TROUBLESHOOTING GUIDE
Problem | Cause |
Engine fails to start | Fuel level is low. |
| Spark plug lead wire disconnected. |
| Throttle or choke not in starting position. |
| Spark plug defective. |
| Carburetor improperly adjusted. |
| Old/stalegasoline. |
| Engine kill switch in off position. |
Hard starting or loss of power | Carburetor improperly adjusted. |
| Spark plug wire loose. |
| Dirty air cleaner. |
Operation erratic | Dirt in gasoline tank. |
| Dirty air cleaner. |
| Water in fuel supply. |
| Vent in gas cap and/or carburetor plugged. |
| Carburetor improperly adjusted. |
Engine skips at high speed | Spark plug fouled, faulty, or gap too wide. |
| Carburetor improperly adjusted. |
| Dirty air cleaner. |
Engine idles poorly | Carburetor idle speed too slow. |
| Carburetor improperly adjusted. |
| Spark plug gap too close. |
| Carburetor idle mixture improperly set. |
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