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173cc Vertical Engine
68122 / 68123 173cc Vertical Engine
Using an engine indoors CAN KILL YOU
IN MINUTES.
Engine exhaust contains carbon monoxide.
This is a poison you cannot see or smell.
NEVER use inside
a home or garage,
EVEN IF doors and
windows are open.
When unpacking, make sure that the product is intact and undamaged. If any parts are missing or broken,
Record Product's Serial Number Here:
(See Serial Number Location on page 7.)
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.
©
Copyright
2010 by Harbor Freight Tools
or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.
Only use OUTSIDE
and far away from
windows, doors,
and vents.
please call 1-800-520-0882 as soon as possible.
Visit our website at: http://www.harborfreight.com
®
. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape
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Table of Contents
Related Manuals for Harbor Freight Tools 68122
Summary of Contents for Harbor Freight Tools 68122
- Page 1 2010 by Harbor Freight Tools 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.
- Page 2 Specifications Engine Type Cooling System Fuel Engine Oil Run Time @ 50% Load with full tank Sound Level Bore x Stroke Displacement Compression Ratio Rotation viewed from PTO (power takeoff - the output shaft) Shaft Spark Plug Valve Clearance Speed Page 2 Vertical Single Cylinder 4 stroke OHV Type...
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Page 3: Symbol Definitions
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). -
Page 4: Setup Precautions
Set up Precautions 1. Gasoline fuel and fumes are flammable, and potentially explosive. Use proper fuel storage and handling procedures. Do not store fuel or other flammable materials nearby. 2. Have multiple ABC class fire extinguishers nearby. 3. Operation of this equipment may create sparks that can start fires around dry vegetation. A spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements. 4. Set up and use only on a flat, level, well-ventilated surface. - Page 5 13. People with pacemakers should consult their physician(s) before use. Electromagnetic fields in close proximity to a heart pacemaker could cause pacemaker interference or pacemaker failure. Caution is necessary when near the engine’s magneto or recoil starter. 14. Use only accessories that are recommended by Harbor Freight Tools for your model.
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Page 6: Service Precautions
Service Precautions 1. Before service, maintenance, or cleaning: a. Release the brake handle, stopping the engine. b. Allow the engine to completely cool. c. Then, remove the spark plug cap from the spark plug. 2. Keep all safety guards in place and in proper working order. - Page 7 Engine Components Fuel Cap Priming Bulb Starter Handle Dipstick Muffler Filter Brake Choke Serial Number Location (Write on front cover of manual.) Vertical Engine For technical questions, please call 1-800-520-0882. Page 7...
- Page 8 U.S. Environmental Protection Agency. For warranty information, refer to the last pages of this manual. Models 68122: The emission control system for this Generator’s Engine is warranted for standards set by the U.S. Environmental Protection Agency and by the California Air Resources Board (also known as CARB).
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Page 9: Pre-Start Checks
Operation Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Pre-Start Checks Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting. - Page 10 Starting Note: Move the mower to a location that is flat, level, and free from loose objects (such as rocks or sticks). The mower may be difficult to start on grass. 1. Press the Priming Bulb 2-3 times to prime the engine. 2. If the engine is cold, adjust the Mower’s choke control to the CHOKE (START/CLOSED) position. Note: Location, operation, and design of the choke control will vary from manufacturer to manufacturer.
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Page 11: Stopping The Engine
4. Grip the Starter Handle of the Engine loosely and pull it 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. -
Page 12: Maintenance Procedures
Service WARNING TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING: Release the brake handle, 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. - 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 the engine off and wait for it to cool before adding fuel.
- Page 14 Spark Plug Maintenance 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.
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Page 15: Troubleshooting
Troubleshooting Problem Engine will not start MOWER ENGINE SPECIFIC: 1. Brake Handle not held or brake cable not connected properly. 2. Mower on top of grass. FUEL RELATED: 1. No fuel in tank. 2. Low quality or deteriorated, old gasoline. 3. - Page 16 Problem Engine misfires 1. Spark plug cap loose. 2. Incorrect spark plug gap or damaged spark plug. 3. Defective spark plug cap. 4. Old or low quality gasoline. 5. Incorrect compression. Engine stops 1. Low oil shutdown. suddenly 2. Fuel tank empty or full of impure or low quality gasoline.
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Page 17: Emission Control System Warranty
(for Model 68123) 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 certified for model year 1997 and later, must be ... - Page 18 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 Length of Coverage HFT warrants to a first retail purchaser and each subsequent ...
- Page 19 Mounting Hole Diagram Note: Not to scale. 1.1 in. / 28mm 0.98 in. / 25mm 6*Ø0.35 in. / 9mm Ø0.24 in. / 6mm Ø8 in. / 203mm Ø0.34 in. / 8.7mm Ø1 in. / 25.4mm Ø0.24 in. / 6mm Ø0.34 in. / 8.7mm 3.94 in.
- Page 20 68122 Parts List and Diagram Part Description Cover, Cylinder Head Gasket, Cylinder Head Cover Head Asm., Cylinder Gasket, Cylinder Head Bolt Plug, Spark Bolt, Cylinder Head Bracket, Muffler Shield Bolt Stud Crankcase Asm. Shield, Crankcase Side Dipstick Asm., Oil Bolt Bolt Bracket, Fuel Tank Right...
- Page 21 68122 Parts List and Diagram 72 73 Vertical Engine 10 8 For technical questions, please call 1-800-520-0882. 10 5 10 6 10 9 10 7 2930 12 0 81 81 10 0 10 1 10 2 10 1 10 4...
- Page 22 68123 Parts List and Diagram Part Description Cover, Cylinder Head Gasket, Cylinder Head Cover Head Asm., Cylinder Gasket, Cylinder Head Bolt Plug, Spark Bolt, Cylinder Head Bracket, Muffler Shield Bolt Stud Crankcase Asm. Shield, Crankcase Side Dipstick Asm., Oil Bolt Bolt Bracket, Fuel Tank Right Seal, Oil Bolt Bolt...
- Page 23 68123 Parts List and Diagram 70 71 Vertical Engine For technical questions, please call 1-800-520-0882. 10 0 29 30 10 9 10 3 79 79 89 90 10 1 10 5 10 2 10 7 10 6 10 8 10 4 Page 23...
- Page 24 3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 520-0882 www.harborfreight.com...
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