SECTION 11: TROUBLE SHOOTING GUIDE
Trouble | Possible Cause(s) | Corrective Actions | ||
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Engine fails to | 1. | Control handle disengaged. | 1. | Engage blade control handle. |
start | 2. | Spark plug wire disconnected. | 2. | Connect wire to spark plug. |
| 3. | Dirty air cleaner. | 3. | Refer to the engine manual packed with your unit. |
| 4. | Primer button not depressed. | 4. | Refer to the engine manual. |
| 5. | Throttle control lever not in | 5. | Move throttle lever to FAST or START position. |
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| correct starting position . |
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| 6. | Fuel tank empty or stale fuel. | 6. | Clean fuel line. |
| 7. | Blocked fuel line . | 7. | Clean, adjust gap or replace. |
| 8. | Faulty spark plug. | 8. | Refer to the engine manual. |
| 9. | Engine flooded. | 9. | Wait for a while and crank the engine. |
Engine runs | 1. | Unit running in START position. | 1. | Move throttle lever to FAST position. |
erratic | 2. | Spark plug wire loose. | 2. | Connect and tighten spark plug wire. Check spark plug |
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| for fouling. |
| 3. | Blocked fuel line or stale fuel. | 3. | Clean fuel line; fill tank with clean, fresh gasoline. |
| 4. | Carburetor out of adjustment. | 4. | Refer to the engine manual packed with your unit. |
Engine | 1. | Engine oil level low. | 1. | Fill crankcase with proper oil. |
overheats | 2. | Dirty aircleaner. | 2. | Refer to the engine manual. |
| 3. | Air flow restricted. | 3. | Stop engine and disconnect spark plug wire. Remove |
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| blower housing and clean. |
| 4. | Carburetor not adjusted. | 4. | Refer to the engine manual. |
Occasional | 1. | Spark plug gap too close. | 1. | Adjust gap to .030". |
skip | 2. | Carburetor idle mixture | 2. | Refer to the engine manual. |
(hesitates) at |
| adjustment improperly set. |
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high speed |
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Idles poorly | 1. | Spark plug fouled, faulty or gap | 1. | Reset gap to .030" or replace spark plug. |
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| too wide. |
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| 2. | Carburetor not adjusted. | 2. | Refer to the engine manual. |
Excessive | 1. | Cutting blade loose or | 1. | Tighten blade and adapter. Balance blade. |
vibration |
| unbalanced. |
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| 2. | Bent cutting blade. | 2. | Replace blade. |
Mower will not | 1. | Engine speed too low | 1. | Set throttle between 3/4 and full throttle. |
mulch grass | 2. | Wet grass. | 2. | Wait until later to cut. |
| 3. | Excessively high grass. | 3. | Mow once at a high cutting height, then mow again at |
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| desired height . |
Uneven cut | 1. | Wheels positioned incorrectly. | 1. | Place all four wheels in same height position. |
| 2. | Dull blade. | 2. | Sharpen or replace blade. |
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