Harbor Freight Tools 67596 User Manual

POWERED BY

ENGINES

Gasoline Powered Pressure Washer

Item 67546

(EPA version) 212cc engine

Using an engine indoors CAN KILL YOU IN
MINUTES.

Engine exhaust contains carbon monoxide. This
is a poison you cannot see or smell.

Item 67596

(EPA/CARB version) 212cc engine

DANGER

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

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

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

SAVE THIS MANUAL.

When unpacking, make sure that the product is intact and undamaged.

If any Pressure Washer parts are missing or broken, please call 1-800-444-3353 as soon as possible.

If any Engine parts are missing or broken, please call 1-800-520-0882 as soon as possible.

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

Email our tech support at: [e-mail]

Email our Engine tech support at: [e-mail]

Copyright© 2009 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.

Manual Revised 11g

Contents

3  Specications

3 Safety Warnings

4 Set up Precautions

4 Operating Precautions

5 Service Precautions

7 Set Up Instructions

7 Assembly

8 Engine Controls

8 Item 67546 (EPA version)

8 Item 67596 (EPA/CARB version)

9 Operating Instructions

9 Starting the Engine

11 Equipment Operation

13 Service

13 Maintenance Procedures

13 Cleaning, Maintenance, and Lubrication Schedule

15 Storage

16 Troubleshooting

18 Parts Lists and Diagrams

18 General Parts List

19 General Assembly Diagram

20 Parts List A - Pump

21 Assembly Diagram A - Pump

22 Parts List B - Engine - Item # 67546 (EPA version)

23 Assembly Diagram B - Engine - Item # 67546 (EPA version)

24 Parts List B - Engine - Item # 67596 (EPA/CARB version)

25 Assembly Diagram B - Engine - Item # 67596 (EPA/CARB version)

26 Warranties

26 Limited 90 Day Warranty

26 Emission Control System Warranty

Page 2

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

Specications

Displacement 212cc

Engine Type Predator OHV

Pump Brass Axial

Drive Direct

Gun 22 IN. Wand / 20 IN. Lance

Nozzles

Hose Length 26 FT. 7 IN.

Cart

Fuel

Engine
Oil
(not
included)

Pump Oil
(included)

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

PTO (power takeoff

- the output shaft)

Spark Plug

Valve Clearance

Item 67546: 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 67596: 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.

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 qualied mechanic to allow efcient high-

altitude use and to prevent damage to the engine
and any other devices used with this product.

Type 87+ octane unleaded gasoline

Capacity 1 Gallon / 3.6L

Type
(SAE)

Capacity 0.5 Quart / 0.5L

Low Oil
Shutdown

viewed from

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

Push type with 10 IN.
Pneumatic tires

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

Yes

3.75 -oz SAE 10W-30
Non-detergent

Counterclockwise

Type

Gap 0.7 - 0.8 mm

Intake 0.10 - 0.15 mm

Exhaust 0.15 - 0.20 mm

NGK® BP-6ES

NHSP® / Torch® F6TC

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.

Safety Warnings

In this manual, on the labeling, and all other

information provided with this product:

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.

DANGER

DANGER indicates a hazardous situation which, if
not avoided, will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.

CAUTION

CAUTION, used with the safety alert symbol,
indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.

Notice

NOTICE is used to address practices
not related to personal injury.

CAUTION

CAUTION, without the safety alert symbol, is used
to address practices not related to personal injury.

WARNING! Read all instructions.

Failure to follow all instructions listed below

may result in re, 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.

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 3

Set up Precautions

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

or other ammable materials nearby.

2. Have multiple ABC class re extinguishers nearby.

3. Operation of this equipment may create sparks

that can start res around dry vegetation. A spark

arrestor may be required. The operator should

contact local re agencies for laws or regulations
relating to re prevention requirements.

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

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

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

7. Use only oil and fuel recommended in the

“Specications” section of this manual.

8. Only use cold Water or pressure washer
detergent in this tool. Do not use caustic

materials, solvents, ammable 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).

Operating Precautions

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.

5. People with pacemakers should consult their
physician(s) before use. Electromagnetic

elds 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.

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 ammable

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 inuence

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.

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.

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

Page 4

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

10. Do not carry the spray handle with your nger 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.

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

REV 11c

SKU 67546/67596

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

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

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.)

20. When spills of fuel or oil occur, they must be

cleaned up immediately. Dispose of uids 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.

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.

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.

Vibration Hazard:

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

seek medical advice as soon as possible.

2. Do not smoke during use. Nicotine reduces

the blood supply to the hands and ngers,

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.

24. The high pressure water ow can damage
the work surface if not used properly. Always

test the spray in an open area rst.

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.

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

REV 11c

SKU 67546/67596

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

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

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

wire(s) from the spark plug(s).

2. Keep all safety guards in place and in
proper working order. Safety guards include

mufer, air cleaner, mechanical guards,

and heat shields, among other guards.

Page 5

3. Do not alter or adjust any part of the

equipment or its engine that is sealed by the

manufacturer or distributor.  Only a qualied 

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 use and 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.

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.

SAVE THESE INSTRUCTIONS.

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 ttings or having repair
work done by a qualied 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.

10. Have the equipment serviced by a qualied 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, ames,
or other sources of ignition around the
equipment, especially when refuelling.

2. Do not rell the fuel tank while the
engine is running or hot.

3. Do not ll fuel tank to the top. Leave a little
room for the fuel to expand as needed.

4. Refuel in a well-ventilated area only.

Page 6

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

Set Up Instructions

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.

Risk of accidental starting;

WARNING

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.

resulting in serious personal
injury. Turn the Power

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).

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.

Pressure Regulator Knob (44A)

Assembly

1. Operation of this equipment may create sparks

that can start res around dry vegetation. A spark

arrestor may be required. The operator should

contact local re agencies for laws or regulations
relating to re prevention requirements.

Dipstick (60A)

Aluminum Pump

Breather Plug

(59A)

Brass Pump

Plug (14A)

Figure 1

Replace the Brass Pump Plug (14A) with the

2.
aluminum Pump Breather Plug (59A) and Dipstick

(60A) before rst 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).

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 larger areas.

•  Yellow Nozzle -

Narrow Spray

Used to clean small areas.

•  Red Nozzle -

Pencil Spray

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 ve 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.

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 specied 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.

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 7

Engine Controls

Item 67546 (EPA version)

Throttle Lever

Mufer

Spark Plug

Air Filter

Choke Lever

Fuel Valve Lever

Fuel Tank

Fuel Filler Cap

Starter Handle

Recoil Starter

Ignition Switch

Oil Drain Plug

Oil Filler Cap/Dipstick

Item 67596 (EPA/CARB version)

Throttle Lever

Mufer

Spark Plug

Air Filter

Choke Lever

Fuel Valve Lever

Fuel Filler Cap

Fuel Tank

Starter Handle

Recoil Starter

Ignition Switch

Oil Drain Plug

Oil Filler Cap/Dipstick

Page 8

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

Operating Instructions

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.

Starting the Engine

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 xed properly.

Checking Engine Oil Level

CAUTION Your Warranty is VOID if the engine’s

crankcase is not properly lled 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.

Checking Pump Oil Level

1. The Oil pump is lled with 3.75 -oz of
SAE 10W-30 NON DETERGENT oil at the
factory. Under normal conditions there is no
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

ll hole

Figure 4

1. Make sure engine is level, then turn off engine,
close the fuel valve, and allow engine to cool.

2. Clean the Oil Filler Cap and the area
around it. Remove the Oil Filler Cap.

Full level

Figure 3

Remove dipstick and wipe away the oil with dry

3.

cloth. Reinsert the dipstick into the oil ller neck,

but do not screw in, then remove it to check the oil
level. The oil level should be up to the full level as
shown above. Low oil level can trigger the low oil
sensor to shutdown the engine and prevent restart.

4. If the oil level is low, add the appropriate type of

oil until the oil level is at the bottom lip of the oil ll

hole.

Oil type:

32° F or above = SAE 10W-30
Below 32° F = SAE 5W-30.

5. Replace the Oil Filler Cap.

CAUTION Do not run the engine with too little or too

much oil. The engine will be
permanently damaged.

Full level

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 5

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 10W­30 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.

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 9

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 it 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. Fill the fuel tank with 87 octane or higher unleaded
gasoline to the top of the Fuel Level marker on the
fuel strainer.

Max Fuel
DO NOT OVERFILL!

WARNING! TO PREVENT FUEL LEAKAGE

AND FIRE HAZARD, DO NOT OVERFILL.

2. To start the engine:

a. To start a cold engine, move the Choke to the

CHOKE position.
To restart a warm
engine, leave the
Choke in the
RUN position.

b. Open the Fuel Valve.

c. Slide the Throttle or Speed Control Lever to 1/3

away from the SLOW position (the “turtle”).

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.

Start Procedure

Before starting the engine:
a. Follow the Set Up Instructions to prepare

the equipment, including installing the
Breather, connecting then turning on
the hose, and attaching the Nozzle.

b. Fill the engine with the proper amount

and type of both fuel and oil.

c. Read the Equipment Operation

section that follows.

1. Point Nozzle in safe direction and squeeze
trigger to release all pressure from the pump.

d. Turn the Engine Switch on.

O

OFF

e. Grip the Starter Handle of the Engine loosely and

pull it slowly several times to allow the gasoline to

ow 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.

ON

ON

I

Page 10

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

f. 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.

IMPORTANT: Allow the engine to run at no load

for ve minutes with no load after each start-

up so that the engine can stabilize.

3. Move the throttle up to operating speed.
Operating speed is maximum speed (fast or rabbit),
except during operational break-in period.

Break-in Period

1. Breaking-in the engine will help to ensure
proper equipment and engine operation.

2. 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.

3. 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 in the
MAINTENANCE AND SERVICING section.

Equipment 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

rst 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.

REV 10c, 11c

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 rst 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 rst 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.

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 ve feet.

• Clean vertical and sloped surfaces

from the top down.

• When cleaning horizontal surfaces, occasionally

use the stream to clear the area of excess water.

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.

8. 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.

9. 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.

10. When nished; 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.

11. Squeeze the Trigger to release excess pressure.

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

13. 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.

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 11

Stopping the Engine

To stop the engine in an emergency,
turn the engine switch off.

Under normal conditions, use
the following procedure:

1. Slide the Throttle Lever to SLOW (the “turtle”).

OFF

O

I

2. Turn the Engine Switch off.

3. Close the Fuel Valve.

OFF

O

I

Page 12

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

Service

WARNING

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.

Maintenance Procedures

Many maintenance procedures, including any not detailed in this manual, will need to be

performed by a qualied technician for safety.  If you have any doubts about your ability to safely 
service the equipment or engine, have a qualied 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

Every 3 mo. or

50 hr. of use

*

Every 6 mo. or

100 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 qualied technician.

Yearly or
every 300
hr. of use

** **

Every

2 Years

**

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 13

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 it 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.

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

Full level

3. Fill the fuel tank with 87 octane or higher unleaded
gasoline to the top of the Fuel Level marker on the
fuel strainer.

Max Fuel
DO NOT OVERFILL!

WARNING! TO PREVENT FUEL LEAKAGE

AND FIRE HAZARD, DO NOT OVERFILL.

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.

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

30

10W-30

5W-30

-20 0 20 40 60 80 100°F

Average outdoor temperature

8. Thread the dipstick back in clockwise.

CAUTION Do not run the engine with too little oil.

The engine will be permanently damaged.

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.

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.

Air Filter Element Maintenance

1. Remove the air lter cover and the air
lter elements and check for dirt. Clean

or replace as described below.

2. Cleaning:

• For “paper” lter elements:

To prevent injury from dust and debris, wear
ANSI-approved safety goggles, NIOSH­approved dust mask/respirator, and heavy­duty work gloves. In a well-ventilated area
away from bystanders, use pressurized

air to blow dust out of the air lter. If this
does not get the lter clean, replace it.

• For foam lter 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 lter in lightweight oil
briey, then squeeze out the excess oil.

3. Install the new lter or the cleaned lter.
Secure the Air Cleaner Cover before use.

Page 14

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

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.

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.

Recommended

Spark Plugs

Brand Item Number

NGK
NHSP

®

® /

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 specication on the Technical
Specications chart. Do not pry against the

electrode, the spark plug can be damaged.

5. Install the new spark plug or the cleaned spark plug
into the engine.
Gasket-style: Finger-tighten until the gasket
contacts the cylinder head, then about 1/2-2/3
turn more.
Non-gasket-style: Finger-tighten until the plug
contacts the head, then 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.

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 with dry cloth.

NOTICE: Do not clean engine 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 it 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.

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.

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.

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.

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 15

Troubleshooting

Problem Possible Causes Probable Solutions

Engine will
not start

Engine misres 1. Spark plug wire loose.

Starting instructions not
followed completely.

FUEL RELATED:

1. No fuel in tank or fuel valve closed.

2. Choke not in start position,
especially with cold engine.

3. Low quality or deteriorated, old gasoline.

4. Dirty fuel passageways blocking fuel ow.

5. Carburetor needle stuck. Fuel
can be smelled in the air.

6. Too much fuel in chamber. This can be
caused by the carburetor needle sticking.

IGNITION (SPARK) RELATED:

1. Spark plug wire not connected securely.

2. Spark plug electrode wet or dirty.

3. Incorrect spark plug gap.

4. Spark plug wire broken.

5. 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
misadjusted or stuck.

2. Incorrect spark plug gap or
damaged spark plug.

3. Defective spark plug wire.

4. Old or low quality gasoline.

5. Incorrect compression.

Refer to starting instructions and
follow them step-by-step.

FUEL RELATED:

1. Fill fuel tank and open fuel valve.

2. Move choke to start position if engine is cold.

3. Use only fresh 87+ octane
unleaded gasoline.

4. Clean out passageways using fuel additive.
Heavy deposits may require further cleaning.

5. Gently tap side of carburetor oat
chamber with screwdriver handle.

6. 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 start position.

IGNITION (SPARK) RELATED:

1. Connect spark plug wire properly.

2. Clean spark plug.

3. Correct the spark plug gap.

4. Replace spark plug wire.

5. Have qualied 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. Adjust valve clearance. If that does not
work, clean or replace valves/tappets.

1. Check wire connections.

2. Re-gap or replace spark plug.

3. Replace spark plug wire.

4. Use only fresh 87+ octane
unleaded gasoline.

5. Diagnose and repair compression.
(Use Engine will not start:
COMPRESSION RELATED section.)

Page 16

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

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

SKU 67546/67596

REV 11c

Problem Possible Causes Probable Solutions

Engine stops
suddenly

Engine knocks 1. Old or low quality gasoline.

Engine backres 1. Impure or low quality gasoline.

Does not
produce high
pressure

Output pressure
varies

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 ow.

4. Faulty magneto.

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.

1. Diameter of water supply hose too small

2. Water supply is restricted.

3. Not enough water supply.

1. 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.

3. Test/replace fuel tank cap.

4. Have qualied technician service magneto.

1. Fill fuel tank with fresh 87+
octane unleaded gasoline.

2. Do not exceed equipment’s load rating.

3. Have qualied technician diagnose
and service engine.

1. Fill fuel tank with fresh 87+
octane unleaded gasoline.

2. Use cold weather fuel and oil

additives to prevent backring.

3. Have qualied technician diagnose
and service engine.

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 rmly 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.

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

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 17

Parts Lists and Diagrams

General Parts List

Part Description Qty

1 Gun & Hose Holder 1
2 Washer 1
3 Nut 1
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 67546 (EPA version)

Item 67596 (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 2
26 Washer 2
27 Nut 2
28 Lock Washer 2
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.

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN
THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY
REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY
REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT.
IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND PARTS
REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE
BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION
OF REPLACEMENT PARTS THERETO.

Page 18

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

SKU 67546/67596

REV 11c

General Assembly Diagram

Item #

67596

(EPA/CARB version)

12

3
1

27

28

Item #

67546

(EPA version)

27

28

29

30

31

32

33

34

35

36

40

26

25

24

23

22

21

12

9

10

37

11

38

39

8

7

13

14

15

16

17

18

19

20

6

5

4

3

2

1

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 19

Parts List A - Pump

Part Description

1A Screw M8x16
2A Flange
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 Pump Breather Plug
15A Dipstick
16A Oil Seal
17A O-ring 15x2.2
18A Spacer
19A O-Ring 22x2
20A Pressure Ring

Part Description

21A Water Seal
22A Inlet Valve Plug
23A Backup Ring
24A O-Ring
25A Check Valve
26A Detergent Inlet
27A O-Ring 4.47x1.78
28A Ball
29A Cone Spring
30A O-Ring
31A Outlet Valve
32A Valve Spring
33A O-Ring
34A Siphon Body
35A Outlet Connector
36A Backup Ring
37A O-Ring
38A Valve Core
39A Plug
40A Pump Manifold

Part Description

41A Seal Gasket
42A Water Inlet Body
43A Thermal Relief Valve
44A Inlet Swivel Nut
45A Clip Ring
46A Water Filter
47A Manifold Bolt
48A Pressure Regulator Knob
49A Screw Plug
50A O-Ring
51A Backup Ring
53A O-Ring
52A Spring Holder
54A Large Pressure Spring
55A Small Pressure Spring
56A Ball Holder
57A Ball
58A Valve Port
59A O-Ring
60A Shipping Oil Plug

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

Page 20

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

REV 11c

SKU 67546/67596

Assembly Diagram A - Pump

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 21

Parts List B - Engine - Item # 67546 (EPA version)

Part Description Qty

1B Gasket, Cylinder Head 1
2B Cover Asm., Cylinder Head 1
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 Asm., Cylinder 1
13B Crankcase Asm. 1
14B Sensor, Engine Oil 1
15B Gear Asm., 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 Asm., Oil 1
30B Plug Asm., Engine Oil 1
31B Bolt 6
32B Crankshaft Asm. 1
33B Clip, Piston Pin 2
34B Piston 1
35B Pin, Piston 1
36B Rod, Connecting 1
37B Ring, Primary 1
38B Ring, Secondary 1
39B Ring Set, Oil 1
40B Camshaft Asm. 1
41B Valve, Exhaust 1
42B Valve, Intake 1
43B Seat, Valve Spring 1
44B Retainer, Exhaust Valve 1
45B Rotator, Valve 1
46B Guide, Seal 1
47B Tappet, Valve 2
48B Lifter, Valve 2
49B Plate Asm., Lifter Stopper 1
50B Bolt, Valve Adjusting 2

Part Description Qty

51B Rocker, Valve 2
52B Nut, Valve Adjusting 2
53B Nut, Valve Lock 2
54B Spring, Valve 2
55B Starter Asm., Recoil 1
56B Bolt 3
57B Shroud 1
58B Shroud, Cylinder Body 1
59B Shield,Lower 1
60B Protector, Oil 1
61B Switch Asm., Stop Engine 1
62B Bolt 2
63B Bolt 1
64B Collar 1
65B Bolt 1
66B Bolt 4
67B Carburetor Asm. 1
68B Gasket, Air Cleaner 1
69B Gasket, Carburetor 1
70B Plate, Carburetor Insulator 1
71B Gasket, Carburetor Insulator 1
72B Nut 2
73B Air Filter 1
74B Bolt 1
75B Gasket, Exhaust Outlet 1
76B Nut 2
77B Mufer Asm. 1
78B Tank, Fuel 1
79B Strainer, Fuel 1
80B Cover, Fuel Tank 1
81B Outlet Asm., Fuel Tank Oil 1
82B Collar 2
83B Tube, Fuel 1
84B Bolt 1
85B Nut 2
86B Nut, Flywheel 1
87B Pulley,Starter 1
88B Impeller 1
89B Flywheel Asm. 1
90B Bolt 2
91B Coil, Ignition 1
92B Control Asm., 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 Asm., Governor 1

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

Page 22

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

SKU 67546/67596

REV 11c

Assembly Diagram B - Engine - Item # 67546 (EPA version)

B

B

B

56

56

B

56

B

B

B

80

79

B

78

B

85

B

85

B

82

B

B

82

83

B

84

B

81

B

99

98

B

97

B B

92

B

96

B

94

B

95

B

21

B

B

16

22

55

B

88

B

17

B

18

B

19

B

15

B

89

B

20

B

91

B

13

B

18

B

17

61

B

63

B

60

B

65

B

64

B

B

87

86

B

90

B

90

B

66

B

66

B

66

57

B B

66

B

59

B

62

B

58

B

62

B

73

B

72

B

72

B

93

B

93

B

28

B

27

B

B

28

29

B

25

B

26

B

B

31

31

B

31

B

31

B

31

B

24

B

30

B

31

B

77

B

76

B

B

14

B

32

B

40

B

36

B

34

B

33

B

76

B

23

23

B

47

B

48

B

33

B

35

B

39

B

38

B

37

BB

B

8

75

8

B

11

B

B

42

B

B

47

41

B

54

B

B

48

44

B

1

B

B

10

10

BB

3

2

B

46

49

B

54

B

43

B

B

B

45

B

9

B

10

50

50

B

51

B

5

B

51

B

B

52

52

B

B

53

53

B

9

B

7

B

B

6

71

B

12

B

10

B

4

B

5

B

5

B

5

B

74

B

68

B

67

B

69

B

70

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 23

Parts List B - Engine - Item # 67596 (EPA/CARB version)

Part Description Qty

1B Gasket, Cylinder Head 1

2B Cover Subassembly, Cylinder Head 1

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, Primary 1
38B Ring, Secondary 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 R0tator, 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
52B Valve Adjusting Nut 2
53B Nut, Valve Lock 2
54B Spring, Valve 2
55B Starter Assy, Recoil 1
56B Bolt 3

Part Description Qty

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 Air Filter 1
74B Gasket, Exhaust Outlet 1
75B Nut 2
76B Mufer Assy. 1
77B Bolt 2
78B Gasket, Secondary Supply

Air Valve Flange
79B Valve, Mufer Secondary Supply Air 1
80B Tank, Fuel 1
81B Fuel Strainer 1
82B Cover, Fuel Tank 1
83B Outlet Subassembly, Fuel Tank Oil 1
84B Collar 4
85B Tube, Fuel 1
86B Bolt 1
87B Nut 2
88B Valve, One Way 1
89B Hose, Fuel Vapor Rubber 1
90B Collector, Fuel Vapor 1
91B Clamp 1
92B Clamp 1
93B Hose, Air Cleaner Rubber 1
94B Cover, Fuel Vapor Collector 1
95B Bolt 2
96B Jacket, Rubber 1
97B Nut, Flywheel 1
98B Pulley,Starter 1
99B Impeller 1

100B Flywheel Subassembly 1
101B Bolt 2
102B Coil, Ignition 1
103B Control Assy, Throttle 1
104B Bolt 2
105B Spring, Governor 1
106B Rod, Governeor 1
107B Spring, Throttle Valve Returning 1
108B Bolt, Governor Support 1
109B Nut 1
110B Support Subassembly, Governor 1

1

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

Page 24

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

SKU 67546/67596

REV 11c

Assembly Diagram B - Engine - Item # 67596 (EPA/CARB version)

56B

56B

56B

61B

66B

66B

66B

82B

63B

60B

55B

100B

20B

99B

102B

13B

18B

94B

81B

88B

90B

84B

89B

84B

80B

86B

109B

108B

103B

91B

87

87

93B

84B

84B

83B

110B

92B

85B

107B

105B

106B

95B

17B

18B

95B

21B

96B

22B

16B

19B

15B

17B

64B

98B

65B

101B

59B

97B

58B

62B

101B

73B

57B

66B

62B

72B

72B

REV 11c

31B

31B

31B

26B

31B

31B

29B

104B

31B

28B

25B

76B

28B

24B

30B

75B

27B

75B

74B

32B

36B

40B

34B

33B

77B

77B

78B

14B

23B

79B

47B

39B

37B

48B

35B

38B

33B

8B

11B

23B

8B

46B

42B

9B

45B

10B

49B

54B

43B

50B

50B

52B

53B

5B

51B

52B

53B

9B

67B

7B

69B

6B

12B

10B

4B

5B

5B

70B

71B

51B

5B

68B

41B

47B

54B

44B

48B

1B

10B

10B

3B

2B

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 25

Warranties

Limited 90 Day Warranty

Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability standards,
and warrants to the original purchaser that 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 veries 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 specic legal rights and you may also have other rights which vary from state to state.

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

Emission Control
System Warranty

United States Emission Control Defects
Warranty Statement
(for Item 67546)

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 Off-Road Engine (herein engine). Within the United States, new off-road, spark-ignition

engines certied 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 Item 67596)

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 certied 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.

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.

Page 26

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

SKU 67546/67596

REV 11c

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 modications.

• 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 rst 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 rst 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 led 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 rst 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 qualied 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) Mufer.

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.

REV 11c

SKU 67546/67596

For Pressure Washer technical questions, please call 1-800-444-3353.

For Engine technical questions, please call 1-800-520-0882.

Page 27

POWERED BY

ENGINES

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

REV 11c