800 RATED WATTS/900 MAXIMUM WATTS
PoRTAblE GENERAToR
Model 66619
oPERATIoN AND SERvIcE INSTRUcTIoNS
DANGER
Using a generator indoors cAN KIll YoU IN
MINUTES.
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NEvER use inside a home
or garage, EvEN IF doors
and windows are open.
only use oUTSIDE
and far away from
windows, doors, and
vents.
Read this material before using this product.
Failure to do so can result in serious injury.
SAvE ThIS MANUAl.
©
®
Copyright 2008 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
Revised Manual 10e
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cAUTIoN, without the
safety alert symbol, is
used to address practices not
related to personal injury.
SAvE ThIS MANUAl
Keep this manual for the safety warnings
and precautions, assembly, operating,
inspection, maintenance and cleaning
procedures. Write the product’s serial number
in the back of the manual (or month and year
of purchase if product has no number). Keep
this manual and the receipt in a safe and dry
place for future reference.
WARNING! Read all instructions.
Failure to follow all instructions
listed below may result in fire,
serious injury and/or DEATh. The
warnings and precautions discussed
in this manual cannot cover all
possible conditions and situations that
may occur. It must be understood
by the operator that common sense
and caution are factors which cannot
be built into this product, but must be
supplied by the operator.
IMPoRTANT SAFETY
INFoRMATIoN
In this manual, on the labeling, and
all other information provided with
this product:
SAvE ThESE INSTRUcTIoNS
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. obey all
safety messages that follow
this symbol to avoid possible
injury or death.
SET UP PREcAUTIoNS
1. Gasoline fuel and fumes are flammable,
and potentially explosive. Use proper
fuel storage and handling procedures.
Do not store fuel or other flammable
materials nearby.
DANGER indicates a
hazardous situation
2. Have multiple ABC class fire
extinguishers nearby.
which, if not avoided, will result
in death or serious injury.
3. Operation of this equipment may create
sparks that can start fires around dry
vegetation.
WARNING indicates a
hazardous situation
which, if not avoided, could
result in death or serious injury.
The operator should contact local fire
agencies for laws or regulations relating
to fire prevention requirements.
cAUTIoN, used with
the safety alert
4. Set up and use only on a flat, level, well-
ventilated surface.
symbol, indicates a hazardous
situation which, if not avoided,
could result in minor or moderate
injury.
5. Wear ANSI-approved safety goggles and
heavy-duty work gloves during set up.
6. Use only oil and fuel recommended
in the “Specifications” section of this
manual.
NoTIcE is used to
address practices not
related to personal injury.
SKU 66619
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9. Wear ANSI-approved safety goggles,
hearing protection, and heavy duty work
gloves during use.
oPERATING PREcAUTIoNS
1.
cARboN MoNoXIDE
hAzARD
10. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close proximity
to a heart pacemaker could cause
Using a generator indoors
cAN KIll YoU IN MINUTES.
Generator exhaust contains
carbon monoxide. This is a poison you
cannot see or smell.
pacemaker interference or pacemaker
failure. Caution is necessary when near
the engine’s magneto or recoil starter.
11. Use only accessories that are
recommended by Harbor Freight Tools
for your model. Accessories that may
be suitable for one piece of equipment
may become hazardous when used on
another piece of equipment.
NEVER use inside a home or garage,
EVEN IF doors and windows are open.
12. Do not operate in explosive
atmospheres, such as in the presence
of flammable liquids, gases, or dust.
Gasoline-powered engines may ignite
the dust or fumes.
Only use OUTSIDE and far away from
windows, doors, and vents.
13. Stay alert, watch what you are doing
and use common sense when operating
this piece of equipment. Do not use
this piece of equipment while tired or
under the influence of drugs, alcohol or
medication.
2. Keep all safety guards in place and in
proper working order at all times.
3. NEVER place fingers, hands, or body
near the Generator when it is running.
Do not lean or reach over the Generator
when the machine is running.
14. Do not overreach. Keep proper footing
and balance at all times. This enables
better control of the equipment in
unexpected situations.
4. Keep all people (except the operator) a
minimum of six feet from the Generator
during operation.
15. Dress properly. Do not wear loose
clothing or jewelry. Keep hair, clothing
and gloves away from moving parts.
Loose clothes, jewelry or long hair can
be caught in moving parts.
5. Do not transport the Generator with the
Engine running.
6. Do not sit or stand on this machine.
16. Parts, especially exhaust system
components, get very hot during use.
Stay clear of hot parts.
7. Do not tilt the machine while the Engine
is running.
8. Do not leave the Generator unattended
when it is running. Turn off the Engine
before leaving the area.
17. Do not cover the Generator during
operation.
REv 10b
SKU 66619
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18. Keep the equipment, Engine, and
surrounding area clean at all times.
SERvIcE PREcAUTIoNS
1. before service, maintenance, or
cleaning:
19. Use the equipment, accessories, etc., in
accordance with these instructions and
in the manner intended for the particular
type of equipment, taking into account
the working conditions and the work to
be performed. Use of the equipment for
operations different from those intended
could result in a hazardous situation.
a. Turn the Power Switch of the Engine
to its “oFF” position.
b. Allow the Engine to completely cool.
c. Then, remove the Spark Plug.
2. Keep all safety guards in place and in
proper working order. Safety guards
include muffler, air cleaner, mechanical
guards, and heat shields, among other
guards.
20. Do not operate the equipment with
known leaks in the Engine’s fuel system.
21. This product contains or, when used,
produces a chemical known to the State
of California to cause cancer and birth
defects or other reproductive harm.
(California Health & Safety Code §
25249.5, et seq.)
3. Do not alter or adjust any part of the
equipment or its Engine that is sealed by
the manufacturer or distributor. Only a
qualified service technician may adjust
parts that may increase or decrease
governed Engine speed.
22. When spills of fuel or oil occur, they must
be cleaned up immediately. Dispose
of fluids and cleaning materials as per
any local, state, or federal codes and
regulations. Store oil rags in a bottom-
ventilated, covered, metal container.
4. Wear ANSI-approved safety goggles and
heavy duty work gloves during service.
5. Maintain labels and nameplates on
the equipment. These carry important
information. If unreadable or missing,
contact Harbor Freight Tools for a
replacement.
23. Before use, check for misalignment
or binding of moving parts, breakage
of parts, and any other condition that
may affect the equipment’s operation.
If damaged, have the equipment
serviced before using. Many accidents
are caused by poorly maintained
equipment.
6. Have the equipment serviced by a
qualified repair person using only
identical replacement parts. This will
ensure that the safety of the equipment
is maintained. Do not attempt any
service or maintenance procedures
not explained in this manual or any
procedures that you are uncertain about
your ability to perform safely or correctly.
24. Use the correct equipment for the
application. Do not modify the
equipment and do not use the equipment
for a purpose for which it is not intended.
7. Store equipment out of the reach of
children.
8. Follow scheduled Engine and equipment
maintenance.
9. Refueling Precautions:
For technical questions, please call 1-800-444-3353. Page 5
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• Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
10. cAUTIoN: This generator is not
intended to power sensitive electronic
*
equipment without the addition of an
appropriate line conditioner and surge
protector (both not included). Sensitive
electronic equipment should be operated
on approved inverter type generators or
pure sine wave generators.
• Do not refill the Fuel Tank while the
engine is running or hot.
• Do not fill Fuel Tank to the top. Leave
a little room for the fuel to expand as
needed.
If the plugged in product operates
abnormally or unusually slow,
• Refuel in a well-ventilated area only.
immediately stop using the generator
as a power source. Always read and
adhere to the instruction manual of the
product to be powered, to make sure that
it can be safely and efficiently powered
by a portable generator.
Note: When using a generator to
provide home standby electricity, a
transfer switch (sold separately) is
needed to prevent back feeding power
into the utility line.
Connections for standby power to a
building electrical system must be made
by a qualified electrician. The connection
must isolate the generator power from
utility power, and must comply with all
applicable laws and electrical codes.
WARNING: Improper connections to
a building electrical system can allow
electrical current from the generator
to backfeed into the utility lines. Such
backfeed may electrocute utility
company workers or others who contact
the lines during a power outage, and the
generator may explode, burn, or cause
fires when utility power is restored.
Consult the utility company or a qualified
electrician.
* Sensitive electronic equipment
includes, but is not limited to, audio/
video equipment, some television sets,
computers, and printers.
SKU 66619
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2. All connections and conduits from
the Generator to the load must only
be installed by trained and licensed
electricians, and in compliance with
all relevant local, state, and federal
electrical codes and standards, and
other regulations where applicable.
Ac APPlIcATIoNS
1. Before connecting an appliance or
power cord to the generator: Make sure
that it is in good working order. Faulty
appliances or power cords can create a
potential for electrical shock.
2. If an appliance begins to operate
abnormally, becomes sluggish or
stops suddenly, turn it off immediately.
Disconnect the appliance, and determine
whether the problem is the appliance, or
if the rated load capacity of the generator
has been exceeded.
3. The Generator must be earth-grounded
in accordance with all relevant electrical
codes and standards before operation.
• A 10-gauge copper wire should be
used to connect the ground terminal
of the Generator to a grounding rod.
A wire that is too thin may not provide
sufficient electrical current carrying
capacity to be an adequate ground
path.
3. Make sure that the electrical rating of
the tool or appliance does not exceed
that of the generator. Never exceed the
maximum power rating of the generator.
Power levels between rated and
maximum may be used for no more than
30 minutes.
FIGURE A
4. Substantial overloading will open the
circuit breaker. Exceeding the time limit
for maximum power operation or slightly
overloading the generator may not switch
the circuit breaker or circuit protector
OFF, but will shorten the service life of
the generator.
10 GAUGE
GRoUND
WIRE
SAvE ThESE
INSTRUcTIoNS.
GRoUNDING RoD
GENERAToR PREcAUTIoNS
• The other end of the ground wire must
be securely fastened to an approved
ground source. (See Figure A.) Refer
to local regulations for ground source
information. If unsure of regulations or
procedures, obtain assistance from a
licensed or certified electrician.
Set Up:
1. Do not connect the Generator directly
into a home’s utility electrical line. Do
not plug this Generator into an outlet
in the home. Connecting a generator
directly to a utility power supply can
“back feed” along the power lines and kill
or injure utility workers working on the
lines.
4. Insulate all connections and
disconnected wires.
REv 09c
SKU 66619
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5. Connect the Generator only to a
load or electrical system (120 V~)
that is compatible with the electrical
characteristics and rated capacities of
the Generator.
bASIc SPEcIFIcATIoNS
50 Parts 89+ octane
Required
unleaded gasoline
Mixture
mixed with 1 part
Fuel
(50:1)
2-cycle oil
6. Set up the Generator outdoors in a well-
ventilated, dry area, away from building
air intakes. The Generator should be
protected from direct exposure to rain
and snow. Do not set up the Generator
on a conductive surface such as a metal
deck.
Capacity
1.1 Gallons
Note: Additional specifications found in the
TECHNICAL ENGINE SPECIFICATIONS
chart in this manual.
The emission control system for this
engine is warranted for standards set by the
U.S. Environmental Protection Agency and
by the California Air Resources Board (also
known as CARB). For warranty information,
refer to the last pages of this manual.
operation:
1. Do not attempt to connect or disconnect
load connections while standing in water,
or on wet or soggy ground.
At high altitudes, the engine’s carburetor,
governor, and any other parts that control
the fuel-air ratio will need to be adjusted by
a qualified mechanic to allow efficient high-
altitude use and to prevent damage to the
engine and any other devices used with this
product.
2. Do not touch electrically energized parts
of the Generator and interconnecting
cables or conductors with any part of
the body, or with any non-insulated
conductive object.
3. Use only Class BC or Class ABC fire
extinguishers on electrical fires.
UNPAcKING
4. Do not overload the Generator.
Overloading can cause fires in the
electrical cords, in addition to Generator
and appliance damage.
When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353l as soon as
possible.
Service:
Keep all electrical equipment clean
and dry. Replace any wiring where the
insulation is cracked, cut, abraded, or
otherwise degraded. Replace terminals
that are worn, discolored, or corroded.
Keep terminals clean and tight.
REv 09c
SKU 66619
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Starting the Engine
ThIS UNIT cAN PoWER ThE
FolloWING ITEMS
Inspect the Generator looking for
damaged, loose, and missing parts
before set up and starting. If any
problems are found, do not use the
unit until properly repaired.
RUNNING START-UP
ITEM
WATTS
750
WATTS
Ten 75 Watt Light Bulbs
1/4HP Compressor
1/6HP Motor
600
500
900
800
600
700
3/8” Drill
400
checking and Filling The Fuel Tank:
Mini Refrigerator
15 Amp Battery Charger
String Trimmer
Table/Box Fan
Radio
400
380
350
200
cAUTIoN! Your Warranty is VOID if the
Engine’s Fuel Tank (73) is not filled with
the proper mixture (50:1) of unleaded
gasoline and 2-cycle oil before each
use. Before each use, check the fuel
level. Do not run the Engine with an
improper unleaded gasoline/2-cycle oil
mixture. Running the Engine with an
improper mixture WILL permanently
damage the Engine.
500
300
50
NoTE: Wattages listed above are estimates
for that type of equipment only. Check
nameplate wattages on all loads before
connecting to Generator.
oPERATING INSTRUcTIoNS
1. The Fuel Tank (73) holds approximately
Read the ENTIRE IMPoRTANT
SAFETY INFoRMATIoN
1 gallon of fuel.
section at the beginning of this
manual including all text under
subheadings therein before set up
or use of this product.
FIGURE b
1 GAlloN
UNlEADED
GASolINE
2.5 FlUID oUNcES
2-cYclE oIl
To PREvENT
SERIoUS INjURY:
operate only with proper spark
arrestor installed. operation of
this equipment may create
sparks that can start fires around
dry vegetation.
The operator should contact
local fire agencies for laws or
regulations relating to fire
prevention requirements.
APPRovED
coNTAINER
Note: For additional information regarding the
parts listed in the following pages, refer
to the Assembly Diagram near the end of
this manual.
2. To obtain the proper gasoline and
2-cycle oil mixture, mix 2.5 fluid ounces
of 2-cycle oil with 1 gallon of unleaded
gasoline into an approved container.
Then slowly shake the container to
thoroughly mix the gasoline/2-cycle oil.
(See Figure b.)
REv 10b
SKU 66619
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Start Procedure:
before starting the Engine:
FIGURE c
FUEl
TANK
cAP
(76)
a. Inspect the Generator and Engine.
b. Fill the Fuel Tank (73) with the
proper amount and type of
unleaded gasoline and 2-cycle oil.
(See Figures b and c.)
c. NOTE: Only after the Generator
has stabilized and is running
smoothly should an appliance or
tool be plugged into the AC Outlet
of the Generator.
STRAINER
(74)
FIGURE D
3. Remove the Fuel Tank Cap (76) and
check the fuel level.
FUEl
SWITch
(80)
(See Figure c.)
WARNING! To PREvENT
SERIoUS INjURY FRoM FIRE:
Fill the Fuel Tank (73) in a well-
ventilated area away from ignition
sources. Do not smoke.
4. To fill the Fuel Tank (73), first wipe off the
Fuel Tank Cap (76) and the surrounding
area.
“oPEN”
(See Figure c.)
1. Turn the Engine Fuel Switch (80) to its
“oPEN” position. (See Figure D.)
5. Unscrew, and remove the Fuel Tank Cap
(76). (See Figure c.)
FIGURE E
6. Remove the Strainer (74) and remove
any dirt and debris. Then replace the
Strainer. (See Figure c.)
choKE
lEvER
(82)
7. Fill the Fuel Tank (73) to about 1 inch
under the fill neck of the Tank with the
pre-mixed unleaded gasoline/2-cycle oil
mixture.
“RUN”
“choKE”
8. Then replace the Fuel Tank Cap (76).
(See Figure c.)
2. Turn the Engine Choke Lever (82) to its
“choKE” position. Set the Choke Lever
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in the “RUN” position when starting a
warm Engine. (See Figure E.)
choKE
lEvER
(82)
FIGURE h
FIGURE F
“oN”
“RUN”
PoWER
SWITch
“choKE”
5. After the Engine starts and warms up,
slowly move the Choke Lever (82) to its
“RUN” position. (See Figure h.)
3. Then turn the Engine Power Switch to its
“oN” position. (See Figure F.)
6. IMPORTANT: Allow the Engine to run at
no load until warm (approx. 3 minutes)
after each start-up to allow the Engine to
stabilize.
REcoIl
STARTER
FIGURE G
hANDlE
(42)
break-in Period:
1. Breaking-in the Engine will help to
ensure proper equipment and Engine
operation, and will extend the Engine’s
lifespan. The warranty is void if the
Engine is not broken in properly. The
first 25 hours of operation is the break-in
period.
4. Grasp the Recoil Starter Handle (42) and
pull slowly until resistance is felt. While
holding the Handle, allow the Starter
Rope to rewind slowly. Then, pull the
Starter Handle with a rapid, full arm
stroke. Once again while holding the
Handle, allow the Rope to rewind slowly.
Repeat as necessary, until the Engine
starts. (See Figure G.)
• During this time frame, DO NOT
exceed 75% of the Generator’s load
limit. In other words, the maximum
load during this break-in period should
be no more than 600 watts.
• After the first 25 hours of use:
• Change the unleaded gasoline/2-cycle
oil fuel mixture.
Under normal operating conditions
subsequent maintenance follows
the schedule explained in the
MAINTENANCE AND SERVICING
section.
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Equipment operation
FIGURE j
load And circuit breaker:
1. The total combined load through the
outlet on the Generator must not exceed
the rated maximum power (800 watts) of
the unit.
FIGURE I
2. Plug the power cord of the 120 volt
appliance/tool into the 120 volt AC Outlet
on the Generator. (See Figure j.)
RESET
oFF
3. NoTE: Do not allow the generator
to completely run out of fuel with
devices attached. A generator’s
output may sharply spike as it runs
out of fuel, causing damage to
attached devices.
cIRcUIT
bREAKER
2. Always reduce the load if the AC Circuit
Breaker turns off. Once the load is
reduced, press the Breaker to reset the
Generator and continue operation.
(See Figure I.)
FIGURE K
calculating Power Draw:
Power draw can be calculated by
multiplying volts and amps. The
resulting number is wattage.
• Never exceed the rated maximum
wattage (800) for the Generator or
outlet.
3. When finished using the appliance/tool,
unplug its power cord from the AC Outlet
on the Generator. (See Figure K.)
• Refer to appliance/tool owner’s
manuals to determine the wattage of
electrical load devices.
Generator Shut off:
• Long power cords and extension cords
draw additional power. Keep cord
length at a minimum.
1. Remove all electrical load devices from
the Generator. (See Figure K.)
2. Allow the Engine to run for approximately
3 minutes with no electrical load.
Ac Application:
1. Allow the Engine to run at no load until
warm (approx. 3 minutes) after each
start-up to allow the Engine to stabilize.
SKU 66619
REV 10e
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FIGURE l
“oFF”
PoWER
SWITch
3. Turn off the Generator’s Power Switch to
stop the Engine.
(See Figure l.)
FIGURE M
FUEl
SWITch
(80)
“oFF”
4. Turn the Fuel Switch (80) to its “oFF”
position. (See Figure M.)
5. Allow the Generator to completely cool
before storing.
REv 09c, 09g, 09k
SKU 66619
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about your ability to safely service
the equipment or Engine, have a
qualified technician service the
equipment instead.
SPEcIFIcATIoNS
Air Cooled, 2-Stroke, Single Cylinder,
Engine Type
Horizontal Shaft.
Recoil Starter
2.0 H.P.
Engine Starter Type
Engine Power Rating
Displacement
Note: Warranty is void if proper maintenance
and servicing procedures are not
followed.
63cc
50 Parts 89+ Octane Unleaded
Gasoline Mixed with 1 Part 2-Cycle Oil
Required Fuel Mixture (50:1)
Fuel Tank Capacity
Spark Plug Gap
1.1 Gallons
0.028”~0.031”
No
Spark Plug Arrestor Present
Air Filter Element Maintenance:
Engine Run Time
with Full Tank at
50% Load
Approximately 5 Hours
FIGURE N
AC Receptacle
Type
NEMA120 volt / 3-prong, grounded (Qty. 1)
60 Hz with 7 AMP Circuit Breaker
Generator
Rated Output
Power
800 Watts
A
Generator
Maximum
900 Watts
Output Power
Accessories
Spark Plug Wrench (Qty. 1)
SERvIcING
b
c D
To PREvENT
SERIoUS INjURY
FRoM AccIDENTAl STARTING:
Turn the Power Switch of the
Engine to its “oFF” position, wait
for the Engine to cool, and
remove the Spark Plug wire
before performing any
E
F
inspection, maintenance, or
cleaning procedures.
1. Wipe off the Air Cleaner Cover. Then
To PREvENT
SERIoUS INjURY
remove the Cover. (See Figure N.)
FRoM EqUIPMENT FAIlURE:
Do not use damaged equipment.
If abnormal noise, vibration, or
excess smoking occurs, have the
problem corrected before further
use.
2. Remove the Air Filter Element.
3. Wash the Air Filter Element in warm
water and mild detergent several times.
Rinse. Squeeze out excess water and
allow it to dry completely. Soak the Filter
in lightweight oil briefly, then squeeze out
the excess oil.
Maintenance Procedures
4. Install the new Air Filter Element or the
cleaned Filter. Secure the Air Cleaner
Cover before use.
Many maintenance procedures,
including those not detailed in this
manual, will need to be performed
by a qualified technician for
safety. If you have any doubts
REv 09k
SKU 66619
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Spark Plug Maintenance:
cleaning, Maintenance, and
lubrication Schedule: Engine
1. Disconnect Spark Plug Wire from end
of plug. Clean out debris from around
Spark Plug.
Note: This maintenance schedule is
intended solely as a general guide. If
performance decreases or if the Engine
operates unusually, check systems
immediately. The maintenance needs
of this Engine will differ depending on
factors such as temperature, air quality,
fuel quality, and other factors.
2. Using the spark plug wrench provided,
remove the Spark Plug.
3. Inspect the Spark Plug:
If the electrode is oily, clean it using
a clean, dry rag. If the electrode has
deposits on it, polish it using emery
paper. If the white insulator is cracked
or chipped, the Spark Plug needs to be
replaced.
Note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular operation
of the Engine.
After Initial 25 operation hours:
0.028” ~ 0.031”
a. Change unleaded gasoline and 2-cycle
oil fuel mixture.
Every 25 operation hours Thereafter:
a. Clean/replace Air Filter Element.
b. Inspect/clean Spark Plug.
FIGURE o
Every 50 operation hours:
4. When installing a new Spark Plug, adjust
the Plug’s gap to the specification on the
Technical specification chart and in the
illustration below. Do not pry against the
electrode or the insulator, the Spark Plug
can be damaged. (See Figure o.)
a. Change unleaded gasoline and 2-cycle
oil fuel mixture.
Every 100 operation hours:
a. Replace Spark Plug.
b. Replace Air Filter Element.
5. Install the new Spark Plug or the cleaned
Spark Plug into the Engine. Gasket-
style: Finger-tighten until the gasket
contacts the cylinder head, then about
1/2-2/3 turn more.
Note: All maintenance procedures scheduled
for 25, 50, and 100 operation hours
should be performed at least yearly.
Non-gasket-style: Finger-tighten until the
plug contacts the head, then about 1/16
turn more.
Every 300 operation hours:
a. Clean Fuel Tank and Carburetor
assembly.
b. Clean carbon build-up from Combustion
Chamber.
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Storage
1. Wait for the Engine to cool, then clean
the Engine with a clean cloth.
2. When the equipment is to remain idle for
longer than 20 days, prepare the Engine
for storage as follows:
a. Empty the Fuel Tank and drain all fuel
lines.
b. Clean out area around Spark Plug.
Remove Spark Plug and pour one
tablespoon of engine oil into Cylinder
through Spark Plug hole.
c. Reinstall Spark Plug, but leave the
Spark Plug Wire disconnected.
d. Pull Starter Handle to distribute oil
in Cylinder. Stop after one or two
revolutions when you feel the Piston
start the compression stroke (when you
start to feel resistance).
3. Apply a thin coat of rust preventive oil to
all uncoated metal parts.
4. Cover and store in a dry, well-ventilated
area out of reach of children.
Maintenance and cleaning
Schedule: Generator
before Every Use:
a. Check to make sure all bolts and nuts
are tight.
b. Check for any damage to the Generator.
If damaged, do not use until repaired by
a qualified service technician.
After Every Use:
a. Allow the unit to completely cool. Then
clean the exterior of the Generator with
a clean cloth.
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TRoUblEShooTING - ENGINE
Problem
Possible causes
Probable Solutions
FUEL RELATED:
FUEL RELATED:
Engine will not
start
1. Improper gasoline/2 cycle oil mix.
1. Mix 50 parts unleaded gasoline with 1
part 2-cycle oil.
2. No fuel in tank or fuel valve closed.
2. Fill fuel tank and open fuel valve.
3. Choke not in start position, especially
with cold engine.
3. Move choke to start position if engine
is cold.
4. Low quality or deteriorated, old
gasoline.
4. Use only fresh 89+ octane unleaded
gasoline and 2-cycle oil mixture.
5. Carburetor not primed.
5. Prime carburetor by pressing priming
bulb specified number of times (if
equipped).
6. Dirty fuel passageways blocking fuel
6. Clean out passageways using fuel
additive. Heavy deposits may require
further cleaning.
flow.
7. Carburetor needle stuck. Fuel can be
smelled in the air.
7. Gently tap side of carburetor float
chamber with screwdriver handle.
8. Too much fuel in chamber. This can be 8. Turn choke to run position. Remove
caused by a stuck carburetor needle.
spark plug and pull the start handle
several times to air out the chamber.
Reinstall spark plug and set choke to
start position.
IGNITION (SPARK) RELATED:
IGNITION (SPARK) RELATED:
1. Spark plug wire not connected
securely.
1. Connect spark plug wire properly.
2. Spark plug electrode wet or dirty.
3. Incorrect spark plug gap.
2. Clean spark plug.
3. Correct spark plug gap.
4. Spark plug wire or spark plug broken.
4. Replace spark plug wire and/or spark
plug.
5. Have qualified technician diagnose/
5. Incorrect spark timing or faulty ignition
system.
repair ignition system.
COMPRESSION RELATED:
COMPRESSION RELATED:
1. Cylinder not lubricated. Problem after
long storage periods.
1. Pour tablespoon of oil into spark plug
hole. Crank engine a few times and try
to start again.
2. Loose or broken spark plug. (Hissing
noise will occur when trying to start.)
2. Tighten spark plug. If that does not
work, replace spark plug. If problem
persists, may have head gasket
problem, see #3 below.
3. Tighten head. If that does not remedy
problem, replace head gasket.
3. Loose cylinder head or damaged head
gasket. (Hissing noise will occur when
trying to start.)
4. Adjust valve clearance. If that does not
work, clean or replace valves/tappets.
4. Engine valves or tappets misadjusted
or stuck.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.
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TRoUblEShooTING - ENGINE
Problem
Possible causes
Probable Solutions
1. Spark plug wire loose.
1. Check wire connections.
Engine misfires
2. Incorrect spark plug gap or damaged
spark plug.
2. Re-gap or replace spark plug.
3. Defective spark plug wire.
4. Old or low quality gasoline.
3. Replace spark plug wire.
4. Use only fresh 89+ octane unleaded
gasoline and 2-cycle oil mixture.
5. Incorrect compression.
5. Diagnose and repair compression. (Use
Engine will not start: coMPRESSIoN
RElATED section.)
1. Fuel tank empty or full of impure or low 1. Fill fuel tank with fresh 89+ octane
Engine stops
suddenly
quality gasoline.
unleaded gasoline and 2-cycle oil
mixture.
2. Test/replace fuel tank cap.
2. Defective fuel tank cap creating
vacuum, preventing proper fuel flow.
3. Properly adjust idle speed.
3. Improper idle speed.
4. Have qualified technician diagnose and
4. Faulty magneto, incorrect timing, or
clogged carburetor.
service engine.
1. Old or low quality gasoline.
1. Fill fuel tank with fresh 89+ octane
unleaded gasoline and 2-cycle oil
mixture.
Engine knocks
2. Do not exceed equipment’s load rating.
2. Engine overloaded.
3. Have qualified technician diagnose and
3. Incorrect spark timing, deposit buildup,
worn engine, or other mechanical
problems.
service engine.
1. Impure or low quality gasoline.
1. Fill fuel tank with fresh 89+ octane
unleaded gasoline and 2-cycle oil
mixture.
Engine backfires
2. Use cold weather fuel and oil additives
1. Engine too cold.
to prevent backfiring.
3. Move choke to run position after engine
warms up.
2. Choke not open after engine warm.
4. Qualified technician must adjust engine
at altitudes greater than 5,000 feet
above sea level.
3. Engine not properly adjusted for high
altitude operation.
5. Have qualified technician diagnose and
4. Intake valve stuck, choke stuck,
incorrect timing, clogged carburetor, or
overheated engine.
service engine.
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.
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TRoUblEShooTING - GENERAToR UNIT
Possible solutions shown below should only be carried out by a qualified technician.
Problem
Possible cause
Possible Solutions
Follow all safety precautions whenever diagnosing or servicing the
equipment or engine.
SKU 66619
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PARTS lIST
Part
1
Description
Left Crankcase
qty.
1
2
2
1
2
2
2
4
4
2
1
1
2
1
2
2
1
1
1
4
1
2
1
1
1
1
1
1
1
1
1
2
2
1
10
1
1
7
2
1
1
Part
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
Description
Recoil Starter Assy.
qty.
1
1
1
4
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
2
1
1
2
1
1
4
1
1
1
1
1
1
2
1
1
1
2
Right Crankcase
Bearing (6004)
Intake Valve Gasket
Intake Valve Assy.
Flange Bolt (M6 x 20)
Stud (AM6 x 60)
Intake Gasket
3
4
Hole Circlip (#42)
Oil Seal (20 x 30 x 7)
Pin (10 x 7 x 14)
Stud (AM6 x 50)
Flange Nut (M6)
Flange Bolt (M6 x 45)
Stud (AM6 x 100)
Oil Seal (6 x 12 x 7)
Governor Shaft
5
6
7
Carburetor
8
Carburetor Gasket (B)
Carburetor Gasket (A)
Supporting Plate
Compression Spring
Cross Round Head Bolt (M6 x 40)
Rod Link
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Washer (6 x 10)
Governor Fork
Tension Spring
Governor Spring
Control Panel
Cross Round Head Bolt (M3 x 8)
Spring Washer (#3)
Governor Arm
Capacitor
Collar Bushing
Self Tapping Screw (ST4.2 x 13)
Alternator Stator
Alternator Rotor
Flange Bolt (M8 x 156)
Rear Cover
Weight Comp
Flange Bolt (M6 x 16)
Crankshaft Assy.
Circlip
Piston Pin
Flange Bolt (M6 x 80)
Washer (#6)
Roller Bearing (14 x 10 x 14)
Piston
Flange Bolt (M6 x 10)
Muffler
Second Piston Ring
First Piston Ring
Cylinder Gasket
Cylinder
Muffler Gasket
Flange Bolt (M6 x 16)
CDI Winding
Cylinder Cap Gasket
Cylinder Cap
Spark Plug
Absorber
Flange Bolt (M6 x 105)
Nut (M6 x 18)
Fuel Tank
Strainer
Cylinder Cap Cover
Flange Bolt (M6 x 12)
Ignition Coil Assy.
Clamp
Fuel Cup
Fuel Tank Cap
Handle
Cross Round Head Bolt (M6 x 30)
Washer (#6)
Spring Washer (#6)
Cross Round Head Bolt (M6 x 16)
Flywheel
Fuel Switch
Rubber
Flange Nut (M10 x 1.25)
Choke Lever
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ASSEMblY DIAGRAM
SKU 66619
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ASSEMblY DIAGRAM - coNTINUED
SKU 66619
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WIRING DIAGRAM
SKU 66619
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lIMITED 1 YEAR / 90 DAY
WARRANTY
EMISSIoN coNTRol SYSTEM
WARRANTY
Harbor Freight Tools Co. makes every effort to assure
that its products meet high quality and durability standards,
and warrants to the original purchaser that for a period of
ninety days from date of purchase that the engine/motor,
the belts (if so equipped), and the blades (if so equipped)
are free of defects in materials and workmanship. Harbor
Freight Tools also warrants to the original purchaser, for a
period of one year from date of purchase, that all other parts
and components of the product are free from defects in
materials and workmanship (90 days if used by a professional
contractor or if used as rental equipment). This warranty
does not apply to damage due directly or indirectly, to
misuse, abuse, negligence or accidents, repairs or alterations
outside our facilities, normal wear and tear, or to lack of
maintenance. We shall in no event be liable for death, injuries
to persons or property, or for incidental, contingent, special or
consequential damages arising from the use of our product.
Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation
of exclusion may not apply to you. THIS WARRANTY IS
ExPRESSLY IN LIEU OF ALL OTHER WARRANTIES,
ExPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS.
california and United States Emission control Defects
Warranty Statement
The California Air Resources Board (herein CARB), the
United States Environmental Protection Agency (herein EPA),
and Harbor Freight Tools (herein HFT) are pleased to explain the
emission control system warranty on your 1995 and later Small
Off-Road Engine (herein engine). In California, the engine must
be designed, built and equipped to meet the State’s stringent
anti-smog standards. Elsewhere in the United States, new off-
road, spark-ignition engines certified for model year 1997 and
later, must meet similar standards set forth by the EPA. HFT
must warrant the emission control system on your engine for
the periods of time described below, provided there has been
no abuse, neglect or improper maintenance of your engine.
Your emission control system may include parts such as the
carburetor or fuel-injection system, and the ignition system.Also
included may be hoses, belts, connectors and other emission-
related assemblies.
Where a warrantable condition exists, HFT will repair your
engine at no cost to you including diagnosis, parts and labor.
Manufacturer’s Warranty coverage
The 1995 and later engines are warranted for two (2) years.
If any emission-related part on your engine is defective, the part
will be repaired or replaced by HFT.
To take advantage of this warranty, the product or part
must be returned to us with transportation charges prepaid.
Proof of purchase date and an explanation of the complaint
must accompany the merchandise. If our inspection verifies
the defect, we will either repair or replace the product at our
election or we may elect to refund the purchase price if we
cannot readily and quickly provide you with a replacement.
We will return repaired products at our expense, but if we
determine there is no defect, or that the defect resulted from
causes not within the scope of our warranty, then you must
bear the cost of returning the product.
harbor Freight Tools Emission control Defects Warranty
coverage
Engines are warranted for a period of two (2) years rela-
tive to emission control parts defects, subject to the provisions
set forth below. If any emission related part on your engine is
defective, the part will be repaired or replaced by HFT.
1.
owner’s Warranty Responsibilities
As the engine owner, you are responsible for the performance
of the required maintenance listed in your Owner’s Manual.
HFT recommends that you retain all receipts covering
maintenance on your engine, but HFTcannot deny warranty
solely for the lack of receipts or for your failure to ensure
the performance of all scheduled maintenance.
This warranty gives you specific legal rights and you
may also have other rights which vary from state to state.
3491 Mission Oaks Blvd.
PO Box 6009 • Camarillo, CA 93011
(800) 444-3353
As the engine owner, you should, however, be aware that HFT
may deny you warranty coverage if your engine or a part
has failed due to abuse, neglect, improper maintenance,
or unapproved modifications.
You are responsible for shipping your engine to a HFT war-
ranty station as soon as a problem exists. Contact the
HFT Customer Service department at the number below
to make shipping arrangements. The warranty repairs
should be completed in a reasonable amount of time, not
to exceed 30 days.
If you have any questions regarding your warranty rights
and responsibilities, you should contact the Harbor Freight Tools
Customer Service Department at 1-800-444-3353.
SKU 66619
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harbor Freight Tools Emission control Defects Warranty
Provisions
6. Warranted Parts
1. Fuel Metering System
1. length of coverage
i.
Carburetor and its internal parts.
HFT warrants to a first retail purchaser and each subse-
quent purchaser that the engine is free from defects in
materials and workmanship that cause the failure of war-
ranted parts for a period of two (2) years after the date of
delivery to the first retail purchaser.
ii. Fuel pump (if so equipped).
iii. Cold start enrichment system.
2. Air Induction System
i.
Intake pipe/manifold.
ii. Air cleaner.
2. No charge Repair or Replacement
3. Ignition System
Repair or replacement of any warranted part will be per-
formed at no charge to the owner if the work is performed
through a warranty station authorized by HFT. For emis-
sions warranty service, contact the HFT Customer Service
Department at 1-800-444-3353.
i.
Spark plug.
ii. Magneto ignition system.
4. Catalyst System (if so equipped)
i.
Exhaust pipe stud.
3. consequential Damages coverage
ii. Muffler.
Coverage under this warranty shall also extend to the failure
of any engine components caused by the failure of any war-
ranted part while it is still covered under this warranty.
iii. Catalytic converter (if so equipped).
5. Miscellaneous Items Used in Above Systems
i.
Vacuum, temperature and time sensitive valves
and switches.
4. coverage Exclusions
Warranty claims shall be filed in accordance with the provi-
sions of the HFT warranty policy explained in the box at
the top of the previous page. HFT shall not be liable for
any loss of use of the engine, for any alternative usage,
for any damage to goods, loss of time, or inconvenience.
Warranty coverage shall also be excluded for any part which
fails, malfunctions, or is damaged due to failure to follow
the maintenance and operating instructions set forth in the
Owner’s Manual including, but not limited to:
ii. Hoses, belts, connectors, and assemblies.
PlEASE READ ThE
FolloWING cAREFUllY
THE MANUFACTURER AND/OR DISTRIBUTOR
HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE
TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION
OR WARRANTY OF ANY KIND TO THE BUYER
THAT HE OR SHE IS QUALIFIED TO MAkE ANy
REPAIRS TO THE PRODUCT, OR THAT HE OR SHE
IS QUALIFIED TO REPLACE ANy PARTS OF THE
PRODUCT. IN FACT, THE MANUFACTURER AND/
OR DISTRIBUTOR ExPRESSLY STATES THAT ALL
REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAKEN BY CERTIFIED AND LICENSED
TECHNICIANS, AND NOT BY THE BUYER. THE
BUYER ASSUMES ALL RISK AND LIABILITY ARISING
OUT OF HIS OR HER REPAIRS TO THE ORIGINAL
PRODUCT OR REPLACEMENT PARTS THERETO,
OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.
1. Use of parts which are not authorized by HFT
2. Improper installation, adjustment or repair of the en-
gine or of any warranted part unless performed by an
authorized warranty center
3. Failure to follow recommendations on fuel use con-
tained in the Owner’s Manual
4. Improper or inadequate maintenance of any warranted
parts
5. Repairs performed outside of the authorized warranty
service dealers
6. Alterations by changing, adding to or removing parts
from the engine.
5. Service and Maintenance
Component parts which are not scheduled for replacement
as required maintenance or are scheduled only for regular
inspection to the effect of “repair or replace as necessary”
are warranted for the warranty period. Any warranted part
which is scheduled for replacement as required mainte-
nance is warranted for the period of time up to the first
scheduled replacement point for that part. Any replacement
part, provided it is equivalent in durability and performance,
may be used in performance of maintenance or repairs.
The owner is responsible for commissioning a qualified
technician/mechanic to perform all required maintenance,
as outlined in the Inspection, Cleaning, and Maintenance
section in this manual.
Record Product’s Serial Number here:
________________________________
Note:If product has no serial number, record month
and year of purchase instead.
Note:Some parts are listed and shown for illustration
purposes only, and are not available individually
as replacement parts.
SKU 66619
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