Troubleshooting
22
Problem
ENGINE BACKFIRES
THE ATTACHED
DEVICE DOESN'T
HAVE POWER
ENGINE STOPS
SUDDENLY
ENGINE STOPS WHEN
UNDER HEAVY LOAD
ENGINE KNOCKS
2. Fuel tank empty or full of impure or low-quality
gasoline.
3. Defective fuel tank cap creates a vacuum and
prevents proper fuel flow.
4. Faulty magneto.
5. Disconnected or improperly connected spark plug
cap.
1. Dirty air filter
2. Engine running cold.
1. Old or low-quality gasoline.
2. Engine overloaded.
3. Incorrect spark timing, deposit buildup, worn
engine, or other mechanical problems.
1. Impure or low-quality gasoline.
2. Engine too cold.
3. Intake valve stuck or an overheated engine.
4. Incorrect timing.
1. Device not plugged in properly.
2. Circuit Breaker tripped.
3. Product needs service.
2. Fill fuel tank with fresh 87+ octane stabilizer
treated unleaded gasoline. Do not use gasoline
with more than 10% ethanol(E15, E20,E85,etc.).
3. Test/replace fuel tank cap.
4. Have qualified technician service magneto.
5. Secure spark plug cap.
1. Clean element.
2. Allow the engine to warm up prior to
operating equipment.
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. Do not exceed the equipment's load rating.
3. Have a qualified technician diagnose and
service the engine.
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. Use cold weather fuel and oil additives
to prevent backfiring.
3. Have a qualified technician diagnose and
service the engine.
4. Check engine timing.
1. Turn off and unplug the device,
then plug it back in again and turn it on.
2. Turn off and unplug the device, reset the
Circuit Breaker, plug in the device and turn on.
3. Have the product repaired.
Possible Causes
Probable Solutions
Follow all safety precautions whenever diagnosing or servicing the generator or engine.
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