Harbor Freight 13 Hp 420Cc Ohv Horizontal Shaft Gas Engine Epa Carb Product Manual

2015-05-27

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Owner’s Manual & Safety Instructions
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 near the assembly diagram (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.

REV 15e

420cc

Horizontal Engine

Using an engine indoors
CAN KILL YOU IN MINUTES.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.

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.

Visit our website at: http://www.harborfreight.com
Email our technical support at: predator@harborfreight.com

ITEM 69736

When unpacking, make sure that the product is intact
and undamaged. If any parts are missing or broken,
please call 1-888-866-5797 as soon as possible.
Copyright© 2012 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.

Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.

Table of Contents
Specifications.............................................. 2
Safety.......................................................... 3
Setup........................................................... 6
Operation..................................................... 9

Maintenance............................................... 14
Troubleshooting.......................................... 18
Warranties.................................................. 23
Parts List and Diagram............................... 20

Specifications
Displacement
Engine Type
Cooling System
Type

Fuel

Capacity

Engine Oil

Type SAE

Capacity
Run Time @ 50% Load
with full tank
Sound Level at 22 feet
Bore x Stroke
Compression Ratio
Rotation viewed from PTO
(power takeoff - the output shaft)

Shaft
Spark Plug
Valve Clearance
Speed

Page 2

Shaft
Keyway
End Tapped
Type
Gap
Intake
Exhaust
Idle

420cc
Horizontal Single Cylinder 4 stroke OHV
EPA phase III compliant
Forced air cooled
87+ octane stabilizer treated
unleaded gasoline
1 Gallon
10W-30 above 32° F
5W30 at 32° F or below
1.16 Quart
3 hr.
108 dB
90 mm x 66 mm
8.5:1
Counterclockwise
1″ x 3.48″
1/4″ (6.35 mm)
3/8″ - 24
NHSP® / Torch® F6TC
0.7 - 0.8 mm
0.10 - 0.15 mm
0.15 - 0.20 mm
1,800 ± 50 RPM

For technical questions, please call 1-888-866-5797.

ITEM 69736

WARNING SYMBOLS AND DEFINITIONS
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.

Safety

Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.

Addresses practices not related to personal injury.

RPM
HP

Property or Statement
Revolutions Per Minute
Horsepower
WARNING marking concerning
Risk of Eye Injury. Wear ANSI-approved
safety goggles with side shields.
Read the manual before
set-up and/or use.
WARNING marking concerning
Risk of Hearing Loss.
Wear hearing protection.

Symbol

Property or Statement

WARNING marking concerning
Risk of Respiratory Injury.
Operate engine OUTSIDE and far away
from windows, doors, and vents.
WARNING marking concerning
Risk of Fire while handling fuel.
Do not smoke while handling fuel.
WARNING marking concerning
Risk of Fire.
Do not refuel while operating.
Keep flammable objects
away from engine.

Safety Warnings

Operation

Symbol

Setup

Symbol Definitions

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.

Maintenance

SAVE THESE INSTRUCTIONS

ITEM 69736

For technical questions, please call 1-888-866-5797.

Page 3

Set up Precautions

Safety

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.

4. Set up and use only on a flat, level,
well‑ventilated surface.

2. Have multiple ABC class fire extinguishers nearby.

6. Use only lubricants and fuel recommended
in the Specifications chart of this manual.

3. Operation of this equipment may create sparks
that can start fires around dry vegetation. A spark
arrestor may be required. The operator should
contact local fire agencies for laws or regulations
relating to fire prevention requirements.

5. Wear ANSI-approved safety goggles, heavy-duty
work gloves, and dust mask/respirator during set up.

Operating Precautions
CARBON MONOXIDE HAZARD
Using an engine indoors CAN KILL
YOU IN MINUTES.
Engine exhaust contains carbon
monoxide. This is a poison you cannot
see or smell.

10. Do not leave the equipment unattended when it is
running. Turn off the equipment (and remove safety
keys, if available) before leaving the work area.

Setup

11. Engine can produce high noise levels.
Prolonged exposure to noise levels above 85
dBA is hazardous to hearing. Always wear
ear protection when operating or working
around the gas engine while it is operating.
12. Wear ANSI-approved safety glasses, hearing
protection, and NIOSH-approved dust mask/
respirator under a full face shield along
with steel-toed work boots during use.

NEVER use inside a home or garage,
EVEN IF doors and windows are open.

Operation

Only use OUTSIDE and far away from windows,
doors, and vents.
2. Keep children away from the equipment,
especially while it is operating.
3. Keep all spectators at least six feet
from the Engine during operation.
4. Fire Hazard! Do not fill gas tank while engine is
running. Do not operate if gasoline has been spilled.
Clean spilled gasoline before starting engine.
Do not operate near pilot light or open flame.

Maintenance

5. Do not touch engine during use. Let
engine cool down after use.
6. Never store fuel or other flammable
materials near the engine.
7. Only use a suitable means of transport and
lifting devices with sufficient weight bearing
capacity when transporting the Engine.
8. Secure the Engine on transport vehicles to
prevent the tool from rolling, slipping, and tilting.
9. Industrial applications must follow
OSHA requirements.
Page 4

13. People with pacemakers should consult their
physician(s) before use. Electromagnetic fields in
close proximity to a heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near the
engine’s magneto or recoil starter.
14. 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.
15. 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.
16. 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.
17. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.
18. Use this equipment with both hands
only. Using equipment with only one hand
can easily result in loss of control.
19. 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.

For technical questions, please call 1-888-866-5797.

ITEM 69736

21. Do not cover the engine or
equipment during operation.
22. Keep the equipment, engine, and
surrounding area clean at all times.
23. 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.
24. Do not operate the equipment with known
leaks in the engine’s fuel system.
25. WARNING: 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.)

26. 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.
27. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.
28. 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.
29. 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.

Setup

20. Parts, especially exhaust system components,
get very hot during use. Stay clear of hot parts.

Service Precautions
b. Allow the engine to completely cool.
c. Then, remove the spark plug
cap from 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.
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.
4. Wear ANSI-approved safety goggles,
heavy-duty work gloves, and dust
mask/respirator 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.

7. Store equipment out of the reach of children.

Operation

a. Turn the engine switch to its “OFF” position.

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.
8. Follow scheduled engine and
equipment maintenance.
Refueling:
1. Do not smoke, or allow sparks, flames,
or other sources of ignition around the
equipment, especially when refuelling.
2. Do not refill the fuel tank while the
engine is running or hot.
3. Do not fill fuel tank to the top. Leave a little
room for the fuel to expand as needed.
4. Refuel in a well-ventilated area only.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.

Maintenance

1. Before service, maintenance, or cleaning:

SAVE THESE INSTRUCTIONS.

ITEM 69736

Safety

Operating Precautions (cont.)

For technical questions, please call 1-888-866-5797.

Page 5

Set Up
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.

Safety

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.
A spark arrestor may be required.
The operator should contact local fire
agencies for laws or regulations relating
to fire prevention requirements.

At high altitudes, the engine’s carburetor, governor
(if so equipped), 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.
The emission control system for this Generator’s 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.

WARNING! DO NOT INSTALL THIS ENGINE ON A VEHICLE.
NOT FOR HIGHWAY USE. FOLLOW ALL APPLICABLE LAWS FOR INSTALLATION AND USE.

Setup

WARNING! If you do not connect a battery to the positive battery cable,
wrap its terminal securely with electrical tape (sold separately).

Battery Setup Instructions
1. Place a fully charged, lead-acid 12 volt,
300 CCA, 36 Ah battery (not included) in
a stable, flat location near the engine.
2. Only use cables sized to match their length
according to the following chart:

Cable Gauge

Maximum
Cable Length

6
4
2

5′
7′
12′

Operation

(lower gauge numbers
mean thicker cables)

Motor Starter Assembly
Starting Relay

4. Attach the negative cable to the
negative battery terminal.
5. Connect the negative cable securely to one
of the engine mounting bolts, as shown in
the diagram below. Connect cable securely to
prevent disconnection and short circuits.

Connect Negative
Battery Cable to a
Mounting Bolt
6. Coat the terminals and cable ends with
a corrosion-preventive coating.

Maintenance

3. Attach the positive cable from the positive
battery terminal to the Positive Terminal on
the starter solenoid (uncovered terminal),
shown above. Connect cable securely to
prevent disconnection and short circuits.

Page 6

For technical questions, please call 1-888-866-5797.

ITEM 69736

Engine Controls
Fuel Cap

Safety

Air Filter

Engine
Switch

Setup

Starter
Handle

Muffler

Throttle

Dipstick

Choke
Fuel Valve

Starter

Operation

Oil Drain Plug

Serial
Number
Location

ITEM 69736

For technical questions, please call 1-888-866-5797.

Maintenance

(Write on front
cover of manual.)

Page 7

High Altitude Operation Above 3000 feet
WARNING! TO PREVENT SERIOUS INJURY FROM FIRE:
Follow instructions in a well-ventilated area away from ignition sources.
If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke.

Safety

NOTICE Warranty void if necessary adjustments are not made for high altitude use.
At high altitudes, the engine’s carburetor, governor (if so equipped), 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. The fuel system on this engine may be influenced by
operation at higher altitudes. Proper operation can be ensured by installing an altitude kit at altitudes higher than
3000 ft. above sea level. At elevations above 8000 ft, the engine may experience decreased performance, even
with the proper main jet. Operating this engine without the proper altitude kit installed may increase the engine’s
emissions and decrease fuel economy and performance. The kit should be installed by a qualified mechanic.
1. Turn off the engine.
2. Close the fuel valve.
3. Place a bowl under the fuel cup to catch any spilled fuel.

Setup

CAUTION! Carburetor bowl may have gas in it which will leak upon removing the bolt.
4. Unthread the bolt holding the fuel cup.
5. Remove the bolt, Bolt Seal, fuel cup, Fuel Cup Seal and Main Jet from the body of the carburetor assembly.
A carburetor screwdriver (not included) is needed to remove and install the Main Jet.
Note: The mixing tube is held in place by the Main Jet and might fall out when it is removed.
If it falls out, replace it in the same orientation before replacing the Main Jet.
6. Replace the Main Jet with the replacement Main Jet needed for your altitude range (part 1a or 2a).
Note: The Fuel Cup Seal and Bolt Seal may be damaged during removal
and should be replaced with the new ones from the kit.

Operation

7. Replace the Fuel Cup Seal (4a), fuel cup,
Bolt Seal (3a), and bolt. Tighten in place.

Carburetor
Assembly

CAUTION: Do not cross thread bolt when tightening.
Finger tighten first and then use a wrench to
make sure the bolt is properly threaded.

Fuel Cup Seal

8. Wipe up any spilled fuel and allow excess to evaporate
before starting engine. To prevent FIRE, do not start the
engine while the smell of fuel hangs in the air.

Mixing Tube

(might remain
inside carburetor)

Main Jet

High Altitude Kit Parts List - A

Maintenance

Part
1a
2a
3a
4a

Description
Main Jet 3000-6000 ft.
Main Jet 6000-8000 ft.
Bolt Seal
Fuel Cup Seal

Qty
1
1
1
1

Fuel Cup
Bolt Seal
Bolt

Page 8

For technical questions, please call 1-888-866-5797.

ITEM 69736

Operation
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual
including all text under subheadings therein before set up or use of this product.

Safety

Pre-Start Checks
Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting.
If any problems are found, do not use equipment until fixed properly.
Checking and Filling Engine Oil
NOTICE: Your Warranty is VOID if the engine’s
crankcase is not properly filled with oil before
each use. Before each use, check the oil level.
Do not run the engine with low or no engine oil.
Running the engine with no or low engine oil
WILL permanently damage the engine.

Full level

2. Close the Fuel Valve.
3. Clean the top of the Dipstick and the
area around it. Remove the Dipstick
by threading it counterclockwise, and
wipe it off with a clean lint free rag.

4. Reinsert the Dipstick without threading it in and
remove it to check the oil level. The oil level
should be up to the full level as shown above.
5. If the oil level is at or below the low mark add the
appropriate type of oil until the oil level is at the
proper level. SAE 10W‑30 oil is recommended
for general use. (The SAE Viscosity Grade chart
on page 15 in the Service section shows other
viscosities to use in different average temperatures.)

Setup

1. Make sure the engine is stopped and is level.

6. Thread the dipstick back in clockwise.

Checking and Filling Fuel

1. Clean the Fuel Cap and the area around it.
2. Unscrew and remove the Fuel Cap.
3. If needed, fill the Fuel Tank to about 1 inch
under the fill neck with 87 octane or higher
unleaded gasoline that has been treated with
a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.

Note: Do not use gasoline containing more than
10% ethanol (E10). Do not use E85 ethanol.
Note: Do not use gasoline that has been stored in a
metal fuel container or a dirty fuel container. It can
cause particles to enter the carburetor, affecting
engine performance and/or causing damage.
4. Then replace the Fuel Cap.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.

Maintenance

WARNING! TO PREVENT SERIOUS
INJURY FROM FIRE:
Fill the fuel tank in a well-ventilated area
away from ignition sources. If the engine is
hot from use, shut the engine off and wait
for it to cool before adding fuel.
Do not smoke.

Starting the Engine
Before Starting the Engine
Before starting the engine:
a. Follow the Set Up Instructions in the equipment manual to prepare the equipment.
b. Inspect the equipment and engine.
c. Fill the engine with the proper amount and type of both fuel and oil.
d. Read the Equipment Operation section in the equipment manual.
ITEM 69736

Operation

NOTICE: Do not run the engine with too little oil.
The engine will be permanently damaged.

For technical questions, please call 1-888-866-5797.

Page 9

Manual Start

Safety

1. To start a cold engine, move the Choke to the
CHOKE position.
To restart a warm engine, leave the Choke in the
RUN position.

CHOKERUN

2. Open the Fuel Valve.

Setup

OFF

3. Slide the Throttle or Speed Control Lever to 1/3
away from the SLOW position (the “turtle”).
Note: Some tools have a Speed Control Lever located
elsewhere on the tool which functions the same as the
Throttle. Use the Speed Control Lever in place of the
Throttle when the tool is so equipped.

Operation

O
OFF

Maintenance

4. Turn the Engine Switch on.

5. Grip the Starter Handle of the Engine loosely and pull
it slowly several times to allow the gasoline to flow into
the Engine’s carburetor. Then pull the Starter Handle
gently until resistance is felt. Allow Cable to retract fully
and then pull it quickly. Repeat until the engine starts.

ON
I

Note: Do not let the Starter Handle snap back against the engine.
Hold it as it recoils so it doesn't hit the engine.

Page 10

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ITEM 69736

6. Allow the Engine to run for several seconds.
Then, if the Choke lever is in the CHOKE position,
move the Choke Lever very slowly to its RUN position.

Safety

Note: Moving the Choke Lever too
fast could stall the engine.
CHOKERUN

IMPORTANT: Allow the engine to run at no load for five minutes with no
load after each start‑up so that the engine can stabilize.
7. Adjust the Throttle as needed.
8. Break-in Period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 3 hours of use. During this period:

Setup

• Do not apply a heavy load to the equipment.
• Do not operate the engine at its maximum speed.
c. The maintenance break-in period will last about 20 hours of use. After this period:
• Change the engine oil.
Under normal operating conditions subsequent maintenance follows the schedule
explained in the MAINTENANCE AND SERVICING section.

1. To stop the engine in an emergency,
turn the Engine Switch off.

OFF

Operation

Stopping the Engine

2. Under normal conditions, use the following procedure:
a. Slide the Throttle or Speed Control
Lever to SLOW (the “turtle”).
b. Turn the Engine Switch off.

Maintenance

c. Close the Fuel Valve.

OFF

ITEM 69736

For technical questions, please call 1-888-866-5797.

Page 11

Electric Start (if equipped)

Safety

1. To start a cold engine, move the Choke to the
CHOKE position.
To restart a warm engine, leave the Choke in the
RUN position.

CHOKERUN

Setup

2. Open the Fuel Valve.

OFF

3. Slide the Throttle or Speed Control Lever to 1/3
away from the SLOW position (the “turtle”).

Operation

Note: Some tools have a Speed Control Lever located
elsewhere on the tool which functions the same as
the Throttle. Use the Speed Control Lever in place
of the Throttle when the tool is so equipped.

ON
4. Turn the Engine Switch to START.

Maintenance
Page 12

OFF

START

For technical questions, please call 1-888-866-5797.

START

ITEM 69736

5. Allow the Engine to run for several seconds.
Then, if the Choke lever is in the CHOKE position,
move the Choke Lever very slowly to its RUN position.

Note: Moving the Choke Lever too
fast could stall the engine.

Safety

CHOKERUN

IMPORTANT: Allow the engine to run at no load for five minutes with no
load after each start‑up so that the engine can stabilize.
6. Adjust the Throttle as needed.
7. Break-in Period:
a. Breaking-in the engine will help to ensure proper equipment and engine operation.
b. The operational break-in period will last about 3 hours of use. During this period:

Setup

Operation

Stopping the Engine

OFF

1. To stop the engine in an emergency,
turn the Engine Switch off.

2. Under normal conditions, use the following procedure:
a. Slide the Throttle or Speed Control
Lever to SLOW (the “turtle”).
b. Turn the Engine Switch off.

Maintenance

c. Close the Fuel Valve.

OFF

ITEM 69736

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Page 13

Maintenance

WARNING

Safety

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:
Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect
the spark plug cap before performing any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE:
Do not use damaged equipment. If abnormal noise, vibration, or excess
smoking occurs, have the problem corrected before further use.
Follow all service instructions in this manual. The engine may fail critically if not serviced properly.
Many maintenance procedures, including any not detailed in this manual, will need to be
performed by a qualified technician for safety. If you have any doubts about your ability to safely
service the equipment or engine, have a qualified technician service the equipment instead.

Cleaning, Maintenance, and Lubrication Schedule
Setup

Note: This maintenance schedule is intended solely as a general guide. If performance decreases or if
equipment operates unusually, check systems immediately. The maintenance needs of each piece of equipment
will differ depending on factors such as duty cycle, temperature, air quality, fuel quality, and other factors.
Note: The following procedures are in addition to the regular checks and maintenance
explained as part of the regular operation of the engine and equipment.
Before
Each Use

Procedure

Monthly or
Every 3 mo. or Every 6 mo. or
every 20
50 hr. of use 100 hr. of use
hr. of use

Yearly or
every 300
hr. of use

Every
2 Years

Brush off outside of engine
Check engine oil level
Check air cleaner
Check deposit cup

Operation

Change engine oil

Clean/replace air cleaner
Check and clean spark plug
1. Check/adjust idle speed
2. Check/adjust valve clearance
3. Clean fuel tank, strainer
and carburetor

4. Clean carbon build-up from
combustion chamber
Replace fuel line if necessary

**
**

*Service more frequently when used in dusty areas.
**These items should be serviced by a qualified technician.
Maintenance
Page 14

For technical questions, please call 1-888-866-5797.

ITEM 69736

Checking and Filling Fuel

Engine Oil Change

CAUTION! Oil is very hot during operation and can
cause burns. Wait for engine to cool before changing oil.

1. Clean the Fuel Cap and the area around it.

4. Remove the drain plug and, if possible,
tilt the crankcase slightly to help drain
the oil out. Recycle used oil.

3. If needed, fill the Fuel Tank to about 1 inch
under the fill neck with 87 octane or higher
unleaded gasoline that has been treated with
a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.
Note: Do not use gasoline containing more than
10% ethanol (E10). Do not use E85 ethanol.
Note: Do not use gasoline that has been stored in a
metal fuel container or a dirty fuel container. It can
cause particles to enter the carburetor, affecting
engine performance and/or causing damage.

Safety

2. Close the Fuel Valve.
3. Place a drain pan (not included) underneath
the crankcase’s drain plug.

5. Replace the drain plug and tighten it.
6. Clean the top of the Dipstick and the
area around it. Remove the Dipstick
by threading it counterclockwise, and
wipe it off with a clean lint free rag.

Full level

4. Then replace the Fuel Cap.
5. Wipe up any spilled fuel and allow excess
to evaporate before starting engine.
To prevent FIRE, do not start the engine
while the smell of fuel hangs in the air.

Setup

2. Unscrew and remove the Fuel Cap.

1. Make sure the engine is stopped and is level.

7. Add the appropriate type of oil until the oil level is at
the full level. SAE 10W‑30 oil is recommended for
general use.
The SAE Viscosity Grade chart shows other
viscosities to use in different average temperatures.

SAE Viscosity Grades

Operation

30
10W-30
5W-30
-20

Average outdoor temperature

100°F

8. Thread the dipstick back in clockwise.

Maintenance

CAUTION! Do not run the engine with too little oil.
The engine will be permanently damaged.

ITEM 69736

For technical questions, please call 1-888-866-5797.

Page 15

Air Filter Element Maintenance
1. Remove the air filter cover and the air filter elements
and check for dirt. Clean as described below.
2. Cleaning:

Safety

• For “paper” filter elements:
To prevent injury from dust and debris,
wear ANSI-approved safety goggles,
NIOSH‑approved dust mask/respirator, and
heavy-duty work gloves. In a well-ventilated
area away from bystanders, use pressurized
air to blow dust out of the air filter.
• For foam filter elements:
Wash the 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.
3. Install the cleaned filter. Secure the
Air Cleaner Cover before use.

Spark Plug Maintenance
Spark
Plug
Cap

1. Disconnect spark plug cap from end of plug.
Clean out debris from around spark plug.
2. Using a spark plug wrench, remove the spark plug.

Setup

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.
Use only NHSP®/Torch® F6TC spark plug.
NOTICE: Using an incorrect spark
plug may damage the engine.
4. When installing a new spark plug, adjust the
plug’s gap to the specification on the Technical
Specifications chart. Do not pry against the
electrode, the spark plug can be damaged.

Operation

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 tighten
about 1/2-2/3 turn more.
Non-gasket-style: Finger-tighten until
the plug contacts the head, then
tighten about 1/16 turn more.
NOTICE: Tighten the spark plug properly.
If loose, the spark plug will cause the engine
to overheat. If overtightened, the threads
in the engine block will be damaged.
6. Apply dielectric spark plug boot protector
(not included) to the end of the spark
plug and reattach the wire securely.

Maintenance
Page 16

For technical questions, please call 1-888-866-5797.

ITEM 69736

When the equipment is to remain idle for longer than 20
days, prepare the Engine for storage as follows:

c. Replace spark plug, but leave
spark plug cap disconnected.

1. CLEANING:
Wait for Engine to cool, then clean Engine with
dry cloth. NOTICE: Do not clean using water.
The water will gradually enter the Engine
and cause rust damage. Apply a thin coat
of rust preventive oil to all metal parts.

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).

To protect the fuel tank during storage, fill the
tank with gasoline that has been treated with
a fuel stabilizer additive. Follow fuel stabilizer
manufacturer’s recommendations for use.
Refer to Checking and Filling Fuel on page
“Checking and Filling Fuel” on page 9.
WARNING! TO PREVENT SERIOUS
INJURY FROM FIRE:
Fill tank in a well-ventilated area away from
ignition sources. If the engine is hot from
use, shut the engine off and wait for it to
cool before adding fuel. Do not smoke.
3. LUBRICATION:
a. Change engine oil.

NOTICE: During extended storage periods the
Engine must be started every 3 months and allowed
to run for 15 – 20 minutes or the Warranty is VOID.
6. AFTER STORAGE:
Before starting the Engine during or after
storage, keep in mind that untreated gasoline
will deteriorate quickly. Drain the fuel
tank and change to fresh fuel if untreated
gasoline has been sitting for a month, if
treated gasoline has been sitting beyond the
fuel stabilizer’s recommended time period,
or if the Engine does not start.

Maintenance

Operation

b. Clean out area around spark plug.
Remove spark plug and pour one tablespoon of
engine oil into cylinder through spark plug hole.

5. STORAGE AREA:
Cover and store in a dry, level, well-ventilated
area out of reach of children. Storage area should
also be away from ignition sources, such as
water heaters, clothes dryers, and furnaces.

Setup

2. FUEL:

4. BATTERY:
Disconnect battery cables (if equipped).
Recharge batteries monthly while in storage.

Safety

Storage

ITEM 69736

For technical questions, please call 1-888-866-5797.

Page 17

Troubleshooting
Possible Causes

Probable Solutions

Engine will not start

FUEL RELATED:
1. No fuel in tank or fuel valve closed.

FUEL RELATED:
1. Fill fuel tank with fresh 87+ octane stabilizertreated unleaded gasoline and open fuel valve.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Move Choke to CHOKE position.

Safety

Problem

2. Choke not in CHOKE
position, cold engine.
3. Gasoline with more than 10%
ethanol used. (E15, E20, E85, etc.)

4. Low quality or deteriorated, old
gasoline.

Setup

5. Carburetor not primed.
6. Dirty fuel passageways.
7. Carburetor needle stuck.
Fuel can be smelled in the air.
8. Too much fuel in chamber.
This can be caused by the
carburetor needle sticking.
9. Clogged Fuel Filter.

3. Clean out ethanol rich gasoline from fuel
system. Replace components damaged by
ethanol. Use fresh 87+ octane stabilizer-treated
unleaded gasoline only.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
4. Use fresh 87+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Pull on Starter Handle to prime.
6. Clean out passageways using fuel additive.
Heavy deposits may require further cleaning.
7. Gently tap side of carburetor float
chamber with screwdriver handle.
8. Turn Choke to RUN position.
Remove spark plug and pull the start handle
several times to air out the chamber. Reinstall
spark plug and set Choke to CHOKE position.
9. Replace Fuel Filter.

Operation
Maintenance

IGNITION (SPARK) RELATED:
1. Spark plug cap not
connected securely.
2. Spark plug electrode wet or dirty.
3. Incorrect spark plug gap.
4. Spark plug cap broken.
5. Circuit breaker tripped
(electric start models only).
6. Incorrect spark timing or
faulty ignition system.

IGNITION (SPARK) RELATED:
1. Connect spark plug cap properly.

COMPRESSION RELATED:
1. Cylinder not lubricated. Problem
after long storage periods.
2. Loose or broken spark plug.
(Hissing noise will occur
when trying to start.)
3. Loose cylinder head or damaged
head gasket. (Hissing noise will
occur when trying to start.)
4. Engine valves or tappets
mis‑adjusted or stuck.

COMPRESSION RELATED:
1. Pour tablespoon of oil into spark plug hole.
Crank engine a few times and try to start again.
2. Tighten spark plug. If that does not work,
replace spark plug. If problem persists,
may have head gasket problem, see #3.
3. Tighten head. If that does not remedy problem,
replace head gasket.

2. Clean spark plug.
3. Correct spark plug gap.
4. Replace spark plug cap.
5. Reset circuit breaker. Check wiring and
starter motor if breaker continues to trip.
6. Have qualified technician diagnose/
repair ignition system.

4. Have qualified technician diagnose/
repair ignition system.

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

Page 18

For technical questions, please call 1-888-866-5797.

ITEM 69736

1. Spark plug cap loose.
2. Incorrect spark plug gap or
damaged spark plug.
3. Defective spark plug cap.
4. Old or low quality gasoline.

5. Incorrect compression.

Engine stops
suddenly

1. Low oil shutdown.
2. Fuel tank empty or full of impure or
low quality gasoline.

3. Defective fuel tank cap
creating vacuum, preventing
proper fuel flow.
4. Faulty magneto.
5. Disconnected or improperly
connected spark plug cap.

1. Check wire connections.
2. Re-gap or replace spark plug.
3. Replace spark plug cap.
4. Use only fresh 87+ octane stabilizer-treated
unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
5. Diagnose and repair compression.
(Use Engine will not start:
COMPRESSION RELATED section.)
1. Fill engine oil to proper level. Check
engine oil before EVERY use.
2. Fill fuel tank with fresh 87+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
3. Test/replace fuel tank cap.

4. Have qualified technician service magneto.
5. Secure spark plug cap.

Engine stops when
under heavy load

1. Dirty air filter
2. Engine running cold.

1. Clean or replace element.
2. Allow engine to warm up prior
to operating equipment.

Engine knocks

1. Old or low quality gasoline.

1. Fill fuel tank with fresh 87+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Do not exceed equipment’s load rating.
3. Have qualified technician diagnose
and service engine.

2. Engine overloaded.
3. Incorrect spark timing, deposit
buildup, worn engine, or other
mechanical problems.
Engine backfires

1. Impure or low quality gasoline.

2. Engine too cold.
3. Intake valve stuck or
overheated engine.
4. Incorrect timing.

1. Fill fuel tank with fresh 87+ octane stabilizertreated unleaded gasoline.
Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).
2. Use cold weather fuel and oil
additives to prevent backfiring.
3. Have qualified technician diagnose
and service engine.
4. Check engine timing.

ITEM 69736

For technical questions, please call 1-888-866-5797.

Maintenance

Follow all safety precautions whenever diagnosing or servicing the equipment or engine.

Safety

Engine misfires

Probable Solutions

Setup

Possible Causes

Operation

Problem

Page 19

Parts List and Diagram

Parts List
Safety

Part

Setup
Operation
Maintenance

1
2
3
4
5
6
7
8
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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

Page 20

Description

Gasket, Cylinder Head
Cover Subassembly, Cylinder Head
Gasket, Cylinder Head Cover
Tube, Breather
Bolt, Cylinder Head
Washer Set
Stud
Stud
Pin
Bolt, Cylinder Head
Plug, Spark
Head Subassembly, Cylinder
Crankcase Subassembly
Seal, Oil
Sensor, Engine Oil
Frame, Fuel Tank Installation
Plug, Rubber
Protector, Oil
Bolt
Washer, Flat
Bolt, Drain Plug
Clip
Arm, Governor
Seal, Oil
Cotter
Bolt
Bolt
Washer, Flat
Bearing, Deep Groove Ball
Cover, Crankcase
Gasket, Crankcase
Plug Subassembly, Engine Oil
Dipstick Subassembly, Oil
Pin
Bolt
Bearing, Deep Groove Ball
Gear Asm, Governor
Seal, Oil
Bearing, Deep Groove Ball
Crankshaft Asm.
Ring Set, Oil
Clip, Piston Pin
Piston
Pin, Piston
Rod, Connecting
Ring, The First
Ring, The Second
Camshaft Asm.
Valve, Exhaust
Valve, Intake
Seat, Valve Spring
Retainer, Exhaust Valve
Rotator, Valve
Guide, Seal
Tappet, Valve
Lifter Subassembly, Valve

Qty.
1
1
1
1
1
1
2
2
2
4
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
4
2
1
1
1
1
1
1
2
7
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
2
2

Part
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114

Description

Plate Subassembly, Lifter Stopper
Bolt, Rocker Shaft
Rocker, Valve
Nut, Valve Adjusting
Nut, Valve Lock
Spring, Valve
Retainer, Valve Spring
Starter Asm, Recoil
Bolt
Shroud
Shroud, Cylinder Body
Bolt
Clip
Carburetor Asm.
Gasket, Air Cleaner
Gasket, Carburetor
Plate, Carburetor Insulator
Gasket, Inlet
Nut
Cleaner, Air
Muffler Asm.
Pipe, Exhaust
Gasket, Muffler
Gasket, Exhaust Outlet
Tank, Fuel
Strainer, Fuel
Cover, Fuel Tank
Outlet Subassembly, Fuel Tank Oil
Clamp
Tube, Fuel
Nut
Nut, Flywheel
Pulley,Starter
Impeller
Flywheel Subassembly
Bolt
Clamp, Charge Coil
Coil Subassembly, Charge
Bolt
Coil, Ignition
Control Asm, Throttle
Bolt
Spring, Throttle Valve Returning
Rod, Governor
Support Subassembly, Governor
Nut
Bolt, Governor Support
Spring, Governor
Motor, Starting
Bolt
Bolt
Relay, Starting
Box, Motor Control
Bracket, Starting Relay
Bolt
Bolt

For technical questions, please call 1-888-866-5797.

Qty.
1
2
2
2
2
2
1
1
3
1
1
6
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
4
1
1
2
1
1
1
1
1
1
1
2
2
1
1
1
1
2

ITEM 69736

Safety
35 35
35

35 35
35
35

39
36
37

10
10

47 48 42
11

45
8

27
1

15
27

Setup

52
61

51
57

86
87
88
26

25
28

100

21
20
17

97
98

97 96

Operation

80
79

81 81

106
104

103

105

102

101

108

109 109

107

110

111

Maintenance

81
81

Assembly Diagram

113

112

114

Page 21

For technical questions, please call 1-888-866-5797.

ITEM 69736

Mounting Hole Diagram
Note: Not to scale.

7.72 in. / 196mm

4.13 in. / 105mm

Safety
3.39 in. / 86mm

4.06 in. / 103mm

Setup

Power Take-Off Diagram
Note: Not to scale.

Ø3.625 in. / 92mm

(30°)

3.48 in. / 88.5mm

0.25 in. / 6.35mm

Ø5.75 in.
/ 146mm

1.1 in. / 28mm
2.2 in. / 56mm
2.84 in. / 72.2mm

5.25 in. / 133.5mm

Operation

Ø5 in. /
127mm

Ø1 in. / 25.4mm

Ø1.17 in. / 29.7mm

0.36 in. / 9.13mm

3/8-24UNF

Ø6.5 in. / 165.1mm

(45°)

PLEASE READ THE FOLLOWING CAREFULLY

Maintenance

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.
Record Product’s Serial Number Here:

Note: If product has no serial number,
record month and year of purchase instead.
Page 22

Note: Some parts are listed and shown for
illustration purposes only, and are not available
individually as replacement parts.

For technical questions, please call 1-888-866-5797.

ITEM 69736

Warranties

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.
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

Setup

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 this product is free from defects in materials and workmanship for the
period of 90 days from the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity, improper
installation, 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.

Safety

Limited 90 Day Warranty

Emission Control System Warranty
California and United States Emission Control
Defects Warranty Statement

Harbor Freight Tools Emission Control Defects
Warranty Coverage

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 2014-2015 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 within the United States, new off-road, spark-ignition
engines certified for model year 2014-2015, 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.

Engines are warranted for a period of two (2) years relative 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.

Where a warrantable condition exists, HFT will repair your engine
at no cost to you including diagnosis, parts and labor.

Manufacturer’s Warranty Coverage

If you have any questions regarding your warranty rights and
responsibilities, you should contact the Harbor Freight Tools Customer
Service Department at 1-888-866-5797.

Maintenance

The 2014-2015 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.

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 HFT cannot deny warranty solely for the lack
of receipts or for your failure to ensure the performance of all
scheduled maintenance.
• 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 warranty
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.

Operation

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.

ITEM 69736

For technical questions, please call 1-888-866-5797.

Page 23

Harbor Freight Tools Emission Control Defects
Warranty Provisions
1. Length of Coverage
HFT warrants to a first retail purchaser and each subsequent
purchaser that the engine is free from defects in materials and
workmanship that cause the failure of warranted parts for a
period of two (2) years after the date of delivery to the first retail
purchaser.

2. No Charge Repair or Replacement
Repair or replacement of any warranted part will be performed at
no charge to the owner if the work is performed through a warranty
station authorized by HFT. For emissions warranty service, contact
the HFT Customer Service Department at 1-888-866-5797.

3. Consequential Damages Coverage
Coverage under this warranty shall also extend to the failure of any
engine components caused by the failure of any warranted part
while it is still covered under this warranty.

4. Coverage Exclusions
Warranty claims shall be filed in accordance with the provisions
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:
a) Use of parts which are not authorized by HFT
b) Improper installation, adjustment or repair of
the engine or of any warranted part unless
performed by an authorized warranty center
c) Failure to follow recommendations on fuel
use contained in the Owner’s Manual
d) Improper or inadequate maintenance of any warranted parts
e) Repairs performed outside of the authorized
warranty service dealers
f) 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 maintenance 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.

6. Warranted Parts
1)

Fuel Metering System
i) Carburetor and its internal parts.
ii) Air/fuel ratio feedback and control system.
iii) Cold start enrichment system.
iv) Fuel Tank.
2) Air Induction System
i) Controlled hot air intake system.
ii) Intake manifold.
iii) Air filter.
3) Ignition System
i) Spark Plugs.
ii) Magneto or electronic ignition system.
iii) Spark advance/retard system.
4) Exhaust Gas Recirculation (EGR) System (if so equipped)
i) EGR valve body, and carburetor spacer.
ii) EGR rate feedback and control system.
5) Air Injection System
i) Air pump or pulse valve.
ii) Valves affecting distribution of flow.
iii) Distribution manifold.
6) Catalyst or Thermal Reactor System (if so equipped)
i) Catalytic converter.
ii) Thermal reactor.
iii) Exhaust manifold.
7) Particulate Controls
Traps, filters, precipitators, and any other device
used to capture particulate emissions.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-888-866-5797
www.harborfreight.com

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Harbor Freight 13 Hp 420Cc Ohv Horizontal Shaft Gas Engine Epa Carb Product Manual

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