Troubleshooting
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PROBLEM | POSSIBLE CAUSE(S) | SOLUTION(S) | ||
Engine difficult to start | 1. Out of fuel | 1. Add fresh fuel. | ||
| 2. | Throttle in Stop Position | 2. | Move Throttle to Start position. |
| 3. | Engine not primed | 3. | Press Primer bulb 3 times, waiting 2 |
| 4. | Engine Flooded | seconds between each push. | |
| 4. | Wait a few minutes before starting. | ||
| 5. | Spark plug wire disconnected | 5. Attach spark plug wire to spark plug. | |
| 6. | Defective throttle control lever or | 6. | Inspect lever and wire. Replace if |
| wire | necessary. | ||
| 7. | Fouled spark plug | 7. | Remove spark plug. Inspect. Replace if |
| 8. | Clogged air filter | necessary. | |
| 8. | Remove and clean air filter. | ||
| 9. | Clogged fuel filter | 9. | Remove fuel filter. Inspect. Replace if |
| 10. Dirty Carburetor | necessary. | ||
| 10. Take unit to an authorized service center | |||
| 11.Contaminated Fuel | for carburetor cleaning. | ||
| 11. Drain fuel tank. Clean fuel tank. Fill with | |||
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| fresh fuel. | |
Engine Problems | 1. No Engine Oil | 1. Add engine oil. | ||
Engine smokes excessively | 2. Engine oil not at proper level | 2. | Check engine oil. Add or drain engine oil if | |
Engine runs very “rough” | 3. Fouled spark plug | necessary. | ||
Engine runs erratically | 3. | Remove spark plug. Inspect. Replace if | ||
Engine cannot maintain full speed | 4. | Clogged air filter | necessary. | |
| 4. | Remove and clean air filter. | ||
| 5. | Clogged fuel filter | 5. | Remove fuel filter. Inspect. Replace if |
| 6. | Carburetor out of adjustment | necessary. | |
| 6. | Take unit to an authorized service center | ||
| 7. | Contaminated Fuel | for carburetor adjustment. | |
| 7. | Drain fuel tank. Clean fuel tank. Fill with | ||
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| fresh fuel. | |
Excessive vibration / noise | 1. Loose parts | 1. | Tighten all fasteners. | |
| 2. | Trimmer lines unequal length | 2. | Replace with trimmer lines of equal length. |
| 3. | Set screws in trimmer head loose | 3. | Tighten set screws with |
| 4. | Engine problems (above) | 4. | Refer to engine solutions (above). |
Engine Overheats | 1. Clogged Cooling system | 1. | Remove debris from recoil starter cover | |
| 2. | Engine problems (above) | and cooling fins. | |
| 2. | Refer to engine solutions (above). | ||
Engine will not stop | Defective throttle control lever or wire | Inspect lever and wire. Replace if necessary. | ||
Poor Trimming performance | 1. Trimmer line is too short | 1. | Replace with correct length trimmer line | |
| 2. | Engine not at full throttle | (22 inches). | |
| 2. | Move throttle lever to FAST position. | ||
| 3. | Engine problems (above) | 3. | Refer to engine solutions (above). |
Trimmer head does not retain line | 1. Trimmer line not properly attached | 1. | Follow instructions in maintenance section | |
| 2. | Broken line retainer | for attaching line. | |
| 2. | Have trimmer head assembly replaced. | ||
| 3. | Trimmer line not correct size | 3. | Use a 0.155 in. (4 mm) trimmer line. |
| 4. | Trimmer line too brittle | 4. | Use a trimmer line that has been soaking |
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| in water. |
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