Harbor Freight Tools 95666 User Manual

®

1” GAS IMPACT WRENCH

Model 95666

ASSEMBLY AND OPERATING INSTRUCTIONS

Due to continuing improvements, actual product may differ slightly from the product described herein.

CAUTION!

Your Warranty Is Voided If:

You do not operate the Gas Impacrt Wrench with the proper 25:1 fuel mix in its fuel tank.

Running the Engine with an improper fuel mix, low or no fuel mix, will permanently damage the unit.

Copyright 2007 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

Never run the Engine with an improper fuel mix, low or no fuel mix.

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at: http://www.harborfreight.com

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

©

without the express written consent of Harbor Freight Tools.

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

PRODUCT SPECIFICATIONS

Drive Size 1”
Maximum Bolt Capacity 1-5/8”
Output Torque Range 406 < - > 1250 Ft./Lb.
Gear Box Settings Reverse/Neutral/Forward
Engine Specifications Engine Type: Two-Stroke / Forced Air Cooling / Single Cylinder / Recoil Start

Accessories Side D-Handle (Qty. 1) / Top D-Handle (Qty. 1) / Spark Plug Wrench (Qty. 1)

Net Weight 39.6 Pounds

Item Description

Engine Displacement: 51.7 cc
Engine Idling RPM: 2700
Engine No Load RPM: 9880
Engine Torque RPM: 7120
Fuel Tank Capacity: 34 Ounces (0.26 Gal.)
Fuel Mixture Required: 25:1 (25 Parts Unleaded Gasoline/1 Part 2-Cycle Oil)
Spark Plug Type: Torch ® L7T
EPA Approved

4mm Hex Wrench (Qty. 1) / 5mm Hex Wrench (Qty. 1) / 6mm Hex Wrench (Qty. 1)
10 < - > 13mm Spanner (Qty. 1)

This product requires a 25:1 ratio of fuel and 2-cycle oil to be added to its fuel tank before starting.

Attempting to start the Engine with an improper fuel mix, low or no fuel mix WILL ruin the Engine

and void the warranty.

The Engine’s Carburetor may need to be adjusted by a qualified mechanic for efficient high-

altitude use.

The Emission Control System for this product’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.

SAVE THIS MANUAL

You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.

GENERAL SAFETY RULES AND PRECAUTIONS

WARNING!

READ AND UNDERSTAND ALL INSTRUCTIONS

Failure to follow all instructions listed below may result in

electric shock, fire, and/or serious injury.

SAVE THESE INSTRUCTIONS

WORK AREA

1. Keep your work area clean and well lit. Cluttered benches and dark areas

invite accidents.

2. Do not operate power tools in explosive atmospheres, such as in the
presence of flammable liquids, gases, or dust. Power tools create

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 2

sparks which may ignite the dust or fumes.

3. Keep bystanders, children, and visitors away while operating a power tool.

Distractions can cause you to lose control. Provide barriers or shields as
needed. Children should never be in the work area.

PERSONAL SAFETY

1. Stay alert. Watch what you are doing, and use common sense when oper-

ating a power tool. Do not use a power tool while tired or under the influ­ence of drugs, alcohol, or medication. A moment of inattention while operat-

ing power tools may result in serious personal injury.

2. Dress properly. Do not wear loose clothing or jewelry. Contain long hair.

Keep your hair, clothing, and gloves away from moving parts. Loose
clothes, jewelry, or long hair can be caught in moving parts.

3. Avoid accidental starting. Be sure the Stop Button (103) is in its “STOP”

position before moving the Impact Wrench
service, maintenance, or cleaning procedures on the unit.

and

before performing any

4. Remove adjusting keys or wrenches before turning the Impact Wrench on.

A wrench or a key that is left attached to a rotating part of the machine may
result in personal injury.

5. Do not overreach. Keep proper footing and balance at all times. Proper

footing and balance enables better control of the power tool in unexpected
situations.

TOOL USE AND CARE

1. Do not force the tool. Use the correct tool for your application. The correct

tool will do the job better and safer at the rate for which it is designed.

2. Do not use the Impact Wrench if the Stop Button (103) does not turn it on

or off. Any tool that cannot be controlled with its Stop Button is dangerous and
must be replaced.

3. Store idle tools out of reach of children and other untrained persons. Tools

are dangerous in the hands of untrained users.

4. Maintain tools with care. Properly maintained tools are less likely to malfunc-

tion and are easier to control. Do not use a damaged tool. Tag damaged tools
“Do not use” until repaired.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 3

5. Check for misalignment or binding of moving parts, breakage of parts, and

any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly main-

tained tools.

6. Use only accessories that are recommended by the manufacturer for your

model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.

SERVICE

1. Tool service must be performed only by qualified repair personnel. Service

or maintenance performed by unqualified personnel could result in a risk of injury.

2. When servicing a tool, use only identical replacement parts. Follow

instructions in the
manual. Use of unauthorized parts or failure to follow maintenance instructions

may create a risk of electric shock or injury.

“Inspection, Maintenance, And Cleaning”

section of this

SPECIFIC SAFETY RULES AND PRECAUTIONS

1. IMPORTANT! Your Warranty is voided if:

You do not operate the Impact Wrench with the proper 25:1 fuel mix in its
fuel tank. Never run the Engine with an improper fuel mix, low or no fuel mix.

Running the Engine with an improper fuel mix, low or no fuel mix, will perma­nently damage the unit.

2. Maintain labels and nameplates on the Impact Wrench. These carry impor-

tant information. If unreadable or missing, contact Harbor Freight Tools for a
replacement.

3.

4. Never leave the Impact Wrench unattended when it is running. Turn off the

Engine before leaving.

5. Do not allow children and other unauthorized people to handle or play with

the Impact Wrench. Children should be kept out of the work area. Also, store
the Impact Wrench in a location out of reach of children.

WARNING! Always wear safety equipment. When operating
the Impact Wrench, always wear ANSI approved safety impact eye
goggles, hearing protection, heavy duty work gloves, sturdy work
boots, and head protection.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 4

6. Make sure the Impact Wrench is completely stopped before changing the

rotational direction of the tool.

7. Always maintain a firm grip on the Impact Wrench with both hands. Beware

of start up torque.

8. WARNING! This Impact Wrench is designed for outdoor use only. Do

not operate the Impact Wrench in a closed area or in a poorly ventilated area.

When running, the Engine of this product produces carbon monoxide, a
colorless, odorless, toxic gas that, when inhaled, can cause serious per­sonal injury or death.

FIRE AND EXPLOSION PRECAUTIONS

1. Gasoline fuel and fumes are flammable, and potentially explosive.
Use proper fuel storage and handling procedures. Always have multiple
ABC class fire extinguishers nearby.

2. Keep the Impact Wrench and surrounding areas clean at all times.

3. When spills of fuel or oil occur, they must be cleaned up immediately. Dis-

pose of fluids and cleaning materials as per any local, state, or federal codes and
regulations. Store oil rags in a covered metal container.

4. Never store fuel or other flammable materials near the Impact Wrench.

5. Do not smoke, or allow sparks, flames, or other sources of ignition around

the Impact Wrench.

6. Keep grounded conductive objects, such as tools, away from exposed, live

electrical parts and connections to avoid sparking or arcing. These events

could ignite fumes or vapors.

7. Do not refill the Fuel Tank while the Engine is running or while the Engine is

still hot. Do not operate the Impact Wrench with known leaks in the fuel system.

8. Use only Engine manufacturer recommended fuel and oil.

MECHANICAL PRECAUTIONS

1. Prior to performing service, maintenance, or cleaning procedures, always

make sure the Stop Button (103) is in its “STOP” position. Allow the Engine
to completely cool. Then, remove the spark plug from the Engine.

2. Do not alter or adjust any part of the Impact Wrench or Engine that is

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 5

assembled and supplied by the manufacturer.

3. Always follow and complete scheduled Impact Wrench and Engine mainte-

nance.

CHEMICAL PRECAUTIONS

1. Avoid contact with hot fuel, oil, exhaust fumes, and solid surfaces.

2. Avoid body contact with fuels, oils, and lubricants used in the Impact

Wrench and Engine. If swallowed, seek medical treatment immediately. Do not
induce vomiting if fuel is swallowed. For skin contact, immediately wash with
soap and water. For eye contact, immediately flush eyes with clean water.

NOISE PRECAUTIONS

1. Prolonged exposure to high noise levels is hazardous to hearing.

Always wear ANSI approved hearing protection when operating or working
around the Impact Wrench when it is running.

MISC. PRECAUTIONS

1. WARNING! 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.

2. WARNING! The warnings and cautions 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

UNPACKING

When unpacking, check to make sure all the parts shown on the Parts Lists on pages 13,
15, 17, 18, and 19 are included. If any parts are missing or broken, please call Harbor

Freight Tools at the number shown on the cover of this manual as soon as possible.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 6

GEAR OIL PORT

(210D)

CENTRIFUGAL

CLUTCH

(199D)

GASOLINE

ENGINE

PRIMER

(161.1C)

PRODUCT FEATURES

1”
SOCKET
SQUARE

DRIVE
(188D)

HAMMER
HOUSING

(171D)

SUPPORT

HANDLE

(180D)

GEAR
CASE

(209D)

GEAR CHANGE

LEVER
(233D)

CHOKE
LEVER

FIGURE A

(69)

RECOIL

STARTER

(125B)

THROTTLE

ASSEMBLY

(102)

STOP

BUTTON

(103)

HANDLE

ASSEMBLY

(107)

PRE-START INSTRUCTIONS

To Fill The Fuel Tank:

1. IMPORTANT! Your warranty is voided if:
You do not operate the Impact Wrench with the proper 25:1 fuel mix in its
Fuel Tank. Never run the Engine with an improper fuel mix, low or no fuel mix.

Running the Engine with an improper fuel mix, low or no fuel mix will
permanently damage the unit.

2. To obtain the proper 25:1 fuel mix, combine 25 parts unleaded gasoline with 1
part 2-cycle oil in a clean, approved container. Cover and shake to thoroughly
mix before each fueling. NOTE: Mix only enough fuel for a few days work. The
maximum storage time of mixed fuel is

three

months.

3. Once the proper fuel mix is obtained, unscrew and remove the Tank Cap (93).

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 7

4. Fill the Fuel Tank approximately 3/4 full with the fuel mix (the Fuel Tank capacity
is approxiately 34 ounces). Then, replace the Tank Cap (93). (See Figure B.)

5. WARNING! NEVER attempt to fill the Fuel Tank when the Engine is running
or hot to the touch.

TANK CAP

(93)

FIGURE B

To Fill The Gear Case With Gear Oil:

1. Prior to each use of the Impact Wrench, the Gear Case (209D) must be checked
and, if necessary, filled with clean #10 gear oil. To check the level of gear oil in
the Gear Case, observe the Gear Oil Port (210D) window located on the side of
the Gear Case. The gear oil level should be centered in the window. If the level
is lower than the center of the window, add #10 gear oil until its level is centered
in the window. (See Figure C.)

FIGURE C

GEAR OIL PORT

(210D)

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 8

OPERATING INSTRUCTIONS

1. WARNING! Always wear safety equipment. When operating the Impact
Wrench, always wear ANSI approved safety impact eye goggles, hearing protec­tion, heavy duty work gloves, sturdy work boots, and head protection.

2. Select the desired size socket (not included) and firmly insert the socket onto the
1” Square Socket Drive (188D). (See Figure A.)

3. Place the Impact Wrench on a firm stand or solid floor.

4. Set the Gear Change Lever (233D) to its “NEUTRAL” position. (See Figure A.)

5. Slide the Stop Button (103) upward to its “START” position. (See Figure A.)

6. Move the Throttle Assembly (102) to its “IDLE” position. (See Figure A.)

7. Press the Primer (161.1C) several times to force fuel into the Engine’s Carbure­tor. (See Figure A.)

8. Turn the Choke Lever (69) to its “CLOSED” position. (See Figure A.)

9. Pull sharply on the Recoil Starter (125B), and allow the Recoil Starter to return
to its original position. (See Figure A.)

10. Once the Engine starts, slowly return the Choke Lever (69) to its “OPEN” posi­tion. (See Figure A.)

11. NOTE: Should the Engine fail to start, repeat Steps #6 through #9.

12. After starting the Engine, allow the Engine about 2 to 3 minutes to warm up
before use.

13. WARNING! Before and during operation, always grip the Impact Wrench
with both hands to brace for Engine torque. Also, maintain a firm stance to keep
from slipping or falling down.

14. Insert the previously installed socket onto the bolt or nut that is to be loosened or
tightened.

15. Use the Gear Change Lever (233D) to select the desired rotation (forward/
reverse) of the tool. Select “R” for
rotation. (See Figure A.)

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 9

clockwise

rotation or “L” for

counterclockwise

16. IMPORTANT: To avoid damage to the internal gears, do not change the rotation
(forward/reverse) of the tool when accelerating the Engine. Change the rotation
only when the Engine is at idle.

17. Squeeze the Throttle Assembly (102) for high speed to loosen or tighten the bolt
or nut. (See Figure A.)

18. Once the bolt or nut is loosened or tightened, release the Throttle Assembly
(102) to allow the Engine to return to idle speed. (See Figure A.)

19. Slide the Stop Button (103) downward to its “STOP” position. (See Figure A.)

20. Place the Impact Wrench on a firm stand or solid floor. Then, set the Gear
Change Lever (233D) to its “NEUTRAL” position. (See Figure A.)

21. Allow the Engine of the Impact Wrench to completely cool. Then store the tool in
a clean, dry, safe location out of reach of children and other unauthorized people.

INSPECTION, MAINTENANCE, AND CLEANING

1. WARNING! Always make sure the Stop Button (103) is in its “STOP”
position and the Spark Plug (3A) is removed prior to performing any service,

maintenance, or cleaning of the Impact Wrench.

2. Before each use: Inspect the general condition of the Impact Wrench. Check
misalignment or binding of moving parts, cracked or broken parts, and any other
condition that may affect the safe operation of the tool. If abnormal noise or
vibration occurs, have the problem corrected before further use.

Do not use damaged equipment.

3. Impact unit and Gear Case (209D) maintenance: Prior to each use, check the
Gear Oil Port (210D) for proper gear oil level. If necessary, refill the Gear Case
with #10 gear oil. (See page 8 and Figure C.)

4. Spark Plug (3A) maintenance: The condition of the Spark Plug should be
checked every six months or 100 hours of tool use. If necessary, reset the gap
and clean the old Spark Plug or gap and replace with a new Spark Plug.

(See Figure D.)

0.025”

FIGURE D

SPARK PLUG

(3A)

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 10

5. Air Cleaner (78) maintenance: The Air Cleaner should be checked prior to
each use of the Impact Wrench for excessive dirt and debris build-up.
Thereafter, the Air Cleaner should be cleaned or replaced every three months or
50 hours of tool use. To do so, remove the cover of the Air Cleaner to expose
the Air Cleaner Filter (74). Remove the Air Cleaner Filter and rinse the Filter in
warm, soapy water. Squeeze the Filter to remove the soapy water, and allow the
Filter to dry. Then replace the Filter and the cover of the Air Cleaner.

(See Figure E.)

AIR CLEANER

(78)

FIGURE E

AIR CLEANER FILTER

(74)

6. To clean the Impact Wrench: Use only a clean cloth and mild detergent. Do
not use solvents as doing so may damage the finish of the tool. Do not introduce
liquids into the internal parts of the Engine and Carburetor.

7. When storing the Impact Wrench: Before storing, drain all fuel out of the tool’s
Fuel Tank. If this is not followed, old fuel in the Fuel Tank may clog the Carbure­tor and prevent the tool from starting until cleaned out. Then store the tool in a

clean, dry, safe location out of reach of children and other unauthorized
people.

8. CAUTION! All maintenance, service, or repairs not mentioned in this
manual must only be performed by a qualified service technician.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 11

TROUBLESHOOTING

Engine will not start. 1. Make sure Fuel Tank is filled with a 25:1 fuel mixture.

Engine stops soon after starting. 1. Make sure Fuel Tank is filled with a 25:1 fuel mixture.

Engine overheats. 1. Make sure Fuel Tank is filled with a 25:1 fuel mixture.

Drive Socket does not rotate. Make sure the Gear Change Lever is set on “R” for clockwise rotation or “L”

Output power reduced. Make sure Air Cleaner is free of dirt and debris.
Stop Button will not turn off Engine. Immediately pull the Spark Plug Wire from the Spark Plug to stop Engine.

Problem Possible Solution

2. Make sure Stop Button is in its “START” position.

3. Engine “flooded” with too much fuel mixture. Remove Spark Plug. Set
Choke Lever to its “OPEN” position. Pull Recoil Starter several times to
exhaust excess fuel from the Engine cylinder. Replace Spark Plug and
restart Engine.

4. Choke Lever in wrong position.

2. Make sure Choke Lever is in its “OPEN” position.

2. Make sure the Spark Plug is of the proper size and type.

3. Make sure the Engine cylinder cooling fans are clean.

for counterclockwise rotation.

Do not operate the Impact Wrench until a qualified service technician
inspects the tool for damage and/or defects.

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 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 RISKS 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.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 12

PARTS LIST - ENGINE COMPONENTS

Part # Description Qty. Part # Description Qty.

45 Hex Hole Bolt (5 x 12S) 1 88 Return Grommet 1
46 Muffler Protector 1 89 Fuel Pipe Assy. (3 x 5 x 230) 1
47 Hex Hole Button Screw (6 x 65) 2 90 Clip (6.3) 1
48 Washer (6) 2 91 Pump Filter Body Assy. 1
49 Muffler Gasket 1 92 Tank Cap Chain 1
50 Muffler Set 1 93 Tank Cap 1
51 Screw (4 x 8S) 2 94 Rubber Cushion 1
52 Tail Pipe Set 1 95 Tank Holding Metal 1
53 Muffler Special Gasket 1 96 Hex Hole Bolt (5 x 15SW) 2
54 Hex Nut (4) 1 97 Fuel Tank (Vermillion) 1
55 Tail Pipe 1 98 Adjust Spring 1
56 Screw (4 x 12) 1 99 Throttle Wire 1
57 Hex Hole Bolt (5 x 12S) 1 100 Split Protection Tube (10 x 200L) 1
58 Heat Shield 1 101 Washer (5) 1
59 Hex Hole Bolt (5 x 25S) 2 102 Throttle Assy. 1
60 Hex Hole Bolt (5 x 20PS) 2 103 Stop Button 1
61 Tank Bracket 1 104 Screw (3 x 10) 1
62 Fuel Tank Rubber Cushion 2 105 Stop Switch Assy. 1
63 Fuel Tank Rubber Cushion 2 106 Stop Button Bracket 1
64 Inlet Manifold Gasket 1 107 Handle Assy. 1
65 Carburetor Insulator Set 1 108 Stop Button Mark 1
66 Hex Hole Bolt (5 x 25WS) 2 109 Handle Bracket 2
67 Carburetor Gasket 1 110 Handle Holder 2
68 Carburetor Set 1 111 Choke Mark 1
69 Choke Lever 1 112 Connector Case Assy. 1
70 Nut (10) 1 113 Connector Case 1
71 Inner Toothed Washer (10) 1 114 Connector Sleeve 1
72 Priming Pump 1 115 Combination Box Spanner (10 x 19) 1
73 Air Cleaner Body 1 116 Cord Clamp 2
74 Air Cleaner Filter 1 117 Cord Clamp 1
75 Collar (5.8) 2 120 Recoil Starter Body Assy. 1
76 Blow Over Check Board 1 131 Anti-Vibration Rubber 1
77 O-Ring (P-3) 1 132 4-Sides Handle Holder 4
78 Air Cleaner Cover 1 133 U-Nut (M6) 20
79 Air Cleaner Cover Bolt 1 134 Spring Washer (M6) 20
80 Screw (5 x 60) 2 135 Hex Cap Bolt (M6 x 20) 16
81 Washer (5) 2 136 Hex Cap Bolt (M6 x 35) 4
82 Clutch Washer (8) 2 137 Kickstand 1
83 Clutch Arm 2 250 Spring Washer (M6) 6
84 Clutch Spring 1 251 Hex Cap Bolt (M6 x 12) 6
85 Wave Washer (10) 2 252 Hex Cap Bolt (M6 x 35) 4
86 Clutch Step Bolt 2 253 Jagged Spring Washer (2H-M6) 4
87 Fuel Pipe (2.5 x 4 x 90) 2 254 U-Nut (M6) 4

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 13

ASSEMBLY DIAGRAM - ENGINE COMPONENTS

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 14

PARTS LIST - ENGINE

Part # Description Qty. Part # Description Qty.

1A Spark Plug Cap Assy. 1 21.3A Crank Shaft Shim (0.20) 1
2A Spark Plug Rubber Cover 1 21.4A Crank Shaft Shim (0.30) 1
3A Spark Plug (BPMR6A) 1 22A Crank Shaft Washer (15.2 x 22) 2
4A Cylinder Set 1 23A Woodruff Key (3 x 13 x 5) 1
5A Hex Hole Bolt (5 x 18S) 4 24A Screw (6 x 45S) 2
6A Cylinder Gasket 1 25A Screw (6 x 30) 2
7A Piston Ring 2 26A Magneto 1
8A Piston Pin Circlip 2 27A Small Washer (10) 1
9A Piston Set 1 28A Nut (10) 1
10A Piston Pin 1 29A Screw (5 x 18WS) 3
11A Needle Bearing (2 x 8.8) 1 31A Ignition Coil 1
12A Crank Shaft 1 32A Primary Cord Grommet 1
13A Small Nut (10) 1 33A Fan Case 1
14A Starter Pawl 1 34A Primary Cord Grommet 1
15A Starter Pawl Spring 1 35A Stop Cord 1
16A Stop Ring (E-5) 1 36A Hex Hole Bolt (6 x 20S) 4
17A Starter Pulley 1 37A Crank Case Assy. 1
18A Crank Case Gasket 1 38A Nut (6) 1
19A Oil Seal (15257) 2 39A Outer Receiver 1
20A Ball Bearing (6202, 35mm O.D.) 2 40A Piston Pin Collar 2
21A Crank Shaft Shim (0.05) 1 41A Ignition 1

21.1A Crank Shaft Shim (0.10) 1 42A Screw (5 x 14PS) 2

21.2A Crank Shaft Shim (0.15) 1 43A Cord Clamp 1

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 15

ASSEMBLY DIAGRAM - ENGINE

1A

2A

3A

5A

4A

6A

22A

10A

21A

40A

20A

18A

19A

9A

12A

40A

23A

7A
7A

8A

11A

17A

14A

15A

16A

13A

24A

25A

22A

20A

19A

37A

38A

39A

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

32A

33A

36A

NOTE:

41A

31A

43A

34A

42A

29A

28A

35A

26A

27A

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 16

PARTS LIST & ASSEMBLY DIAGRAM - RECOIL STARTER

Part # Description Qty.

121B Recoil Starter Body 1
122B Starter Rope Reel 1
123B Recoil Spring 1
124B Starter Rope 1
125B Recoil Starter 1
126B Starter Handle Cap 1
127B Set Screw 1

127B

122B

123B

121B

124B

125B

126B

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 17

PARTS LIST & ASSEMBLY DIAGRAM - CARBURETOR

Part # Description Qty. Part # Description Qty.

140C Set Screw 1 156C Idle Adjust Spring 1
141C Pump Body 1 157C Idle Adjust Screw 1
142C Pump Gasket 1 158C Adjust Spring 2
143C Pump Diaphragm 1 159C Low Adjust Screw 1
144C Inlet Screen 1 160C High Adjust Screw 1
145C Swivel 1 161C Needle Valve 1
146C Stop Ring 1 161.1C Primer 1
147C Throttle Shaft 1 162C Valve Spring 1
148C Throttle Spring 1 163C Control Lever 1
149C Throttle Valve 1 164C Hinge Pin 1
150C Shutter Screw 3 165C Hinge Pin Set Screw 1
151C Stop Plate 1 166C Diaphragm Gasket 1
152C Choke Spring 1 167C Metering Diaphragm 1
153C Steel Ball 1 168C Air Purge 1
154C Choke Valve 1 169C Diaphragm Cover 1
155C Choke Shaft 1 170C Set Screw 4

140C

141C

146C

147C

150C

149C

145C

143C

148C

142C

166C

167C

168C

169C

144C

161C

162C

163C

151C

164C

165C

150C

154C

152C

150C

153C

155C

157C

156C

159C
158C

160C

158C

Primer (161.1C) not shown.

170C

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 18

PARTS LIST - IMPACT UNIT & GEARBOX

Part # Description Qty. Part # Description Qty.

171D Hammer Housing 1 215D Selector Shaft 1
172D Oil Seal (AG2044E1) 1 216D Gear 1
173D Press-In Bushing 1 217D Snap Ring (STW16) 1
174D Washer (2H-M8) 4 218D Bearing Shaft 1
175D Spring Washer (M8) 3 219D Bearing Shaft Bushing 1
176D Hex Cap Bolt (M8 x 45) 3 220D Gear Cluster 1
177D U-Nut (M8) 3 221D Planetary Gear 1
178D Hex Cap Bolt (M8 x 50) 1 222D Planetary Gear Bushing 1
179D Anti-Vibration Handle 1 223D Planetary Pivot 1
180D Support Handle 1 224D Planetary Spacer 1
181D Retainer 2 225D Selector Gear 1
182D End Cap 2 226D Gear Selector Spiral Pin (5 x 26) 1
183D Foot Rest 1 227D O-Ring (N14) 1
184D Hex Cap Bolt (M6 x 45) 4 228D Gear Flange 1
185D U-Nut (M6) 4 229D Packing 1
186D Spring Washer (M6) 8 230D Hex Cap Bolt (M5 x 10) 3
187D Thrust Washer 1 231D Spring Washer (2H-M5) 3
188D 1” Socket Square Drive 1 232D Spring Washer (WW-16) 1
189D Retainer Ring 1 233D Gear Change Lever 1
190D O-Ring (P18) 1 234D Retainer Spring (3.8 x 7 x 0.6 x 6) 1
191D Central Shaft 1 235D Steel Ball (4) 1
192D Return Spring 1 236D Spring Washer (M6) 1
193D Hammer 1 237D Hex Cap Bolt (M6 x 20) 1
194D Cam Plate 1 238D Gear Case Gasket 1
195D Roller Ball (13/32”) 2 239D Pin (4 x 13.8) 2
196D Plug 4 240D Spring Washer (2H-M6) 6
197D Ring 1 241D Hex Cap Bolt (M6 x 25) 6
198D Snap Ring (WR73) 2 242D Clutch Support Flange 1
199D Clutch 1 243D Ball Bearing (16005) 1
200D Thrust Bearing (NSK51104) 1 244D Snap Ring (IRTW-47) 1
201D Spacer 1 245D Ball Bearing (6907) 1
202D Thrust 1 246D Snap Ring (IRTW-55) 1
203D Gasket 1 247D Oil Seal (AC2081EO) 1
204D Ring Flange 1 248D Clutch Ring 1
205D Oil Seal (AC1719EO) 1 249D Snap Ring (STW-25) 1
206D Ball Bearing (6007VV) 1 250D Spring Washer 6
207D Ball Bearing (6006) 1 251D Hex Cap Bolt (M6 x 12) 6
208D Ring Flange Gasket 1 252D Hex Cap Bolt (M6 x 35) 4
209D Gear Case 1 253D Spring Washer (2H-M6) 4
210D Gear Oil Port (PF3/8”-19) 1 254D U-Nut (M6) 4
211D Ball Bearing (16004) 1 255D Spring Washer (2H0M6) 4
212D Ball Bearing (16003) 1 256D Spring Washer (M6) 4
213D Snap Ring (IRTW-35) 1 257D Hex Nut (M6) 4
214D Bushing 1

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

NOTE:

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 19

208D

204D
207D

206D

ASSEMBLY DIAGRAM - IMPACT UNIT & GEARBOX

173D

187D

203D

209D

175D

177D

180D

205D

248D

245D

246D

247D

199D

202D
201D

200D
191D

255D
256D

257D

195D
192D

195D

244D

243D

242D

198D
197D
194D
193D
196D

249D

217D

216D

213D

212D

215D

210D

214D

188D

189D

190D

239D 238D

171D

211D

220D

226D
225D

227D

174D

235D

176D

231D

230D

178D

172D

224D
222D
221D

223D
219D

218D

234D
228D

232D
233D

236D
237D

179D

181D

186D
184D

185D
186D

182D

NOTE:

Some parts are listed and shown for illustration purposes only,

and are not available individually as replacement parts.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 20

Emission Control System Warranty

United States Emission Control Defects Warranty Statement

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). 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.

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 1-800-444-3353.

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 1-800-444-3353.

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 autho-

rized 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.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 21

Emission Control System Warranty - continued

Harbor Freight Tools Emission Control Defects Warranty Provisions

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 Mainte-

nance section on pages 15 and 16 of 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.

SKU 95666 For technical questions, please call 1-800-444-3353 PAGE 22