16Section 5: Maintenance
WARNING
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a stop, disconnect spark plug wire and move wire away from spark plug. Remove ignition key on electric start models.
Failure to follow these instructions can result in serious personal injury or property damage.
TROUBLESHOOTING
Before performing any of the corrections in this Troubleshooting Chart, refer to the appropriate information contained in this Manual or the Engine Owner’s Manual for the correct safety precautions and servicing procedures. Contact your local autho- rized Engine Service Dealer for engine service. Contact your local authorized dealer for service problems with the machine.
PROBLEM |
| POSSIBLE CAUSE |
| CORRECTION |
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Engine does not start. | 1. | Spark plug wire disconnected. | 1. | Reconnect wire. |
| 2. | Defective or incorrectly gapped spark plug. | 2. | Inspect/replace spark plug. |
| 3. | Fuel tank empty. | 3. | Add fuel. |
| 4. | Dirty carburetor or fuel line. | 4. | Clean carburetor or fuel line. |
| 5. | Dirty air cleaner. | 5. | Clean or replace. |
| 6. | Carburetor out of adjustment. | 6. | Adjust carburetor. See Engine Service Dealer. |
| 7. | Engine flooded. | 7. | Wait several minutes before starting. |
| 8. | Engine Throttle Lever in incorrect position. | 8. | Move Throttle Lever to FAST position. |
| 9. | Stale gasoline. | 9. | Drain old fuel and add fresh fuel. |
| 10. | Defective Engine Throttle Lever. | 10. | See Engine Service Dealer. |
| 11. | Dirt or water in fuel tank. | 11. | See Engine Service Dealer. |
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Engine runs poorly. | 1. | Bad spark plug. | 1. | Inspect/replace spark plug. |
| 2. | Dirty air filter. | 2. | Clean or replace. |
| 3. | Carburetor out of adjustment. | 3. | Adjust carburetor. See Engine Service Dealer. |
| 4. | Stale fuel. | 4. | Drain and replace fuel. |
| 5. | Dirt or water in fuel tank. | 5. | See Engine Service Dealer. |
| 6. | Engine cooling system clogged. | 6. | Clean fins. |
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Engine overheats. | 1. | Engine cooling system clogged. | 1. Clean air cooling areas and behind debris shield. | |
| 2. | Carburetor out of adjustment. | 2. | Adjust Carburetor. See Engine Service Dealer. |
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Engine does not shut off. | Throttle control misadjusted. | See Engine Service Dealer. | ||
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. | 1. | Line length is too short or too long. | 1. | Adjust line length to 18" long. When less |
Poor mowing performance. | ||||
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| than 1/2 this length, replace the line. |
| 2. | Cutting height is too high or low for height | 2. | Adjust cutting height to approximately 1/3 |
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| of grass being cut. |
| of the length of the grass. |
| 3. | Engine not set at FAST speed. | 3. | Move Engine Throttle Lever to FAST (Rabbit). |
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Machine vibrates. | 1. | Trimming head mounting bolt loose. | 1. | Tighten bolt. |
| 2. | Line lengths are substantially different. | 2. | Adjust lines to approximately equal lengths. |
| 3. | Loose nuts or bolts. | 3. | Check all bolts and nuts, including engine |
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| bolts. |
| 4. Broken spindle head or trimmer head. | 4. | Replace broken part. | |
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Trimmer head does not | Incorrect line installation. | See “Changing Trimmer Lines” in Section 5. | ||
retain line. |
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Trimmer Head does not | 1. | Head bolts may be loose. | 1. | Tighten head bolts to 75 in/lbs. |
retain height setting. | 2. | Head is worn. | 2. | Replace head assembly. |
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