Harbor Freight Tools 69734, 69737 Product manual

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.

ITEM 69734/69737

212cc GASOLINE POWERED

PRESSuRE WAShER

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.

Email our technical support at: [e-mail]

When unpacking, make sure that the product is intact

and undamaged. If any parts are missing or broken,

please call 1-800-520-0882 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.

Only use OUTSIDE
and far away from
windows, doors,
and vents.

Visit our website at: http://www.harborfreight.com

Visit our website at: http://www.harborfreight.com

Email our technical support at: [e-mail]

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 .......................................................... 8

SAFETY OPERATION MAINTENANCESETUP

Operation ................................................... 11

Specifications

Displacement 212cc

Engine Type Predator OHV

Pump Brass Axial

Drive Direct

Gun 22 IN. Wand / 20 IN. Lance

Nozzles Quick Connect 0º, 15º, 25º, 40º + Soap Nozzle

Hose Length 26 FT. 7 IN.

Cart Push type with 10 IN. Pneumatic tires

Maintenance .............................................. 16

Troubleshooting ......................................... 20

Warranties ................................................. 22

Parts Lists and Diagrams .......................... 24

Fuel

Engine Oil
(not
included)

Pump Oil (included) 3.75 fl-oz SAE 10W-30 Non-detergent

Engine Speed 3,600 RPM

Water Flow 3 GPM Maximum

Maximum Pressure 2,500 PSI

Bore x Stroke 70 mm x 55 mm

Compression Ratio 8.5:1

Rotation viewed from PTO
(power takeoff - the output shaft)

Spark Plug

Valve Clearance

Type 87+ octane unleaded gasoline

Capacity 1 Gallon / 3.6L

Type (SAE)

Capacity 0.5 Quart / 0.5L

Low Oil Shutdown Yes

10W-30 above 32° F
5W-30 at 32° F or below

Counterclockwise

Type NGK

Gap 0.7 - 0.8 mm

Intake 0.10 - 0.15 mm

Exhaust 0.15 - 0.20 mm

®

BP-6ES / NHSP® / LG® / Torch® F6TC

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.

Item 69734: The emission control system for this Pressure Washer’s engine is warranted for standards set by
the U.S. Environmental Protection Agency. For warranty information, refer to the last pages of this manual.

Item 69737: The emission control system for this Pressure Washer’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.

Page 2 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

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.

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.

Symbol Definitions

Symbol Property or Statement

RPM

HP

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.

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Addresses practices not related to personal injury.

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.

SAFETYOPERATIONMAINTENANCE SETUP

Safety Warnings

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.

SAVE THESE INSTRUCTIONS

Page 3For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Set up Precautions

1. Gasoline fuel and fumes are flammable, and
potentially explosive. Use proper fuel storage
and handling procedures. Do not store fuel

SAFETY OPERATION MAINTENANCESETUP

or other flammable materials nearby.

2. Have multiple ABC class fire extinguishers nearby.

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.

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

5. The work area should have adequate
drainage to reduce the possibility of
a fall due to slippery surfaces.

Operating Precautions

1. 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.

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

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

8. Only use cold Water or pressure washer detergent
in this tool. Do not use caustic materials, solvents,
flammable materials, or detergents not designed for
pressure washers. Use of any such material can
cause injury, or damage this tool or personal property.

9. Do not dry run this product. Dry running
will cause serious damage to the seals.
Make sure the water supply used for the
Pressure Washer is not dirty or sandy.

10. Prior to starting the Pressure Washer in cold weather,
check all of the parts of the unit to make sure ice
has not formed. Do not store the unit anywhere
that the temperature will fall below 32° F (0° C).

5. 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.

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.

2. Keep children away from the equipment,
especially while it is operating.

3. 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.

4. Wear ANSI-approved safety goggles
and hearing protection during use.

6. 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 one.

7. 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.

8. Stay alert, watch what you are doing and use
common sense when operating a piece of equipment.
Do not use a piece of equipment while tired or under
the influence of drugs, alcohol or medication.

9. Do not overreach. Keep proper footing and
balance at all times. This enables better control
of the equipment in unexpected situations.

10. Do not carry the spray handle with your finger on
the trigger, whether engine is operating or not.

11. Use this equipment with both hands
only. Using equipment with only one hand
can easily result in loss of control.

12. 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.

Page 4 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Operating Precautions (cont.)

13. Parts of the Pressure Washer, especially
exhaust system components, get very hot
during use. Stay clear of hot parts.

14. Do not cover the engine or
equipment during operation.

15. Keep the equipment, engine, and
surrounding area clean at all times.

16. 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.

17. Do not operate the equipment with known
leaks in the engine’s fuel system.

18. 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.)

19. WARNING: The brass components of this
product contain lead, a chemical known to
the State of California to cause birth defects
(or other reproductive harm). (California
Health & Safety code § 25249.5, et seq.)

22. 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 use. Many accidents are
caused by poorly maintained equipment.

23. 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.

24. The high pressure water flow can damage
the work surface if not used properly. Always
test the spray in an open area first.

25. When dispensing detergent, apply the detergent
to the cleaning area at low pressure only.
Detergent dispensing only works when the
spray wand is in the low-pressure position.

26. Injection Hazard. The high pressure

water jet produced by this tool can cut
skin or cause injury to hands or eyes.
Do not allow spray to strike you and do

not spray toward people or animals. Do
not spray the tool itself or any electrical wiring/
receptacle.

27. This Pressure Washer is intended for
outdoor residential use only.

SAFETYOPERATIONMAINTENANCE SETUP

20. 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.

21. Keep hands and feet away from moving parts. Do
not reach over or across equipment while operating.

28. In case of an emergency during use, immediately
release the trigger on the spray handle, turn
the engine off and then shut off gas supply
to the engine. Do not set the spray handle
down without turning off the engine.

Page 5For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Vibration Hazard:

This tool vibrates during use. Repeated or
long-term exposure to vibration may cause
temporary or permanent physical injury,

SAFETY OPERATION MAINTENANCESETUP

particularly to the hands, arms and shoulders.
To reduce the risk of vibration-related injury:

1. Anyone using vibrating tools regularly or for an
extended period should first be examined by a
doctor and then have regular medical check­ups to ensure medical problems are not being
caused or worsened from use. Pregnant women
or people who have impaired blood circulation
to the hand, past hand injuries, nervous system
disorders, diabetes, or Raynaud’s Disease should
not use this tool. If you feel any medical or
physical symptoms related to vibration (such as
tingling, numbness, and white or blue fingers),
seek medical advice as soon as possible.

2. Do not smoke during use. Nicotine reduces
the blood supply to the hands and fingers,
increasing the risk of vibration-related injury.

3. Wear suitable gloves to reduce the
vibration effects on the user.

4. Use tools with the lowest vibration when there
is a choice between different processes.

5. Include vibration-free periods each day of work.

6. Grip tool as lightly as possible (while still keeping
safe control of it). Let the tool do the work.

7. To reduce vibration, maintain the tool as
explained in this manual. If any abnormal
vibration occurs, stop use immediately

Page 6 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Service Precautions

1. Before service, maintenance, or cleaning:

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

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. Keep the high pressure hose connected to
the pressure washer and spray gun while the
system is pressurized. Disconnecting the
pressure hose while the unit is pressurized
is dangerous, and may cause injury.

10. 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.

11. Store equipment out of the reach of children.

12. 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. TO PREVENT FUEL LEAKAGE AND

FIRE HAZARD, do not fill fuel above
the bottom of fuel strainer.

SAFETYOPERATIONMAINTENANCE SETUP

6. Do not allow the high pressure hose to come
in contact with any hot part of the unit. The
hose might be damaged, possibly causing
it to burst or leak under high pressure.

7. Maintain labels and nameplates on the
equipment. These carry important information.
If unreadable or missing, contact Harbor
Freight Tools for a replacement.

8. If water is leaking out of the Pressure Washer
immediately turn off the unit. Unplug the
Pressure Washer, and discharge all pressure
before tightening fittings or having repair
work done by a qualified technician.

9. When the engine is running, do not allow
the Pressure Washer to remain idle for more
than two minutes. If allowed to remain idle,
the water in the unit will heat up, possibly
causing damage to the Pressure Washer.

SAVE THESE INSTRUCTIONS.

Max Fuel
DO NOT OVERFILL!

4. Do not fill fuel tank to the top. Leave a little
room for the fuel to expand as needed.

5. Refuel in a well-ventilated area only.

6. 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.

Page 7For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

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 OPERATION MAINTENANCESETUP

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.

Risk of accidental starting; resulting in serious personal injury. Turn the Power Switch
of the equipment to its “OFF” position, wait for the engine to cool, and unplug the spark
plug wire(s) before assembling or making any adjustments to the equipment.

Note: For additional information regarding the

parts listed in the following pages, refer to the
Assembly Diagram near the end of this manual.

Page 8 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Assembly

1. 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.

Dipstick (60A)

Aluminum Pump

Breather Plug

(59A)

Brass Pump

Plug (14A)

Figure A

Replace the Brass Pump Plug (14A) with the

2.
aluminum Pump Breather Plug (59A) and Dipstick
(60A) before first use. The Pump Breather Plug
must be used whenever the pressure washer is
used. The Brass Pump Plug (without the breather
hole) should be used for transporting only.

3. Attach the Handle (14) onto the Frame (17)
with the Handle Bolts (15) and Nuts (16).

5. Pull the Collar at the end of the hose back
and attach the Gun (19) to the hose.

6. Screw the Wand (20) onto the Gun (19)
and secure with the grommet.

7. Choose the right Nozzle (5) for the job. Pull back
the quick connect collar and push the Nozzle
onto the end of the Wand. Make sure the quick
connect collar locks the Nozzle in place.

• Black Nozzle -
Low Pressure
Used with pressure washer detergent.

• White Nozzle -
Wide Spray
Used to clean very large areas.

• Green Nozzle -
Medium Spray
Used to clean large areas.

• Yellow Nozzle -
Narrow Spray
Used to clean small areas.

• Red Nozzle -
Pencil Spray
Intense stream. Only use on hard surfaces such
as concrete or metal. Can damage wood.

8. Connect the water supply to the Water Inlet
Connection on the Water Inlet Body (42A).
The water source must be able to provide a
minimum of five gallons of clean, cold water per

minuteat20PSI.Onlyusea5/8″innerdiameter

(or larger) hose that is rated to meet this capacity.

SAFETYOPERATIONMAINTENANCE SETUP

Detergent Inlet

Connection

(26A)

Outlet

Connector

(35A)

Water Inlet

Connection

Figure 2

4.

Attach the Hose (18) to the Outlet Connector
(35A) on the unit (See Figure 2).

Pressure Regulator Knob (44A)

If using detergent:

Read detergent directions. Connect one end of
the Detergent Inlet Hose (8) to the Detergent Inlet
Connection, and the other end into the container
holding the detergent. Only use detergents specified
for use with Pressure Washers. The Pressure
Washer will draw one gallon of detergent for
every seven gallons of water. Only use the Black
(low pressure) Nozzle when spraying detergents.

Page 9For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Engine Controls

SAFETY OPERATION MAINTENANCESETUP

Air Filter

Fuel Cap

Starter
Handle

Muffler

Throttle

Choke

Oil Drain Plug

Dipstick

Fuel Valve

Engine
Switch

Page 10 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

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.

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.

1. Make sure the engine is stopped and is 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.

Full level

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 17 in the Service section shows other
viscosities to use in different average temperatures.)

SAFETYOPERATIONMAINTENANCE SETUP

Full level

6. Thread the dipstick back in clockwise.

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

Page 11For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Checking Pump Oil Level

1. The Oil pump is filled with 3.75 fl-oz of SAE
10W-30 NON DETERGENT oil at the factory.

Under normal conditions there is no

SAFETY OPERATION MAINTENANCESETUP

reason to add any oil or change the oil.

2. Turn off engine, allow it to cool and
disconnect the spark plug wire.

3. Twist the Dipstick on the Pump Breather Plug
until the arrow on it lines up with the arrow
on the Plug and remove the Dipstick.

4. Remove the Pump Breather Plug from the Pump.

Clear oil

fill hole

Figure B

Look into the hole in the pump housing. If a metal

5.
wheel can be seen extending into the hole,
SLOWLY pull the starter rope until the
hole appears clear, as shown above.

Fill with oil

TOO HIGH

to here

TOO LOW

Figure C

6.

Wipe the Dipstick off with a clean, dry cloth. Insert
the Dipstick into the pump housing and remove it.
The oil level should be at least to the lower (L) notch
on the dipstick, but not above the upper (H) notch.
Add SAE 10W-30 NON-DETERGENT oil as needed.

7. Thread the Pump Breather Plug back into the pump.

8. Align the arrow on the Dipstick with the arrow
on the Plug, insert it, and twist it to secure.

9. Reconnect the spark plug wire.

Checking and Filling Fuel

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.

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 of the Fuel Tank with
87 octane or higher unleaded gasoline.

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.

Page 12 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Starting the Engine

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.

2. Open the Fuel Valve.

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

1

2

Choke RUN

SAFETYOPERATIONMAINTENANCE SETUP

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.

OFF

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.

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

3

ON

O

I

ON

4

5

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.

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

6

Choke RUN

Page 13For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

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:

SAFETY OPERATION MAINTENANCESETUP

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:

• 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.

Stopping the Engine

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.

OFF

OFF

O

I

O

I

c. Close the Fuel Valve.

Page 14 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Pressure Washer Operation

WARNING

Do not direct spray from the pressure washer at a person or an
animal. The water stream could cause serious injury.

CAUTION

Use the pressure washer only on surfaces able to withstand the force of the spray.

1. Replace the non-vented brass oil plug with
the aluminum Pump Breather Plug before
first use. The Pump Breather Plug must be
used whenever the pressure washer is used.
The brass oil plug (without the breather hole)
should be used for transporting only.

2. Choose the Nozzle that best meets the needs
of the job. Only use the Nozzles on surfaces
capable of withstanding the force of the spray.
Only use the Black Nozzle when using pressure
washer detergent. The power of the other
Nozzles will propel mist back at the operator
and can embed detergent into the surface.

3. Pull back the quick connect collar and push the
Nozzle onto the end of the Wand. Make sure the
quick connect collar locks the Nozzle in place.

4. Turn the water supply on and hold down the
Trigger to start the stream. Be aware that
when it is first started, the gun will kick.

5. It is best to start at a low pressure setting, and adjust
the pressure upwards. Test spray the edge of the
surface to be cleaned first to make sure that the
stream is not too strong for the surface. If the stream
damages the surface, turn the Pressure Regulator
Knob counterclockwise to reduce the pressure.
Moving further away from the surface being cleaned
will also reduce the pressure being applied to the
surface. If the stream is still too strong, turn the
engine off, turn the water supply off, discharge the
excess pressure from the gun by squeezing the
Trigger, and change to a lower pressure Nozzle.

6. To increase the pressure, turn the
Pressure Regulator Knob clockwise.

8. Clean vertical and sloped surfaces from the top down.

9. When cleaning horizontal surfaces, occasionally
use the stream to clear the area of excess water.

10. CAUTION Do not allow the Pressure Washer to idle
without the Trigger held down, for more than two
minutes. The water will heat up and damage the
Pressure Washer. RISK OF BURNS! The pump will
also expel very hot water if allowed to idle too long.

11. Hold the Trigger down and move the Wand back
and forth slowly and steadily to pressure wash the
surface. Take special care when spraying surfaces
made of two different materials (brick and mortar,
for example), so as to not damage the softer of
the two materials during pressure washing.

12. If the surface is streaked or uneven at the end
of a job, switch to a Nozzle that has a wider
spray pattern to blend the affected area.

13. When finished; release the Trigger on the
spray handle, turn the engine power switch
to “OFF”, turn the water supply off and
then shut off gas supply to the engine.

14. Squeeze the Trigger to release excess pressure.

15. If Pressure Washer detergent has been
used for the job, run clean water through the
system to eliminate detergent residue.

16. To prevent accidents, turn off the engine and after
the engine has cooled, disconnect its spark plug
wire after use. Drain all water out of the unit.
Clean external parts with clean cloth, then
store the equipment out of children’s reach.

SAFETYOPERATIONMAINTENANCE SETUP

7. Hold the Wand at about a 45° angle when cleaning;
spraying the surface directly could embed dirt into the
surface (especially with the high pressure Nozzles).
Spray at a distance of about three to five feet.

Page 15For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Maintenance

WARNING

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING:

SAFETY OPERATION MAINTENANCESETUP

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

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.

Monthly or

every 20

hr. of use

Procedure

Brush off outside of engine

Check engine oil level

Check air cleaner

Check deposit cup

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

Before

Each Use

*Service more frequently when used in dusty areas.

**These items should be serviced by a qualified technician.

Every 3 mo. or

50 hr. of use

*

Every 6 mo. or

100 hr. of use

Yearly or
every 300
hr. of use

** **

Every

2 Years

**

Page 16 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Checking and Filling Fuel

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.

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 of the Fuel Tank with 87
octane or higher unleaded gasoline. Fill to the
bottom of the fuel strainer ONLY, see below.

Max Fuel
DO NOT OVERFILL!

WARNING! TO PREVENT FUEL
LEAKAGE AND FIRE HAZARD, do not fill
fuel above the bottom of fuel strainer.

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.

SAFETYOPERATIONMAINTENANCE SETUP

Engine Oil Change

CAUTION! Oil is very hot during operation and can

cause burns. Wait for engine to cool before changing oil.

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

2. Close the Fuel Valve.

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

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

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

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

10W-30

Full level

30

5W-30

-20 0 20 40 60 80 100°F

Average outdoor temperature

Thread the dipstick back in clockwise.

8.

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

Page 17For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Air Filter Element Maintenance

1. Remove the air filter cover and the
air filter elements and check for dirt.
Clean or replace as described below.

SAFETY OPERATION MAINTENANCESETUP

2. Cleaning:

• 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.
If this does not get the filter clean, replace it.

Spark Plug Maintenance

Spark

Plug

Cap

• 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 new filter or the cleaned filter.
Secure the Air Cleaner Cover before use.

Recommended Spark Plugs

®

NGK
NHSP® / LG® /TORCH

®

BP-6ES

F6TC

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
Specifications chart. Do not pry against the
electrode, the spark plug can be damaged.

Disconnect spark plug cap from end of plug.

1.
Clean out debris from around spark plug.

2. Using a spark plug wrench, 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.

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.

Page 18 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Storage

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

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.

2. FUEL:

WARNING! TO PREVENT SERIOUS

INJURY FROM FIRE:

Drain 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 draining fuel.

Do not smoke.

a. Place a funnel leading to a proper gasoline

container below the carburetor.

d. Open the fuel valve. After all fuel has

drained, reinstall the drain bolt and sediment
cup (if equipped). Tighten securely.

3. LUBRICATION:

a. Change engine oil.

b. Clean out area around spark plug. Remove

spark plug and pour one tablespoon of engine
oil into cylinder through spark plug hole.

c. Replace spark plug, but leave spark

plug cap 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).

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

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.

SAFETYOPERATIONMAINTENANCE SETUP

Sediment Cup

(some engines)

Drain Plug

Remove the drain bolt from the bottom of the

b.

carburetor bowl and allow the fuel to drain.

c. Remove the small sediment cup next to the bowl

and allow the fuel to drain from there as well.

6. AFTER STORAGE:
Before starting the engine 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.

Page 19For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Troubleshooting

Problem Possible Causes Probable Solutions

Engine will not start FUEL RELATED:

SAFETY OPERATION MAINTENANCESETUP

Engine misfires 1. Spark plug cap loose.

1. No fuel in tank or fuel valve closed.

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.

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.

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.

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.

2. Incorrect spark plug gap or
damaged spark plug.

3. Defective spark plug cap.

4. Old or low quality gasoline.

5. Incorrect compression.

FUEL RELATED:

1. Fill fuel tank and open fuel valve.

2. Move Choke to CHOKE position.

3. Clean out ethanol rich gasoline from fuel
system. Replace components damaged
by ethanol. Use fresh 87+ octane
unleaded gasoline only.

Do not use gasoline with more than
10% ethanol (E15, E20, E85, etc.).

4. Use fresh 87+ octane 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.

IGNITION (SPARK) RELATED:

1. Connect spark plug cap properly.

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.

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.

4. Have qualified technician diagnose/
repair ignition system.

1. Check wire connections.

2. Re-gap or replace spark plug.

3. Replace spark plug cap.

4. Use only fresh 87+ octane 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.)

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

Page 20 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Problem Possible Causes Probable Solutions

Engine stops
suddenly

Engine stops when
under heavy load

Engine knocks 1. Old or low quality gasoline.

Engine backfires 1. Impure or low quality gasoline.

Does not produce
high pressure

Output pressure varies 1. Not enough water supply.

No intake of
chemicals.

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. Dirty air filter

2. Engine running cold.

2. Engine overloaded.

3. Incorrect spark timing, deposit buildup, worn
engine, or other mechanical problems.

2. Engine too cold.

3. Intake valve stuck or overheated engine.

4. Incorrect timing.

1. Diameter of water supply hose too small

2. Water supply is restricted.

3. Not enough water supply.

2. Water inlet screen is clogged.

3. Nozzle is clogged.

4. Nozzle has mineral build up.

1. Chemical hose not properly inserted into unit.

2. Tube cracked or split.

3. Wrong Nozzle.

4. Injector turned off.

5. Injection tube strainer clogged.

6. Nozzle blocked.

7. Dried chemicals in injector.

1. Fill engine oil to proper level. Check
engine oil before EVERY use.

2. Fill fuel tank with fresh 87+ octane
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.

1. Clean or replace element.

2. Allow engine to warm up prior
to operating equipment.

1. Fill fuel tank with fresh 87+ octane
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.

1. Fill fuel tank with fresh 87+ octane
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.

1. Replace hose with a ¾ inch hose.

2. Check water supply hose for

kinks, leaks, or blockage.

3. Open water faucet all the way.

1. Check water supply hose for kinks, leaks,

or blockage. Open faucet all the way.

2. Remove inlet screen and rinse out.

3. Remove Nozzle and clean.

4. Remove Nozzle and clean with vinegar.

1. Push firmly into injector. Replace tube.

2. Switch to black Nozzle.

3. Turn collar counterclockwise.

4. Clean strainer.

5. Clean Nozzle.

6. Dissolve by running warm water

through the injection tube.

7. Run clean water through injector until clear.

SAFETYOPERATIONMAINTENANCE SETUP

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

Page 21For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Warranties

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,

SAFETY OPERATION MAINTENANCESETUP

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.

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.

Emission Control System Warranty

United States Emission Control Defects
Warranty Statement
(for Model 69734)

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 1997 and later Small Off­Road Engine (herein engine). Within the United States, new off-road,
spark-ignition engines certified for model year 1997 and later, must be
designed, built and equipped to meet the stringent anti-smog 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.

California and United States Emission Control
Defects Warranty Statement
(for Model 69737)

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 within 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.

Page 22 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Harbor Freight Tools Emission Control Defects
Warranty Coverage

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.

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.

If you have any questions regarding your warranty rights and

responsibilities, you should contact the Harbor Freight Tools Customer
Service Department at 1-800-520-0882.

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 1-800-520-0882.

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) Fuel pump (if so equipped).

iii) Cold start enrichment system.

2) Air Induction System

i) Intake pipe/manifold.

ii) Air cleaner.

3) Ignition System

i) Spark plug.

ii) Magneto ignition system.

4) Catalyst System (if so equipped)

i) Exhaust pipe stud.

ii) Muffler.

iii) Catalytic converter (if so equipped).

5) Miscellaneous Items Used in Above Systems

i) Vacuum, temperature and time sensitive valves and

switches.

ii) Hoses, belts, connectors, and assemblies.

SAFETYOPERATIONMAINTENANCE SETUP

Page 23For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Parts Lists and Diagrams

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM

SAFETY OPERATION MAINTENANCESETUP

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.

General Parts List

Part Description Qty

1 Gun & Hose Holder 1
2 Washer 2
3 Nut 2
4 Grommet 5
5 Nozzle 5
6 Label 1
7 Filter 1
8 Detergent Inlet Hose 1

9 Bolt 4
10 Lock Washer 4
11 Pump Assembly 1
12 Engine

Item 69734 (EPA version)

Item 69737 (EPA/CARB version)
13 Key 1
14 Handle 1
15 Handle Bolt 2
16 Swivel Nut 2
17 Frame 1
18 Hose 1
19 Gun 1

1

Part Description Qty

20 Wand 1
21 Pad 2
22 Washer 2
23 Nut 2
24 Engine Bolt 4
25 Lock washer 4
26 Washer 4
27 Nut 4
28 Lock washer 4
29 Axle Nut 2
30 Lock washer 2
31 Washer 2
32 Axle 2
33 Clip 2
34 Wheel 2
35 Washer 2
36 Wheel Nut 2
37 Dipstick 1
38 Breather Plug 1
39 O-ring 1
40 Shock pad 4

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.

Page 24 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

General Assembly Diagram

SAFETYOPERATIONMAINTENANCE SETUP

Page 25For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Pump Parts List

Part Description

1A Screw M8x16
2A Flange

SAFETY OPERATION MAINTENANCESETUP

When ordering replacement parts from this list, the “A” suffix must be included in order to get the correct part.

3A O-Ring 80X2,4
4A Radial Shaft Seal
5A Real Bearing
6A Sheath
7A Wobble Plate
8A Front Bearing
9A Spring Disk

10A 15Mm Plunger

11A Plunger Spring
12A Crankcase
13A O-Ring 14.2X1.9
14A Plug
15A Oil Seal
16A O-Ring 15X2.2
17A Spacer
18A O-Ring 22X2
19A Pressure Ring
20A Water Seal
21A Inlet Valve Plug
22A Backup Ring
23A O-Ring
24A Check Valve
25A Chemical Inlet
26A O-Ring 4.47X1.78
27A Ball
28A Cone Spring
29A O-Ring
30A Outlet Valve

Part Description

31A Valve Spring
32A O-Ring
33A Siphon Body
34A Outlet Connector
35A Backup Ring
36A O-Ring
37A Valve Core
38A Pump Manifold
39A Seal Gasket
40A Water Inlet Body
41A Thermal Relief Valve
42A Inlet Swivel Nut
43A Clip Ring
44A Water Filter
45A Manifold Bolt
46A Pressure Regulator Knob
47A Screw Plug
48A O-Ring
49A Backup Ring
50A O-Ring
51A Spring Holder
52A Large Pressure Spring
53A Small Pressure Spring
54A Ball Holder
55A Ball
56A Valve Port
57A O-Ring
58A Pump Breather Plug
59A Dipstick
60A Shipping Oil Plug

Page 26 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Pump Assembly Diagram

SAFETYOPERATIONMAINTENANCE SETUP

Page 27For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Item 69734 Engine Parts List

Part Description Qty

1B Gasket, Cylinder Head 1
2B Cover Subassembly, Cylinder Head 1

SAFETY OPERATION MAINTENANCESETUP

3B Gasket, Cylinder Head Cover 1
4B Tube, Breather 1
5B Bolt 4
6B Stud 1
7B Stud 1
8B Stud 2

9B Pin 2
10B Bolt, Cylinder Head 4
11B Plug, Spark 1
12B Head Subassembly, Cylinder 1
13B Crankcase Subassembly. 1
14B Sensor, Engine Oil 1
15B Gear Assy, Governor 1
16B Arm, Governor 1
17B Bolt, Drain Plug 2
18B Washer 2
19B Bearing 1
20B Seal, Oil 1
21B Washer 1
22B Pin 1
23B Bolt 2
24B Cover, Crankcase 1
25B Bearing 1
26B Seal, Oil 1
27B Gasket, Crankcase 1
28B Pin 2
29B Dipstick Subassembly, Oil 1
30B Plug Subassembly, Engine Oil 1
31B Bolt 6
32B Crankshaft Assy. 1
33B Clip, Piston Pin 2
34B Piston 1
35B Pin, Piston 1
36B Rod, Connecting 1
37B Ring, The First 1
38B Ring, The Second 1
39B Ring Set, Oil 1
40B Camshaft Assy. 1
41B Valve, Exhaust 1
42B Valve, Intake 1
43B Seat, Valve Spring 1
44B Exhaust Valve Retainer 1
45B Rotator, Valve 1
46B Guide, Seal 1
47B Tappet, Valve 2
48B Lifter, Valve 2
49B Plate Subassembly, Lifter Stopper 1
50B Bolt, Valve Adjusting 2
51B Rocker, Valve 2

When ordering replacement parts from this list, the “B” suffix must be included in order to get the correct part.

Part Description Qty

52B Valve Adjusting Nut 2
53B Nut, Valve Lock 2
54B Spring, Valve 2
55B Starter Assy, Recoil 1
56B Bolt 3
57B Shroud 1
58B Shroud, Cylinder Body 1
59B Shield,Lower 1
60B Protector, Oil 1
61B Switch Subassembly, Stop Engine 1
62B Bolt 2
63B Bolt 1
64B Collar 1
65B Bolt 1
66B Bolt 4
67B Carburetor Assy. 1
68B Gasket, Air Cleaner 1
69B Gasket, Carburetor 1
70B Plate, Carburetor Insulator 1
71B Gasket, Carburetor Insulator 1
72B Nut 2
73B Cleaner, Air 1
74B Jacket, Rubber 1
75B Gasket, Exhaust Outlet 1
76B Nut 2
77B Muffler Assy 1
78B Tank, Fuel 1
79B Fuel Strainer 1
80B Cover, Fuel Tank 1
81B Outlet Subassembly, Fuel Tank Oil 1
82B Clamp 3
83B Tube, Fuel 1
84B Bolt 1
85B Nut 2
86B Nut, Flywheel 1
87B Pulley,Starter 1
88B Impeller 1
89B Flywheel Subassembly 1
90B Bolt 2
91B Coil, Ignition 1
92B Control Assy, Throttle 1
93B Bolt 2
94B Spring, Governor 1
95B Rod, Governor 1
96B Spring, Throttle Valve Returning 1
97B Bolt, Governor Support 1
98B Nut 1

99B Support Subassembly, Governor 1
100B Valve, One Way 1
101B Clamp 1
102B Hose, Fuel Steam Rubber 1

Page 28 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Item 69734 Engine Assembly Diagram

56

56

56

61

63

06

65

66

66

66

75

66

SAFETYOPERATIONMAINTENANCE SETUP

55

80

97

001

28

87

201

101

58

58

28

18

28

48

99

98

97

92

94

95

47

38

21

16

22

96

15

17

18

19

89

20

91

13

18

64

59

87

88

17

86

62

90

90

37

58

62

27

27

93

93

28

27

29

26

31

31

31

31

31

28

25

24

30

31

77

14

23

32

40

36

34

33

76

76

23

42

49

47

47

48

48

33

35

39

1

38

37

8

75

8

11

10

3

2

46

41

54

54

43

44

45

9

10

10

50

50

51

5

51

52

52

53

53

9

76

7

6

17

21

10

4

5

5

5

96

07

86

Page 29For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

Item 69737 Engine Parts List

Part Description Qty

1C Gasket, Cylinder Head 1
2C Cover Subassembly, Cylinder Head 1

SAFETY OPERATION MAINTENANCESETUP

3C Gasket, Cylinder Head Cover 1
4C Tube, Breather 1
5C Bolt 4
6C Stud 1
7C Stud 1
8C Stud 2

9C Pin 2
10C Bolt, Cylinder Head 4
11C Plug, Spark 1
12C Head Subassembly, Cylinder 1
13C Crankcase Subassembly. 1
14C Sensor, Engine Oil 1
15C Gear Assy, Governor 1
16C Arm, Governor 1
17C Bolt, Drain Plug 2
18C Washer 2
19C Bearing 1
20C Seal, Oil 1
21C Washer 1
22C Pin 1
23C Bolt 2
24C Cover, Crankcase 1
25C Bearing 1
26C Seal, Oil 1
27C Gasket, Crankcase 1
28C Pin 2
29C Dipstick Subassembly, Oil 1
30C Plug Subassembly, Engine Oil 1
31C Bolt 6
32C Crankshaft Assy. 1
33C Clip, Piston Pin 2
34C Piston 1
35C Pin, Piston 1
36C Rod, Connecting 1
37C Ring, The First 1
38C Ring, The Second 1
39C Ring Set, Oil 1
40C Camshaft Assy. 1
41C Valve, Exhaust 1
42C Valve, Intake 1
43C Seat, Valve Spring 1
44C Exhaust Valve Retainer 1
45C Rotator, Valve 1
46C Guide, Seal 1
47C Tappet, Valve 1
48C Lifter, Valve 2
49C Plate Subassembly, Lifter Stopper 2
50C Bolt, Valve Adjusting 1
51C Rocker, Valve 2
52C Valve Adjusting Nut 2
53C Nut, Valve Lock 2
54C Spring, Valve 2
55C Starter Assy, Recoil 1
56C Bolt 3

When ordering replacement parts from this list, the “C” suffix must be included in order to get the correct part.

Part Description Qty

57C Shroud 1
58C Shroud, Cylinder Body 1
59C Shield,Lower 1
60C Protector, Oil 1
61C Switch Subassembly, Stop Engine 1
62C Bolt 2
63C Bolt 1
64C Collar 1
65C Bolt 1
66C Bolt 4
67C Carburetor Assy. 1
68C Gasket, Air Cleaner 1
69C Gasket, Carburetor 1
70C Plate, Carburetor Insulator 1
71C Gasket, Carburetor Insulator 1
72C Nut 2
73C Cleaner, Air 1
75C Gasket, Exhaust Outlet 1
76C Nut 2
77C Muffler Assy. 1
78C Bolt 2
79C Gasket, The Second Supply

Air Valve Flange
80C Valve, Muffler The Second Supply Air 1
81C Tank, Fuel 1
82C Fuel Strainer 1
83C Cover, Fuel Tank 1
84C Outlet Subassembly, Fuel Tank Oil 1
85C Clamp 4
86C Tube, Fuel 1
87C Bolt 1
88C Nut 2
90C Hose, Fuel Steam Rubber 1
92C Collector, Fuel Steam 1
93C Clamp 1
94C Hose, Air Cleaner Rubber 1
95C Nut, Flywheel 1
96C Pulley,Starter 1
97C Impeller 1
98C Flywheel Subassembly 1
99C Bolt 2

100C Coil, Ignition 1
101C Control Assy, Throttle 1
102C Bolt 2
103C Spring, Governor 1
104C Rod, Governor 1
105C Spring, Throttle Valve Returning 1
106C Bolt, Governor Support 1
107C Nut 1
108C Support Subassembly, Governor 1
109C Valve, One Way 1

110C Clamp 1
111C Cover, Fuel Steam Collector 1
112C Bolt 2
113C Jacket, Rubber 1

1

Page 30 For technical questions, please call 1-800-520-0882. ITEM 69734 / 69737

Item 69737 Engine Assembly Diagram

56

56

56

66

66

61

66

63

60

55

83

82

109

85

85

90

81

88

88

85

86

87

84

108

107

106

101

26

31

31

31

31

31

103

102

29

111

112

17

92

93

94

85

110

113

105

104

102

28

28

25

24

30

31

77

112

21

16

22

15

32

40

27

36

34

33

75

78

78

79

76

76

18

19

14

23

23

47

47

48

48

33

35

39

1

38

37

8

80

8

11

10

97

98

20

100

13

18

17

42

41

54

54

43

44

50

45

51

52

53

9

10

10

3

2

5

5

65

59

64

95

96

62

99

99

49

46

50

51

52

53

9

7

6

71

12

10

4

5

5

58

73

67

69

70

57

66

62

72

72

68

SAFETYOPERATIONMAINTENANCE SETUP

Page 31For technical questions, please call 1-800-520-0882.ITEM 69734 / 69737

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]