Table of Contents SAFETY Specifications ............................................. 2 Safety ......................................................... 3 Setup .......................................................... 6 Operation .................................................... 8 Maintenance .............................................. 12 Troubleshooting ......................................... 16 Warranties ................................................. 18 Parts Lists and Diagrams ..........
WARNING SYMBOLS AND DEFINITIONS This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. SAFETY Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Set up Precautions SAFETY 1. Gasoline fuel and fumes are flammable, and potentially explosive. Use proper fuel storage and handling procedures. Do not store fuel or other flammable materials nearby. 4. Set up and use only on a flat, level, well-ventilated surface. 2. Have multiple ABC class fire extinguishers nearby. 6. Use only lubricants and fuel recommended in the Specifications chart of this manual. 3. Operation of this equipment may create sparks that can start fires around dry vegetation.
21. Do not cover the engine or equipment during operation. 22. Keep the equipment, engine, and surrounding area clean at all times. 23. Use the equipment, accessories, etc., in accordance with these instructions and in the manner intended for the particular type of equipment, taking into account the working conditions and the work to be performed. Use of the equipment for operations different from those intended could result in a hazardous situation. 24.
Set Up Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. SAFETY TO PREVENT SERIOUS INJURY: Operate only with proper spark arrestor installed. Operation of this equipment may create sparks that can start fires around dry vegetation. A spark arrestor may be required. The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements.
High Altitude Operation Above 3000 feet The fuel system on this engine may be influenced by operation at higher altitudes. Proper operation can be ensured by installing an altitude kit at altitudes higher than 3000 ft. above sea level. At elevations above 8000 ft, the engine may experience decreased performance, even with the proper main jet. Operating this engine without the proper altitude kit installed may increase the engine’s emissions and decrease fuel economy and performance.
Operation Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. SAFETY Pre-Start Checks Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting. If any problems are found, do not use equipment until fixed properly.
Checking and Filling Fuel 2. Unscrew and remove the Fuel Cap. 3. If needed, fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline. Note: Do not use gasoline 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.
Manual Start SAFETY 1. To start a cold engine, move the Choke to the CHOKE position. To restart a warm engine, leave the Choke in the RUN position. 1 CHOKE 2. Open the Fuel Valve. RUN SETUP 2 3. Slide the Throttle or Speed Control Lever to 1/3 away from the SLOW position (the “turtle”). Note: Some tools have a Speed Control Lever located elsewhere on the tool which functions the same as the Throttle. Use the Speed Control Lever in place of the Throttle when the tool is so equipped.
6 SAFETY 6. Allow the Engine to run for several seconds. Then, if the Choke lever is in the CHOKE position, move the Choke Lever very slowly to its RUN position. Note: Moving the Choke Lever too fast could stall the engine. CHOKE RUN IMPORTANT: Allow the engine to run at no load for five minutes with no load after each start-up so that the engine can stabilize. 7. Adjust the Throttle as needed. 8. Break-in Period: a. Breaking-in the engine will help to ensure proper equipment and engine operation. b.
Maintenance WARNING SAFETY TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING: Turn the Power Switch of the equipment to its “OFF” position, wait for the engine to cool, and disconnect the spark plug cap before performing any inspection, maintenance, or cleaning procedures. TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE: Do not use damaged equipment. If abnormal noise, vibration, or excess smoking occurs, have the problem corrected before further use. Follow all service instructions in this manual.
Checking and Filling Fuel Engine Oil Change WARNING! TO PREVENT SERIOUS INJURY FROM FIRE: Fill the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before adding fuel. Do not smoke. CAUTION! Oil is very hot during operation and can cause burns. Wait for engine to cool before changing oil. 1. Clean the Fuel Cap and the area around it. 4.
Air Filter Element Maintenance 1. Remove the air filter cover and the air filter elements and check for dirt. Clean or replace as described below. 2. Cleaning: SAFETY • For “paper” filter elements: To prevent injury from dust and debris, wear ANSI-approved safety goggles, NIOSH-approved dust mask/respirator, and heavy-duty work gloves. In a well-ventilated area away from bystanders, use pressurized air to blow dust out of the air filter. If this does not get the filter clean, replace it.
Storage WARNING! TO PREVENT SERIOUS INJURY FROM FIRE: Drain the fuel tank in a well-ventilated area away from ignition sources. If the engine is hot from use, shut the engine off and wait for it to cool before draining fuel. Do not smoke. a. Place a funnel leading to a proper gasoline container below the carburetor. Sediment Cup (some engines) Drain Plug b. Remove the drain bolt from the bottom of the carburetor bowl and allow the fuel to drain. b. Clean out area around spark plug.
Troubleshooting Possible Causes Engine will not start FUEL RELATED: 1. No fuel in tank or fuel valve closed. 2. Choke not in CHOKE position, cold engine. 3. Gasoline with more than 10% ethanol used. (E15, E20, E85, etc.) SAFETY Problem Probable Solutions 9. Clogged Fuel Filter. FUEL RELATED: 1. Fill fuel tank and open fuel valve. 2. Move Choke to CHOKE position. 3. Clean out ethanol rich gasoline from fuel system. Replace components damaged by ethanol. Use fresh 87+ octane unleaded gasoline only.
5. Incorrect compression. Engine stops suddenly 1. Low oil shutdown. 2. Fuel tank empty or full of impure or low quality gasoline. 3. Defective fuel tank cap creating vacuum, preventing proper fuel flow. 4. Faulty magneto. 5. Disconnected or improperly connected spark plug cap. 1. Check wire connections. 2. Re-gap or replace spark plug. 3. Replace spark plug cap. 4. Use only fresh 87+ octane unleaded gasoline. Do not use gasoline with more than 10% ethanol (E15, E20, E85, etc.). 5.
Warranties Limited 90 Day Warranty SAFETY 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.
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 6.
Parts Lists and Diagrams 69727 Parts List SAFETY Part SETUP OPERATION MAINTENANCE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Description Gasket, Cylinder Head Cover Subassembly, Cylinder Head Gasket, Cylinder Head Cover Tube, Breather Bolt Stud Stud Pin Bolt, Cylinder Head Plug, Spark Head Subassembly, Cylinder Crankcase Subassembly Sensor, Engine Oil Gear Asm, Governor Arm, Governor Bolt, Drain Plug Washer, Flat
SAFETY 9 10 69 7 71 7 29 29 29 27 29 35 36 37 1 29 29 31 8 8 28 23 32 31 18 33 49 48 26 25 24 34 47 47 51 46 46 50 45 38 43 4 2 4 2 39 50 4 1 44 4 1 44 4 3 51 25 SETUP 70 3 9 6 49 48 30 22 40 22 91 93 13 90 14 92 89 93 88 18 16 17 15 21 86 87 67 68 67 20 78 19 85 75 84 84 76 77 17 83 79 16 79 82 57 72 81 57 80 58 56 73 52 74 61 59 55 Note: If product has no serial number, record month and year of purchase instead.
69730 Parts List Part SAFETY SETUP OPERATION MAINTENANCE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Description Gasket, Cylinder Head Cover Subassembly, Cylinder Head Gasket, Cylinder Head Cover Tube, Breather Bolt Stud Stud Stud Pin Bolt, Cylinder Head Plug, Spark Head Subassembly, Cylinder Crankcase Subassembly Sensor, Engine Oil Gear Assy, Governor Arm, Governor Bolt, Drain Plug Washer Bearing Seal, O
SAFETY 76 76 10 11 8 75 8 77 6 31 31 1 31 9 31 31 9 33 31 30 37 38 39 7 26 24 34 35 25 33 29 28 51 51 36 53 52 53 52 27 28 47 47 49 43 5446 44 54 41 48 50 50 45 48 SETUP 3 12 40 42 14 93 23 93 32 23 15 92 95 97 94 96 19 17 98 99 16 22 18 73 21 81 82 85 85 17 82 78 89 18 102 101 90 90 82 74 20 91 83 13 84 OPERATION 2 10 10 10 4 67 72 72 88 62 79 100 86 80 87 62 58 59 55 64 66 65 60 57 63 56 MAINTENANCE
Mounting Hole Diagram 6.38 in. / 162mm 2.6 in. / 66mm 3.17 in. / 80.5mm 2.97 in. / 75.5mm 1.6 in. / 40.5mm Power Take-Off Diagram 2.43 in. / 61.7mm 5/16-24UNF 0.67 in. / 17mm Ø3.625 in. / 92mm Note: 4.17 in. / 106mm 4x5/16-24UNF Ø0.75 in. / 19.05mm 0.64 in. / 16.36mm 0.1875 in. / 4.78mm Not to scale. 3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • 1-800-520-0882 5/16-24UNF 1.79 in. / 45.
