Harbor Freight Tools 62523 User Manual - Page 19

Safety Setup Problem Possible Causes Probable Solutions Engine misfires 1. Spark plug cap loose. 1. Check cap and wire connections. 2. Incorrect spark plug gap or damaged spark plug. 2. Re-gap or replace spark plug. 3. Defective spark plug cap. 3. Replace spark plug cap. 4. Old or low quality gasoline. 4. Use only fresh 87+ octane stabilizer-treated 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: COMPRESSION RELATED section.) Engine stops suddenly 1. Fuel tank empty or full of impure or low quality gasoline. 1. Fill fuel tank with fresh 87+ octane stabilizer-treated unleaded gasoline. Do not use gasoline with more than 10% ethanol (E15, E20, E85, etc.). 2. Low oil shutdown. 2. Fill engine oil to proper level. Check engine oil before EVERY use. 3. Defective fuel tank cap creating vacuum, preventing proper fuel flow. 3. Test/replace fuel tank cap. 4. Faulty magneto. 4. Have qualified technician service magneto. 5. Disconnected or improperly connected spark plug cap. 5. Secure spark plug cap. Engine stops when under heavy load 1. Dirty air filter 2. Engine running cold. 1. Clean element. 2. Allow engine to warm up prior to operating equipment. Engine knocks 1. Old or low quality gasoline. 1. Fill fuel tank with fresh 87+ octane stabilizer-treated unleaded gasoline. Do not use gasoline with more than 10% ethanol (E15, E20, E85, etc.). 2. Engine overloaded. 2. Do not exceed equipment's load rating. 3. Incorrect spark timing, deposit buildup, 3. Have qualified technician diagnose and service engine. worn engine, or other mechanical problems. Engine backfires 1. Impure or low quality gasoline. 1. Fill fuel tank with fresh 87+ octane stabilizer-treated unleaded gasoline. Do not use gasoline with more than 10% ethanol (E15, E20, E85, etc.). 2. Engine too cold. 2. Use cold weather fuel and oil additives to prevent backfiring. 3. Intake valve stuck or overheated engine. 3. Have qualified technician diagnose and service engine. 4. Incorrect timing. 4. Check engine timing. Attached device doesn't have power 1. Device not plugged in properly. 1. Turn off and unplug the device, then plug it back in again and turn on. 2. Circuit Breaker tripped. 2. Turn off and unplug device, reset Circuit Breaker, plug in device and turn on. 3. Product needs service. 3. Have product repaired. Attached device doesn't have power 1. Device not plugged in properly. 1. Turn off and unplug the device, then plug it back in again and turn on. 2. Circuit Breaker tripped. 2. Turn off and unplug device, reset Circuit Breaker, plug in device and turn on. 3. Product needs service. 3. Have product repaired. Attached device begins to operate abnormally 1. Problem with device. 1. Immediately unplug device. Have device repaired by a qualified technician, or replace device. 2. Rated load capacity exceeded. 2. Lower the number of items plugged into the generator to stay within the rated capacity, or use a more powerful generator. Follow all safety precautions whenever diagnosing or servicing the generator or engine. Operation Maintenance ITEM 62523 For technical questions, please call 1-888-866-5797. Page 19