Troubleshooting - Briggs & Stratton Portable Generator Operator's Manual

Troubleshooting

Problem
Engine is running, but no AC
output is available.
Engine runs well at no-load but
"bogs down" when loads are
connected.
Engine will not start; or starts
and runs rough.
Engine shuts down when
running.
Engine lacks power.
Engine "hunts" or falters.
Cause
1. One of the circuit breakers is open.
2. Fault in generator.
3. Poor connection or defective cord set.
4. Connected device is bad.
1. Short circuit in a connected load.
2. Engine speed is too slow.
3. Generator is overloaded.
4. Shorted generator circuit.
1. Engine switch set to "Off".
2. Fuel valve is in "Off" position.
3. Low oil level.
4. Dirty air cleaner.
5. Out of fuel.
6. Stale fuel.
7. Spark plug wire not connected to spark
plug.
8. Bad spark plug.
9. Water in fuel.
10. Flooded.
11. Excessively rich fuel mixture.
12. Intake valve stuck open or closed.
13. Engine has lost compression.
1. Out of fuel.
2. Low oil level.
1. Load is too high.
2. Dirty air filter.
Carburetor is running too rich or too lean.
Correction
1. Reset circuit breaker.
2. Contact authorized service facility.
3. Check and repair.
4. Connect another device that is in good
condition.
1. Disconnect shorted electrical load.
2. Contact authorized service facility.
3. See Don't Overload Generator.
4. Contact authorized service facility.
1. Set switch to "On".
2. Turn fuel valve to "Open" position.
3. Fill crankcase to proper level or place
generator on level surface.
4. Clean or replace air cleaner.
5. Fill fuel tank.
6. Drain fuel tank and carburetor; fill with
fresh fuel.
7. Connect wire to spark plug.
8. Replace spark plug.
9. Drain fuel tank and carburetor; fill with
fresh fuel.
10. Wait 5 minutes and re-crank engine.
11. Contact authorized service facility.
12. Contact authorized service facility.
13. Contact authorized service facility.
1. Fill fuel tank.
2. Fill crankcase to proper level or place
generator on level surface.
1. See Don't Overload Generator.
2. Replace air filter.
Contact authorized service facility.
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