Troubleshooting
Problem |
| Possible Causes |
| Probable Solutions |
Engine will not start | Starting instructions not followed | Refer to starting instructions and | ||
| completely. | follow them | ||
| Fuel Related: | Fuel Related: | ||
| 1. | No fuel in tank or fuel valve closed. | 1. | Fill fuel tank and open fuel valve. |
| 2. | Choke not in start position, | 2. | Move choke to start position if |
|
| especially with cold engine. |
| engine is cold. |
| 3. | Low quality or deteriorated, old | 3. | Use only fresh 89+ octane unleaded |
|
| gasoline. |
| gasoline. |
| 4. | Dirty fuel passageways blocking | 4. | Clean out passageways using |
|
| fuel flow. |
| fuel additive. Heavy deposits may |
|
|
|
| require further cleaning. |
| 5. | Carburetor needle stuck. Fuel can | 5. | Gently tap side of carburetor float |
|
| be smelled in the air. |
| chamber with screwdriver handle. |
| 6. | Too much fuel in chamber. This can | 6. | Turn choke to run position. Remove |
|
| be caused by the carburetor needle |
| spark plug and pull the start |
|
| sticking. |
| handle several times to air out the |
|
|
|
| chamber. Reinstall spark plug and |
|
|
|
| set choke to start position. |
| Ignition (spark) Related: | Ignition (spark) Related: | ||
| 1. | Spark plug wire not connected | 1. | Connect spark plug wire properly. |
|
| securely. |
|
|
| 2. | Spark plug electrode wet or dirty. | 2. | Clean spark plug. |
| 3. | Incorrect spark plug gap. | 3. | Correct spark plug gap. |
| 4. | Spark plug wire broken. | 4. | Replace spark plug wire. |
| 5. | Incorrect spark timing or faulty | 5. | Have qualified technician diagnose/ |
|
| ignition system. |
| repair ignition system. |
| Compression Related: | Compression Related: | ||
| 1. | Cylinder not lubricated. Problem | 1. | Pour tablespoon of oil into spark |
|
| after long storage periods. |
| plug hole. Crank engine a few |
|
|
|
| times and try to start again. |
| 2. | Loose or broken spark plug. | 2. | Tighten spark plug. If that does |
|
| (Hissing noise will occur when trying |
| not work, replace spark plug. If |
|
| to start.) |
| problem persists, may have head |
|
|
|
| gasket problem, see #3. |
| 3. | Loose cylinder head or damaged | 3. | Tighten head. If that does not |
|
| head gasket. (Hissing noise will |
| remedy problem, replace head |
|
| occur when trying to start.) |
| gasket. |
| 4. | Engine valves or tappets | 4. | Adjust valve clearance. If that does |
|
| misadjusted or stuck. |
| not work, clean or replace valves/ |
|
|
|
| tappets. |
Follow all safety precautions whenever diagnosing or servicing the equipment or engine.
SKU 67596 | For technical questions, please call | Page 21 |