Engine Will Not Start Or Is Hard To Start

FUEL

TROUBLESHOOTING

CAUSE

REMEDY

ENGINE

Engine Will Not Start Or Is Hard To Start

1. Clogged air cleaner

1. Clean. Service more often.

2. Low on fuel

2. Refill fuel tank.

3. Low grade of fuel

3. Change to higher grade of fuel.

4. Restricted fuel lines

4. Service fuel filter. Remove foreign particles from fuel

system. Check source of supply.

5. Ice in fuel system

5. Thaw out entire system. Drain fuel tank and refill with

clean fuel.

6. Insufficient fuel from pump

6. Refer to FUEL PUMP - Troubleshooting Guide,

Insufficient Fuel.

7. Carburetor choke valve inoperative

7. Check and adjust carburetor choke valve so that it will

open and close completely.

8. Defective carburetor (too rich or too lean)

8. Refer to CARBURETOR - Troubleshooting Guide.

9. Filler cap vent plugged

9. Clean the vent in the filler cap.

Black Exhaust Smoke At Idle

1. Carburetor choke valve partially closed

1. Push choke button in. Check and adjust choke valve so

that it opens and closes completely.

2. Air-fuel mixture too rich

2. Refer to CARBURETOR - Troubleshooting Guide.

3. Excessive pump pressure

3. Refer to FUEL PUMP - Troubleshooting Guide.

Black Exhaust Smoke Under Load

1. Restricted exhaust system

1. Check heat control valve. Loosen, if stuck. Replace

restricted muffler and exhaust pipes.

B-47