7-35.)
w
Indicates a potential hazard that could result
in serious injury or death.
7-41
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00515
Have a Yamaha dealer perform service if
you are not familiar with machine service.
PERIODIC MAINTENANCE AND
ADJUSTMENT
Periodic inspection, adjustment and lubrication
will keep your machine in the safest and most
efficient condition possible. Safety is an obliga-
tion of the machine owner. The most important
points of machine inspection, adjustment and
lubrication are explained on the following pages.
EBU00257
Owner’s manual and tool kit
You are recommended to put this owner’s man-
ual and low-pressure tire gauge in the vinyl bag
and always carry them along with the owner’s
tool kit under the seat.
q
WARNING
POTENTIAL HAZARD
Servicing an engine while it is running.
WHAT CAN HAPPEN
q
Moving parts can catch clothing or parts
of the body, causing injury.
w
e
Electrical components can cause shocks
or can start fires.
1. Owner’s manual
3. Tool kit
2. Low-pressure tire gauge
HOW TO AVOID THE HAZARD
Turn off the engine when performing
maintenance unless otherwise specified.
8-1
Download from Www.Somanuals.com. All Manuals Search And Download.
The service information included in this manual
is intended to provide you, the owner, with the
necessary information for completing your own
preventive maintenance and minor repairs. The
tools provided in the Owner’s tool kit are suffi-
cient for this purpose, except that a torque
wrench is also necessary to properly tighten
nuts and bolts.
q
WARNING
POTENTIAL HAZARD
Operating this ATV with improper modifi-
cations.
WHAT CAN HAPPEN
Improper installation of accessories or
modification of this vehicle may cause
changes in handling which in some situa-
tions could lead to an accident.
NOTE:
8
If you do not have a torque wrench available
during a service operation requiring one, take
your machine to a Yamaha dealer to check the
torque settings and adjust them as necessary.
HOW TO AVOID THE HAZARD
Never modify this ATV through improper
installation or use of accessories. All parts
and accessories added to this vehicle
should be genuine Yamaha or equivalent
components designed for use on this ATV
and should be installed and used accord-
ing to instructions. If you have questions,
consult an authorized Yamaha ATV dealer.
8-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00261
PERIODIC MAINTENANCE/LUBRICATION
INITIAL
3
EVERY
ITEM
ROUTINE
1
6
6
1
month months months months year
• Check valve clearance.
• Adjust if necessary.
Valves*
1
1
1
1
1
1
1
1
• Check condition.
• Adjust gap and clean.
• Replace if necessary.
Spark plug
1
Air filter element
(for engine and V-belt
compartment)
• Clean.
• Replace if necessary.
Every 20 – 40 hours
(more often in wet or dusty areas)
• Check idle speed/starter operation.
• Adjust if necessary.
Carburetor*
1
1
1
1
1
1
1
Cylinder head cover
breather system*
• Check breather hose for cracks or damage.
• Replace if necessary.
• Check leakage.
• Retighten if necessary.
• Replace gasket if necessary.
Exhaust system*
1
1
1
Spark arrester
Fuel line*
• Clean.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
• Check fuel hose for cracks or damage.
• Replace if necessary.
Engine oil
• Replace (warm engine before draining).
1
1
1
1
• Clean.
• Replace if necessary.
Oil strainer*
Drive chain
Transmission oil
• Check and adjust slack/alignment/clean/lube.
1
1
• Check oil level/oil leakage.
• Replace every 12 months.
8-3
Download from Www.Somanuals.com. All Manuals Search And Download.
INITIAL
3
EVERY
ITEM
ROUTINE
1
6
6
1
month months months months year
• Check operation.
• Adjust if necessary.
Brakes*
V-belt*
1
1
1
1
1
1
1
1
1
1
1
• Check operation
• Replace if damage or excessive wear.
• Check balance/damage/runout.
• Replace if necessary.
Wheels*
1
1
1
1
• Check bearing assembly for looseness/damage.
• Replace if damaged.
Wheel bearings*
Steering system*
• Check operation.
• Replace if damaged.
• Check toe-in.
1
1
1
1
1
• Adjust if necessary.
Knuckle shafts/
steering shaft*
• Lubricate every 6 months.**
1
1
1
1
1
1
• Check all chassis fittings and fasteners.
• Correct if necessary.
Fittings and fasteners*
1
1
1
1
• Check specific gravity.
• Check breather hose for correct routing.
• Correct if necessary.
Battery*
1
1
1
*
: It is recommended that these items be serviced by a Yamaha dealer.
** : Lithium-soap-based grease.
w
Indicates a potential hazard that could result
in serious injury or death.
8-4
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00896
Engine oil
w
e
q
Engine oil level measurement
1. Place the machine on a level surface.
2. Warm up the engine for several minutes and
stop it.
3. Remove the dipstick and wipe it off with a
clean rag. Insert the dipstick in the filler hole
without screwing it in.
NOTE:
1. Dipstick
3. Minimum level mark
2. Maximum level mark
Wait a few minutes until the oil level settles
before checking.
cC
Be sure no foreign material enters the
crankcase.
4. Remove the dipstick and inspect the oil level.
5. The oil level should be between the maximum
and minimum marks. If the level is low, add oil
to raise it to the proper level.
Engine oil replacement and oil filter cleaning
1. Place the machine on a level surface.
2. Warm up the engine for several minutes and
stop it.
3. Place a container under the engine to collect
the used oil.
8-5
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Remove the dipstick and drain bolt to drain
the oil.
5. Clean the oil strainer with solvent.
6. Inspect the O-ring and replace it if damaged.
7. Install the O-ring, oil strainer, compression
spring and drain bolt. Tighten the drain bolt to
specification.
q
cC
Before installing the drain bolt, be sure to
install the O-ring, compression spring and
oil strainer.
r
q
w
e
2. O-ring
1. Drain bolt
3. Compression spring
4. Oil strainer
Tightening torque:
Drain bolt (engine):
cC
32 Nm (3.2m0kgf, 23 ft0lbf)
When removing the drain bolt, the compres-
sion spring, oil strainer and O-ring will fall
out. Take care not to lose these parts.
8-6
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00891
8. Fill the engine with oil and install the dipstick.
Transmission oil
Transmission oil measurement
1. Place the machine on a level surface.
2. Remove the screw and check the oil level. It
should be up to the brim of the hole. If the
level is low, remove the oil filler bolt and add
oil to raise it to the proper level.
Recommended oil:
See page 10-2.
Oil quantity:
Periodic oil change
1.25 L (1.10 Imp qt, 1.32 US qt)
Total amount:
1.45 L (1.28 Imp qt, 1.53 US qt)
w
e
cC
Be sure no foreign material enters the
crankcase.
9. Warm up the engine for several minutes at
idle speed. Check for oil leakage while warm-
ing up.
q
1. Screw
2. Brim
3. Correct oil level
cC
If oil leakage is found, stop the engine imme-
diately and check for the cause.
8-7
Download from Www.Somanuals.com. All Manuals Search And Download.
3. Remove the oil filler bolt and drain bolt to
drain the oil.
q
q
1. Oil filler bolt
3 Install the screw and oil filler bolt and tighten
to specification.
1. Drain bolt
Tightening torque:
Screw:
4. Install the drain bolt and tighten to specifica-
tion.
16 Nm (1.6 m0kgf, 11 ft0lbf)
Oil filler bolt:
Tightening torque
Drain bolt:
23 Nm (2.3 m0kgf, 17 ft0lbf)
23 Nm (2.3 m0kgf, 17 ft0lbf)
Transmission oil replacement
1. Place the machine on a level surface.
2. Place a container under the engine.
8-8
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00870
5. Fill the engine with oil and install the oil filler
bolt.
Spark plug inspection
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.
Recommended oil:
See page 10-2
Oil quantity:
For example, a very white center electrode
porcelain color could indicate an intake air leak
or carburetion problem for that cylinder. Do not
attempt to diagnose such problems yourself.
Instead, take the ATV to a Yamaha dealer. You
should periodically remove and inspect the
spark plug because heat and deposits will cause
the spark plug to slowly break down and erode.
If electrode erosion becomes excessive, you
should replace the spark plug with one of the
proper type.
Total amount:
0.6 L (0.53 Imp qt, 0.63 US qt)
cC
Be sure no foreign material enters the
crankcase.
6. Start the engine and warm up for a few min-
utes. While warming up, check for oil leakage.
If oil leakage is found, stop the engine imme-
diately and check for the cause.
Standard spark plug:
CR7HS (NGK)
7. Check the oil level.
8-9
Download from Www.Somanuals.com. All Manuals Search And Download.
Before installing the spark plug, measure the
electrode gap with a feeler gauge and adjust to
specification.
q
Spark plug gap:
0.6 – 0.7 mm (0.02 – 0.03 in)
1. Spark plug wrench
Tightening torque:
Spark plug:
a
12.5 Nm (1.25 m0kgf, 9.1 ft0lbf)
a. Spark plug gap
When installing the spark plug, always clean the
gasket surface and use a new gasket. Wipe off
any grime from the threads and tighten to the
specified torque.
8-10
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01142
1. Remove the seat.
2. Remove the breather hose, and then loosen
the clamp screw.
Engine and V-belt case air filter element
cleaning
Both air filter elements should be cleaned at the
specified intervals in the periodic maintenance
chart.
3. Remove the air filter case cover.
q
w
e
Engine air filter element
NOTE:
There is a check hose at the bottom of the air fil-
ter case. If dust or water collects in this hose,
empty the hose and clean the air filter element
and air filter case.
1. Air filter case cover
3. Clamp
2. Breather hose
q
1. Check hose
8-11
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Remove the air filter element, and separate
it from the frame.
q
WARNING
POTENTIAL HAZARD
Using low flash point solvents or gasoline
to clean the air filter element.
w
q
WHAT CAN HAPPEN
Low flash point solvents or gasoline can
catch fire or explode.
HOW TO AVOID THE HAZARD
Use parts cleaning solvent to clean the air
filter element.
1. Air filter element
2. Element frame
5. Wash the element gently but thoroughly in
solvent.
6. Squeeze the excess solvent out of the air fil-
ter element and let it dry.
cC
Do not twist the air filter element when
squeezing it.
8-12
Download from Www.Somanuals.com. All Manuals Search And Download.
7. Inspect the air filter element. If damaged,
replace it.
8. Apply Yamaha foam air filter oil or other
quality foam air filter oil to the air filter ele-
ment. If foam air filter oil is not available,
engine oil may be used.
cC
Install the washer with the bent edge facing
upward as shown.
q
NOTE:
The element should be wet but not dripping.
9. Install the air filter element on the frame.
10. Install the air filter element into the air filter
case, and then install the parts removed for
access.
1. Washer
8-13
Download from Www.Somanuals.com. All Manuals Search And Download.
V-belt case air filter element
1. Remove the front cover by removing the
screws and bolts.
NOTE:
The air filter element should be cleaned every
20 – 40 hours. It should be cleaned and lubricat-
ed more often if the machine is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions. Check
the air cleaner rubber joint to the carburetor and
manifold fittings for an airtight seal. Tighten all
fittings securely to avoid the possibility of unfil-
tered air entering the engine.
3
2
1
3
2
cC
1. Front cover
2. Screw (× 2)
3. Bolt (× 2)
Never operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, opera-
tion without the air filter element will affect
carburetor jetting with subsequent poor per-
formance and possible engine overheating.
8-14
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01143
2. Remove the air filter element cover.
3. Pull out the air filter element.
Idle speed adjustment
NOTE:
A diagnostic tachometer must be used for this
procedure.
1. Start the engine and warm it up for a few
minutes at approximately 1,000 to 2,000
r/min. Occasionally rev the engine to 4,000
to 5,000 r/min. The engine is warm when it
quickly responds to the throttle.
w
e
q
1. Element cover
2. Screw
3. Element
4. Tap the element lightly to remove most of
the dust and dirt. Blow out the remaining dirt
with compressed air. If the air filter element
is damaged, replace it.
5. Assemble by reversing the removal proce-
dure. Be sure the air filter element is seated
properly against the case.
8-15
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00303
2. Connect the tachometer to the spark plug
lead, and then set the idle to the specified
idling speed by adjusting the throttle stop
screw. Turn the screw in direction a to
increase the engine speed, and in direction
b to decrease the engine speed.
Valve clearance adjustment
The correct valve clearance changes with use,
resulting in improper fuel/air supply or engine
noise. To prevent this, the valve clearance must
be adjusted regularly. This adjustment however,
should be left to a professional Yamaha service
technician.
Specified idle speed:
1,650 – 1,750 r/min
q
b
a
1. Throttle stop screw
8-16
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00307
Throttle lever adjustment
NOTE:
Adjust the engine idling speed before adjusting
the throttle lever free play.
1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 3 – 5 mm (0.12 – 0.20 in).
3. Tighten the locknut.
q
w
a
1. Locknut
2. Adjusting bolt
a. Free play
8-17
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00308
Rear
Front and rear brake shoe inspection
A wear indicator is provided on each brake. The
indicators allows checking of brake shoe wear
without disassembling the brake. Apply the
brake and check the position of the indicator. If
the indicator reaches the wear limit line, ask a
Yamaha dealer to replace the shoes as a set.
q
w
Front
1. Wear limit line
2. Wear indicator
w
q
1. Wear limit line
2. Wear indicator
8-18
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01149
1. Remove the front cover by removing the
screws and bolts. (See page 8-14 for
removal and installation procedures.)
2. Remove the air filter element cover. (See
page 8-15 for removal and installation pro-
cedures.)
Front brake lever free play adjustment
NOTE:
Before adjusting the brake lever free play,
inspect the front brake shoes.
The front brake lever free play should be adjust-
ed to 5 – 8 mm (0.2 – 0.3 in) at the brake lever
pivot. If the free play is incorrect, adjust it as fol-
lows.
q
a
w
w
1. Front fender
2. Bolt (× 2)
a. Free play
8-19
Download from Www.Somanuals.com. All Manuals Search And Download.
3. Loosen the locknut and fully turn in the
adjusting bolt at the front brake lever.
e
e
q
q
w
w
w
1. Front fender
2. Bolt (× 2)
3. Screw (× 6)
1. Locknut
2. Adjusting bolt
8-20
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Make sure the brake cable joint in the equal-
izer is straight when the brake is applied. If
not, loosen the locknut and turn the adjust-
ing nuts at the front brake cables until the
cable joint becomes straight.
w
q
w
q
w
q
1. Locknut (× 2)
2. Adjusting nut (× 2)
a´
a
5. Tighten the locknut on each brake cable.
a = a´
1. Equalizer
2. Cable joint
8-21
Download from Www.Somanuals.com. All Manuals Search And Download.
6. Turn the adjusting bolt at the brake lever
until the specified free play is obtained.
q
WARNING
POTENTIAL HAZARD
Operating with improperly serviced or
adjusted brakes.
a
q
w
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
HOW TO AVOID THE HAZARD
After servicing:
8 Make sure the brakes operate smoothly
and that the free play is correct.
8 Make sure the brakes do not drag.
Replacement of brake components
requires professional knowledge. These
procedures should be performed by a
Yamaha dealer.
1. Locknut
a. Free play
2. Adjusting bolt
Specified free play:
5 – 8 mm (0.2 – 0.3 in)
7. Tighten the locknut at the brake lever.
8. Install by reversing the removal procedure.
8-22
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00965
Rear brake adjustment
Turn the adjusting nut on the brake hub in direc-
tion a to decrease play, and in direction b to
increase play.
Brake lever free play should be 5 – 8 mm (0.2 –
0.3 in) at the brake lever pivot.
If the free play is incorrect, adjust as follows:
a
b
a
q
1. Adjusting nut
a. Free play
8-23
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01144
Drive chain slack check
q
WARNING
NOTE:
POTENTIAL HAZARD
Move the ATV back and forth and find the tight-
est position of the drive chain. Check and/or
adjust the chain slack while it is in this tightest
position.
Operating with improperly serviced or
adjusted brakes.
WHAT CAN HAPPEN
You could lose braking ability, which
could lead to an accident.
To check the drive chain slack, all tires must be
touching the ground and there should be no
weight on it. Check the drive chain slack at the
position shown in the illustration Normal slack is
approximately 30 mm (1.18 in). If the slack
exceeds 30 mm (1.18 in), adjust it to specification.
HOW TO AVOID THE HAZARD
After servicing:
8 Make sure the brakes operate smoothly
and that the free play is correct.
8 Make sure the brakes do not drag.
Replacement of brake components
requires professional knowledge.
These procedures should be performed by
a Yamaha dealer.
a
a. Drive chain slack
8-24
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01146
Drive chain slack adjustment
1. Loosen the hub stopper bolt locknut and
then the hub stopper bolt.
3. Loosen the locknut. To tighten the drive
chain, turn the adjusting bolt in direction a.
To loosen the drive chain, turn the adjusting
bolt in direction b, and then push the
wheels forward.
e
q
w
e
a
b
1. Hub stopper bolt
2. Locknut
3. Axle holding bolt (× 4)
q
w
2. Loosen the upper and lower axle holding
bolts.
1. Locknut
2. Chain adjusting bolt
cC
Too little of drive chain slack will overload
the engine and other important parts. Keep
the drive chain slack within the specified
limit.
8-25
Download from Www.Somanuals.com. All Manuals Search And Download.
4. After adjusting, be sure to tighten the lock-
nut and the axle holding bolts.
cC
If measurement
A
of the drive chain adjust-
ing bolt is less than 27 mm (1.06 in), ask a
Yamaha dealer to replace the drive chain.
Tightening torque:
Locknut:
15.5 Nm (1.55 m0kgf, 11.2 ft0lbf)
Axle holding bolts (upper):
85 Nm (8.5 m0kgf, 61 ft0lbf)
Axle holding bolts (lower):
60 Nm (6.0 m0kgf, 43 ft0lbf)
A
5. Finger tighten the hub stopper bolt and tight-
en the hub stopper bolt locknut.
Tightening torque:
Locknut:
A. 27 mm (1.06 in)
15.5 Nm (1.55 m0kgf, 11.2 ft0lbf)
8-26
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00805
2. Wipe the drive chain dry.
Lubricating the drive chain
3. Thoroughly lubricate the drive chain with a
special O-ring chain lubricant.
The drive chain must be cleaned and lubricated
at the intervals specified in the periodic mainte-
nance and lubrication chart, otherwise it will
quickly wear out, especially when riding in dusty
or wet areas. Service the drive chain as follows.
cC
Do not use engine oil or any other lubricants
for the drive chain, as they may contain sub-
stances that could damage the O-rings.
cC
The drive chain must be lubricated after
washing the ATV or riding in the rain.
1. Clean the drive chain with kerosene and a
small soft brush.
q
cC
To prevent damaging the O-rings, do not
clean the drive chain with steam cleaners,
high-pressure washers or inappropriate sol-
vents.
1. O-rings
8-27
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00355
EBU00356
Draining the V-belt compartment
Cable inspection and lubrication
If water leaks into the V-belt compartment such
as when the machine is driven in water, remove
the drain screw on the bottom of compartment
and drain the water. Be sure to drive slowly until
the V-belt becomes dry. If slipping is noticed,
ask a Yamaha dealer to inspect.
q
WARNING
POTENTIAL HAZARD
Damaged control cables.
WHAT CAN HAPPEN
Corrosion can result when the outer cov-
ering of control cables becomes damaged.
Cables can also become frayed or kinked.
Operation of controls could be restricted,
which could cause an accident or injury.
HOW TO AVOID THE HAZARD
Inspect cables frequently. Replace dam-
aged cables.
q
Lubricate the inner cables and the cable ends. If
the cables do not operate smoothly, ask a
Yamaha dealer to replace them.
1. Drain screw
Recommended lubricant:
Yamaha chain and cable lube or
SAE 10W30 motor oil
8-28
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00725
EBU00728
Brake lever lubrication
Lubricate the pivoting parts of the brake levers.
Knuckle shaft, lower arms and steering shaft
lubrication
Lubricate the pivot points using a grease gun.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Recommended lubricant:
Lithium-soap-based grease
8-29
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01112
Wheel removal
2. Lower the ATV to the ground.
3. Tighten the wheel nuts to the specified
torque.
1. Loosen the wheel nuts.
2. Elevate the ATV and place a suitable stand
under the frame.
3. Remove the nuts from the wheel.
4. Remove the wheel.
q
1. Wheel nut
Tightening torque:
Front wheel nut:
EBU01150
Wheel installation
1. Install the wheel and the nuts.
55 Nm (5.5 m0kgf, 40 ft0lbf)
Rear wheel nut:
55 Nm (5.5 m0kgf, 40 ft0lbf)
NOTE:
Tapered wheel nuts are used for both front and
rear wheels. Install the nut with its tapered side
towards the wheel.
8-30
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00378
Battery
Check the level of the battery fluid and see if the
terminals are tight. Add distilled water if the fluid
level is low.
q
w
e
cC
Do not leave or store the battery on its side.
When inspecting the battery, be sure the
breather hose is routed correctly. If it touch-
es the frame or exists in such a way as to
cause battery electrolyte or gas to exit onto
the frame, structural and cosmetic damage
to the machine can occur.
1. Battery
2. Battery breather hose
3. Guide (× 2)
8-31
Download from Www.Somanuals.com. All Manuals Search And Download.
q
EYES: Flush with water for 15 minutes and
get prompt medical attention. Keep batter-
ies away from sparks, flames, cigarettes
or other sources of ignition. Ventilate
when charging or using in a closed space.
WARNING
POTENTIAL HAZARD
Failure to handle batteries or battery elec-
trolyte carefully.
WHAT CAN HAPPEN
You could be poisoned. You could be
severely burned by the sulfuric acid in bat-
tery electrolyte.
Batteries produce explosive gases.
HOW TO AVOID THE HAZARD
Avoid contact with skin, eyes or clothing.
Always shield eyes when working near
batteries. Keep out of reach of children.
Antidote:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg or vegetable oil. Get prompt
medical attention.
8-32
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00382
Replenishing the battery fluid
cC
A poorly maintained battery will corrode and dis-
charge quickly. The battery fluid should be
checked at least once a month.
Normal tap water contains minerals which
are harmful to a battery. Therefore, refill only
with distilled water.
1. The level should be between the upper and
lower level marks. Use only distilled water if
refilling is necessary.
4. When the machine is not to be used for a
month or longer, remove the battery and
store it in a cool, dark place. Completely
recharge the battery before reusing.
e
5. If the battery is to be stored for a longer
period than the above, check the specific
gravity at least once a month and recharge
the battery when it is too low.
r
q
w
6. Always make sure the connections are cor-
rect when putting the battery back in the
machine. Make sure the breather hose is
properly connected and is not damaged or
obstructed.
1. Maximum level mark
2. Minimum level mark
3. Negative (–) lead
4. Positive (+) lead
2. Disconnect the negative (–) lead.
3. Disconnect the positive (+) lead and remove
the battery.
8-33
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00388
Fuse replacement
1. The fuse case is located on the right side of
the machine.
2. If the fuse is blown, turn off the main switch
and install a new fuse of the specified
amperage. Then turn on the switches, if the
fuse immediately blows again, consult a
Yamaha dealer.
Specified fuse: 5A
q
WARNING
POTENTIAL HAZARD
Using an improper fuse.
WHAT CAN HAPPEN
An improper fuse can cause damage to
the electrical system which could lead to a
fire.
HOW TO AVOID THE HAZARD
w
Always use a fuse of the specified rating.
Never use a material in place of the proper
fuse.
cC
q
To prevent accidental short-circuiting, turn
off the main switch when checking or replac-
ing a fuse.
1. Fuse
2. Spare fuse
8-34
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU01151
Replacing the headlight bulb
If the headlight bulb burns out, replace the bulb
as follows.
2. Remove the headlight bulb holder cover,
turn the bulb holder counterclockwise and
remove the defective bulb.
1. Remove the screws holding the headlight
unit assembly to the headlight body.
1
1
1. Headlight bulb holder
1. Screw (× 2)
8-35
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Install the headlight unit assembly by
installing the screws.
q
WARNING
POTENTIAL HAZARD
6. Adjust the headlight beam if necessary.
The headlight bulb is hot when it is on and
immediately after it is turned off.
WHAT CAN HAPPEN
You can be burned, or a fire could start if
the bulb touches something flammable.
HOW TO AVOID THE HAZARD
Wait for the bulb to cool before touching
or removing it.
3. Put a new headlight bulb into position and
secure it in place with the bulb holder.
4. Install the headlight bulb holder cover.
cC
Make sure the bulb holder cover is securely
fitted over the bulb holder and seated
against the reflector.
8-36
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00861
Tail/brake light bulb replacement
1. Remove the bulb holder (together with the
bulb) by turning it counterclockwise.
3. Install a new bulb in the bulb holder by push-
ing it inward and turning it clockwise.
q
w
q
1. Bulb
2. Bulb holder
1. Bulb holder
4. Install the bulb holder (together with the bulb).
2. Remove the defective bulb from the bulb
holder by pushing it inward and turning it
counterclockwise.
8-37
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00410
EBU01155
Headlight beam adjustment
Spark arrester cleaning
Be sure the exhaust pipe and muffler are cool
before cleaning the spark arrester.
1. Remove the screws.
cC
It is advisable to have a Yamaha dealer make
this adjustment.
Vertical adjustment:
To raise the beam, loosen the adjusting screw
and pull the headlight assembly toward you.
To lower the beam, push it away from you. After
adjusting, be sure to tighten the screw.
q
1. Screw (× 2)
q
1. Adjusting screw
8-38
Download from Www.Somanuals.com. All Manuals Search And Download.
2. Remove the tailpipe by pulling it out of the
muffler.
q
WARNING
POTENTIAL HAZARD
3. Tap the tailpipe lightly, then use a wire
brush to remove any carbon deposits from
the spark arrester portion of the tailpipe.
Improper cleaning of the spark arrester.
Hot exhaust system
WHAT CAN HAPPEN
q
Could injure the eyes.
w
Could cause burns.
Could cause carbon monoxide poisoning,
possibly leading to death.
Could start a fire.
HOW TO AVOID THE HAZARD
When cleaning the spark arrester:
Always let the exhaust system cool prior
to touching exhaust components.
Do not start the engine when cleaning the
exhaust system.
1. Tailpipe
2. Spark arrester
4. Insert the tailpipe into the muffler and align
the screw holes.
5. Install the screws and tighten them.
8-39
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00412
Troubleshooting
q
WARNING
Although Yamaha machines receive a rigid
inspection before shipment from the factory,
trouble may occur during operation. Any prob-
lem in the fuel, compression, or ignition systems
can cause poor starting and loss of power. The
troubleshooting chart describes a quick, easy
procedure for making checks. If your machine
requires any repair, take it to a Yamaha dealer.
POTENTIAL HAZARD
Checking the fuel system while smoking
or near an open flame.
WHAT CAN HAPPEN
Fuel can ignite or explode, causing severe
injury or property damage.
HOW TO AVOID THE HAZARD
Do not smoke when checking the fuel sys-
tem. Make sure there are no open flames
or sparks in the area, including pilot lights
from water heaters or furnaces.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only gen-
uine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a shorter
service life and can lead to expensive repair
bills.
8-40
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00440
Remove the
fuel hose from
the fuel cock.
Water or dirt
mixed in fuel.
Clean the fuel filter and
the fuel tank.
Troubleshooting chart
Turn the fuel
cock to “ON”.
Check fuel flow.
No fuel.
Fuel cock clogged.
Clean fuel cock.
Turn the fuel
cock to “OFF”.
There is fuel.
1. Fuel
Check if there is
fuel in the fuel
tank.
Turn the fuel
cock to “RES”.
Some fuel.
No fuel.
Restart engine.
Supply fuel.
2. Compression
Use electric starter
to see if there is
compression.
There is compresson.
No compression.
Compression normal.
Ask a Yamaha dealer to inspect.
Wipe clean with dry
cloth.
3. Ignition
Wet
Dry
Remove plug and
check electrodes.
Spark good.
Ignition system normal.
Attach plug cap and
ground to chassis.
Use electric
starter.
Spark weak.
No spark.
Adjust plug gap or
replace plug.
Engine turns
over quickly.
4. Battery
Battery good.
Ask a Yamaha dealer to inspect.
Use electric
starter.
Engine turns
over slowly.
Check fluid, recharge,
check connections.
8-41
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00417
cC
CLEANING AND STORAGE
Excessive water pressure may cause water
seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical
devices. Many expensive repair bills have
resulted from improper high pressure deter-
gent applications such as those available in
coin-operated car washers.
A. CLEANING
Frequent, thorough cleaning of your machine
will not only enhance its appearance but will
improve its general performance and extend the
useful life of many components.
1. Before cleaning the machine:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler
caps are properly installed.
4. Once the majority of the dirt has been hosed
off, wash all surfaces with warm water and
mild, detergent-type soap. An old tooth-
brush or bottle brush is handy for hard-to-
get-at places.
5. Rinse the machine off immediately with
clean water and dry all surfaces with a
chamois, clean towel or soft absorbent
cloth.
9
2. If the engine case is excessively greasy,
apply degreaser with a paint brush. Do not
apply degreaser to the chain, sprockets or
wheel axles.
3. Rinse the dirt and degreaser off with a gar-
den hose. Use only enough pressure to do
the job.
6. Dry the chain and lubricate it to prevent rust.
9-1
Download from Www.Somanuals.com. All Manuals Search And Download.
7. Clean the seat with a vinyl upholstery clean-
er to keep the cover pliable and glossy.
8. Automotive type wax may be applied to all
painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or pro-
tective finish.
q
WARNING
POTENTIAL HAZARD
Operation with wet brakes after washing.
WHAT CAN HAPPEN
Wet brakes may have reduced stopping
ability, increasing the chance of an acci-
dent.
When finished, start the engine and let it idle
for several minutes.
HOW TO AVOID THE HAZARD
Test the brakes after washing. Apply the
brakes several times at slow speeds to let
friction dry out the linings.
9-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00525
motor oil in the spark plug hole and reinstall
the spark plug. Ground the spark plug wire
and turn the engine over several times to
coat the cylinder wall with oil.
B. STORAGE
Long term storage (60 days or more) of your
machine will require some preventive proce-
dures to guard against deterioration. After thor-
oughly cleaning the machine, prepare for stor-
age as follows:
3. Clean the drive chain thoroughly and lubri-
cate it. (See page 8-25.)
4. Lubricate all control cables.
1. Fill the fuel tank with fresh fuel and add the
specified amount of Yamaha Fuel Stabilizer
and Conditioner or an equivalent product.
5. Block up the frame to raise all wheels off the
ground.
6. Tie a plastic bag over the exhaust pipe out-
let to prevent moisture from entering.
7. If storing in a humid or salt-air atmosphere,
coat all exposed metal surfaces with a light
film of oil. Do not apply oil to any rubber
parts or the seat cover.
8. Remove the battery and charge it. Store it in
a dry place and recharge it once a month.
Do not store the battery in an excessively
warm or cold place (less than 0°C (30°F) or
more than 30°C (90°F)).
Specified amount:
1 oz of stabilizer to each gallon of fuel
(or 7.5 cc of stabilizer to each liter of fuel)
NOTE:
Use of fuel stabilizer and conditioner eliminates
the need to drain the fuel system. Consult a
Yamaha dealer if the fuel system needs to be
drained instead.
NOTE:
2. Remove the spark plug, pour about one
tablespoon of SAE 10W30 or 20W40
Make any necessary repairs before storing the
machine.
9-3
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00428
SPECIFICATIONS
Model
YFA1
Dimension:
Overall length
Overall width
Overall height
Seat height
Wheel base
Minimum ground clearance
Minimum turning radius
1,640 mm (64.6 in)
965 mm (38.0 in)
980 mm (38.6 in)
690 mm (27.2 in)
1,080 mm (42.5 in)
145 mm ( 5.7 in)
2,900 mm (114.2 in)
Basic weight:
With oil and full fuel tank
144 kg (318 lb)
Engine:
Type
Air cooled, 4-stroke, SOHC
Single cylinder, Forward inclined
124 cm3
49 × 66 mm (1.93 × 2.60 in)
9.0 : 1
Cylinder arrangement:
Displacement
Bore × Stroke
Compression ratio
Starting system
Lubrication system:
Electric starter
Wet sump
10-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Model
YFA1
Engine oil/transmission oil:
Type
0°
10°
30°
50°
70°
90° 110°
130°F
YAMALUBE 4 (20W40) or SAE20W40
YAMALUBE 4 (10W30) or SAE10W30
SAE 5W30
–20° –10°
10°
20°
30°
50°C
0°
40°
Recommended engine oil/transmission
oil classification:
API Service SE, SF, SG type or higher
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled “ENERGY CONSERVING II”)
contain anti-friction additives which will cause
clutch and/or starter clutch slippage, resulting
in reduced component life and poor engine
performance.
10
Quantity
Engine oil:
Periodic oil change
Total amount
Transmission oil:
1.25 L (1.10 lmp qt, 1.32 US qt)
1.45 L (1.28 lmp qt, 1.53 US qt)
0.6 L (0.53 lmp qt, 0.63 US qt)
10-2
Download from Www.Somanuals.com. All Manuals Search And Download.
Model
YFA1
Air filter:
for engine
for V-belt compartment
Wet type element
Dry type element
Fuel:
Type
Tank capacity
Reserve amount
UNLEADED GASOLINE ONLY
7.0 L (1.54 Imp gal, 1.8 US gal)
1.3 L (0.29 Imp gal, 0.34 US gal)
Carburetor:
Type/manufacturer
VM18SH/MIKUNI
Spark plug:
Type/manufacturer
Gap
CR7HS/NGK
0.6 – 0.7 mm (0.02 – 0.03 in)
Clutch: Type
Dry, centrifugal automatic
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type/Reduction ratio
Reverse
Helical gear/Spur gear
43/14 × 40/17 (7.226)
Chain drive
32/12 (2.666)
V-belt automatic/2.30 – 0.82
(2.30 – 0.82) × 49/14 × 49/15 × 40/17
(61.874 – 22.059)
10-3
Download from Www.Somanuals.com. All Manuals Search And Download.
Model
YFA1
Chassis:
Frame type
Caster angle
Trail
Steel tube
6°
15 mm (0.59 in)
Tire:
Type
Tubeless
Size: Front
Rear
Manufacturer/type:
Front
AT20 × 7 - 8
AT22 × 10 - 8
DUNLOP/KT536A
DUNLOP/KT537A
Rear
Brake:
Front brake type
Operation
Rear brake type
Operation
Drum brake
Right hand operation
Drum brake
Left hand operation
Suspension:
Front
Rear
Swing axle
Swingarm
Shock absorber:
Front
Rear
Coil spring/Oil damper
Coil spring/Oil damper
10-4
Download from Www.Somanuals.com. All Manuals Search And Download.
Model
YFA1
Wheel travel:
Front
Rear
70 mm (2.8 in)
80 mm (3.2 in)
Electrical:
Ignition system
Charging system
C.D.I.
A.C. Magneto
Battery type/voltage, capacity
12N12C-4A-2/12V, 12Ah
Headlight type:
Bulb
Bulb voltage, wattage × quantity:
Headlight
Tail/brake light
Indicator light:
Neutral
12V, 25 W/25 W × 1
12V, 5 W/21W × 1
12V, 3.4 W × 1
12V, 3.4 W × 1
Reverse
Fuse:
5A
10-5
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00430
NOISE REGULATION
TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED:
Federal law prohibits the following acts or the causing thereof: (1) The removal or rendering inopera-
tive by any person other than for purposes of maintenance, repair, or replacement of any device or
element of design incorporated into any new vehicle for the purpose of noise control prior to its sale or
delivery to the ultimate purchaser or while it is in use or (2) the use of the vehicle after such device or
element of design has been removed or rendered inoperative by any person.
“AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE ACTS LISTED
BELOW.”
These acts include tampering with the following systems; i.e., modification, removal, etc.
Muffler
Exhaust system
Intake system
Exhaust pipe
Silencer
11
Air cleaner case
Air cleaner element
Intake duct
11-1
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00431
MAINTENANCE RECORD
Copies of work orders and/or receipts for parts you purchase and install will be required to document
maintenance done in accordance with the warranty. The chart below is printed only as a reminder to
you that the maintenance work is required. It is not acceptable proof of maintenance work.
DATE
OF
SERVICE
MAINTENACE
INTERVAL
SERVICING DEALER
NAME AND ADDRESS
MILEAGE
REMARKS
1 Month
3 Months
6 Months
12 Months
18 Months
24 Months
30 Months
36 Months
42 Months
48 Months
54 Months
60 Months
12-1
Download from Www.Somanuals.com. All Manuals Search And Download.
12
12-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00432
13-1
Download from Www.Somanuals.com. All Manuals Search And Download.
13
13-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00435
14-1
Download from Www.Somanuals.com. All Manuals Search And Download.
14
14-2
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00436
w
Indicates a potential hazard that could result
in serious injury or death.
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00437
PROTECT YOUR INVESTMENT
Download from Www.Somanuals.com. All Manuals Search And Download.
EBU00438
q
WARNING
Improper ATV use can result in SEVERE INJURY or DEATH.
ALWAYS USE
AN APPROVED
HELMET AND
NEVER USE
ON PUBLIC
ROADS
NEVER CARRY
PASSENGERS
NEVER USE
WITH DRUGS
OR ALCOHOL
PROTECTIVE GEAR
NEVER operate:
ALWAYS:
9 without proper training or instruction.
9 at speeds too fast for your skills or the
conditions.
9 use proper riding techniques to avoid
vehicle overturns on hills and rough
terrain and in turns.
9 on public roads - a collision can occur
with another vehicle.
9 avoid paved surfaces - pavement may
seriously affect handling and control.
9 with a passenger - passengers affect
balance and steering and increase risk
of losing control.
LOCATE AND READ OWNER’S MANUAL. FOLLOW ALL INSTRUCTIONS AND WARNINGS.
(For replacement manual, call 1-800-532-1558)
YAMAHA MOTOR CO., LTD.
Download from Www.Somanuals.com. All Manuals Search And Download.
PRINTED IN JAPAN
!
PRINTED ON RECYCLED PAPER
2002·3–0.9×1 (E)
|