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22 BRIGGSandSTRATTON.COM
PROBLEM CAUSE CORRECTION
Compressor is not
supplying enough air to
operate accessories.
1. Prolonged excessive use of air.
2. Compressor is not large enough for air
requirement.
3. Hole in hose.
4. Check valve restricted or leaks air.
5. Restricted air intake filter.
1. Decrease amount of air used.
2. Check the accessory requirement. If it is higher
than the CFM or pressure supplied by your air
compressor, you need a larger capacity air
compressor.
3. Inspect and replace if required.
4. Contact trained service technician.
5. Clean or replace air intake filter.
Engine will not start;
lacks power; starts and
runs rough; or engine
speed constantly
fluctuates (hunts).
1. Engine switch set to Off.
2. Fuel valve is in Off position.
3. Dirty air cleaner.
4. Out of fuel.
5. Stale or contaminated fuel, or water in
fuel.
6. Spark plug wire not connected to spark
plug.
7. Bad spark plug.
8. Excessive fuel is present in the air/fuel
mixture causing a “flooded” condition.
9. Excessively rich fuel mixture.
10. Intake valve stuck open or closed.
11. Engine has lost compression.
12. Carburetor is running too rich or too
lean.
1. Set switch to On.
2. Turn fuel valve to On position.
3. Clean or replace air cleaner.
4. Wait two minutes and fill fuel tank.
5. Drain fuel tank and carburetor; fill with fresh
fuel.
6. Connect wire to spark plug.
7. Replace spark plug.
8. Wait 5 minutes and re-start engine.
9. Contact Authorized service facility.
10. Contact Authorized service facility.
11. Contact Authorized service facility.
12. Contact Authorized service facility.
Engine shuts down when
running.
Out of fuel. Wait two minutes and fill fuel tank.
Compressor will not run.
1. Tank pressure exceeds pressure switch
“cut-in” pressure.
2. Start valve on idle control valve has not
unloaded head pressure.
1. Engine will go from idle to full speed when
tank pressure drops below “cut-in” pressure
setting.
2. Drain pressure by opening start valve. If the
toggle does not open, pull safety valve ring.
Replace idle control valve.