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Owner’s Manual & Safety Instructions
Save This Manual Keep this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures. Write the product’s serial number in the back of the manual
near the assembly diagram (or month and year of purchase if product has no number). Keep this manual and
the receipt in a safe and dry place for future reference.
212, 346 and 420 cc
Horizontal Engines
Using an engine indoors
CAN KILL YOU IN MINUTES.
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SAFETY SETUP OPERATION MAINTENANCE Table of Contents Specifications ............................................. 2 Maintenance .............................................. 14 Safety ......................................................... 3 Troubleshooting ......................................... 18 Setup .......................................................... 6 Warranties ................................................. 20 Operation ....................................................
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WARNING SYMBOLS AND DEFINITIONS This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Indicates a hazardous situation which, if not avoided, will result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in death or serious injury. Indicates a hazardous situation which, if not avoided, could result in minor or moderate
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SAFETY SETUP OPERATION MAINTENANCE Set up Precautions 1. Gasoline fuel and fumes are flammable, and 4. Set up and use only on a flat, level, potentially explosive. Use proper fuel storage well-ventilated surface. and handling procedures. Do not store fuel 5. Wear ANSI-approved safety goggles, heavy-duty or other flammable materials nearby. work gloves, and dust mask/respirator during set up. 2. Have multiple ABC class fire extinguishers nearby. 6. Use only lubricants and fuel recommended 3
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Operating Precautions (cont.) 20. Parts, especially exhaust system components, 26. When spills of fuel or oil occur, they must be get very hot during use. Stay clear of hot parts. cleaned up immediately. Dispose of fluids and cleaning materials as per any local, state, or 21. Do not cover the engine or federal codes and regulations. Store oil rags in equipment during operation. a bottom-ventilated, covered, metal container. 22. Keep the equipment, engine, and 27. Keep hands and feet awa
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SAFETY SETUP OPERATION MAINTENANCE 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. Model 68120: The emission control system for this engine is warranted for standards set by the U.S. Environmental Protection Agency. For warranty TO PREVENT SERIOUS INJURY: information, refer to the last pages of this manual. Operate only with proper spark arrestor installed. Operat
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Engine Controls Fuel Cap Air Filter Engine Switch (Electric Start Models) Starter Handle Muffler Oil Drain Plug Throttle Choke Dipstick Starter Fuel Valve (Electric Start Models) Serial Number Location (Write on front cover of manual.) Engine Switch (Manual Start Models) Horizontal Engines For technical questions, please call 1-800-520-0882. Page 7 MAINTENANCE OPERATION SETUP SAFETY
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SAFETY SETUP OPERATION MAINTENANCE Operation Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product. Pre-Start Checks Inspect engine and equipment looking for damaged, loose, and missing parts before set up and starting. If any problems are found, do not use equipment until fixed properly. Checking and Filling Engine Oil NOTICE: Your Warranty is VOID if the engine’s crankcase is
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Checking and Filling Fuel Note: Do not use gasoline containing more than WARNING! TO PREVENT SERIOUS 10% ethanol (E10). Do not use E85 ethanol. INJURY FROM FIRE: Fill the fuel tank in a well-ventilated area Note: Do not use gasoline that has been stored in a away from ignition sources. If the engine is metal fuel container or a dirty fuel container. It can hot from use, shut the engine off and wait cause particles to enter the carburetor, affecting for it to cool before adding fuel
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SAFETY SETUP OPERATION MAINTENANCE Manual Start 1. To start a cold engine, move the Choke to the CHOKE position. 1 To restart a warm engine, leave the Choke in the RUN position. CHOKE RUN 2. Open the Fuel Valve. 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 Throt
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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. 6 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 operatio
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SAFETY SETUP OPERATION MAINTENANCE Electric Start (if equipped) 1. To start a cold engine, move the Choke to the CHOKE position. 1 To restart a warm engine, leave the Choke in the RUN position. CHOKE RUN 2 2. Open the Fuel Valve. 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 3 the Throttle. Use the Speed Control Lever in place
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5. 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. 5 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. 6. Adjust the Throttle as needed. 7. Break-in Period: a. Breaking-in the engine will help to ensure proper equipment and engine operatio
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SAFETY SETUP OPERATION MAINTENANCE Maintenance 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 al
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Checking and Filling Fuel Engine Oil Change WARNING! TO PREVENT SERIOUS CAUTION! Oil is very hot during operation and can INJURY FROM FIRE: cause burns. Wait for engine to cool before changing oil. Fill the fuel tank in a well-ventilated area 1. Make sure the engine is stopped and is level. away from ignition sources. If the engine is 2. Close the Fuel Valve. hot from use, shut the engine off and wait for it to cool before adding fuel. 3. Place a drain pan (not included) underneath Do n
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SAFETY SETUP OPERATION MAINTENANCE Air Filter Element Maintenance Spark Plug Maintenance 1. Remove the air filter cover and the air filter elements and check for dirt. Spark Clean or replace as described below. Plug 2. Cleaning: Cap • 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
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Storage When the equipment is to remain idle for longer than d. Open the fuel valve. After all fuel has 20 days, prepare the engine for storage as follows: drained, reinstall the drain bolt and sediment cup (if equipped). Tighten securely. 1. CLEANING: Wait for engine to cool, then clean engine with 3. LUBRICATION: dry cloth. NOTICE: Do not clean using water. a. Change engine oil. The water will gradually enter the engine b. Clean out area around spark plug. Remove and cause rust dam
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SAFETY SETUP OPERATION MAINTENANCE Troubleshooting Problem Possible Causes Probable Solutions Engine will not start FUEL RELATED: FUEL RELATED: 1. No fuel in tank or fuel valve closed. 1. Fill fuel tank and open fuel valve. 2. Choke not in CHOKE position, cold engine. 2. Move Choke to CHOKE position. 3. Gasoline with more than 10% ethanol 3. Clean out ethanol rich gasoline from fuel used. (E15, E20, E85, etc.) system. Replace components damaged by ethanol. Use fresh 87+ octane unleaded ga
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Problem Possible Causes Probable Solutions Engine misfires 1. Spark plug cap loose. 1. Check wire connections. 2. Incorrect spark plug gap or 2. Re-gap or replace spark plug. damaged spark plug. 3. Defective spark plug cap. 3. Replace spark plug cap. 4. Old or low quality gasoline. 4. Use only fresh 87+ octane unleaded gasoline. Do not use gasoline with more than 10% ethanol (E15, E20, E85, etc.). 5. Incorrect compression. 5. Diagnose and repair compression. (Use Engine will not start: C
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SAFETY SETUP OPERATION MAINTENANCE 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 facili
