Engine Stops Running

FUEL

TROUBLESHOOTING

CAUSE

1. Out of fuel

1. Fill fuel tank.

2. Low grade of fuel

2. Change to a better grade of fuel.

3. Clogged fuel filter or fuel pump defective

3. Service fuel filter more often. Check fuel in tank. If

dirty, drain and clean tank. Refill with clean fuel. Refer to

FUEL PUMP Troubleshooting Guide.

4. Rich or lean air-fuel mixture, defective

4. Refer to CARBURETOR - Troubleshooting

carburetor or fuel pump

Guide, and FUEL PUMP - Troubleshooting Guide.

5. Filler cap vent plugged

5. Clean the vent in the filler cap.

Surging At Governed Speed

1. Rich air-fuel mixture, defective carburetor

1. Refer to CARBURETOR - Troubleshooting or fuel pump

Guide, and FUEL PUMP - Troubleshooting Guide.

2. Dirty or improper governor adjustment

2. Clean linkage and remove binding. Adjust governed

engine RPM.

3. Vacuum leak between throttle body and

3. Replace gaskets and tighten carburetor bowl; throttle

body and intake manifold

mounting screws.

Engine Misses

1. Low grade of fuel

1. Change to a better grade of fuel.

2. Clogged fuel filter or defective fuel pump

2. Service fuel filter more often. Refer to FUEL PUMP -

Troubleshooting Guide.

3. Rich or lean air-fuel mixture, defective

3. Refer to CARBURETOR - Troubleshooting

fuel carburetor or pump

Guide, and FUEL PUMP - Troubleshooting Guide.

4. Fuel not vaporizing before entering the

4. Check and free-up heat control valve.

B-50