SECTION 10: TROUBLE-SHOOTING GUIDE
PROBLEM |
| POSSIBLE CAUSE | CORRECTIVE ACTION |
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Engine fails to start | 1. | Blade control handle disengaged | 1. Engage blade control handle |
| 2. Spark plug wire disconnected | 2. Connect wire to spark plug | |
| 3. Throttle control lever not in starting position | 3. Move throttle lever to correct position | |
| 4. Fuel tank empty, or stale fuel | 4. Fill up tank with fresh gasoline | |
| 5. Blocked fuel line | 5. Clean fuel line | |
| 6. Faulty spark plug | 6. Clean, adjust gap, or replace | |
| 7. Engine flooded | 7. Wait a few minutes and start again. | |
Engine runs erratic | 1. | Spark plug wire loose | 1. Connect and tighten spark plug wire. |
| 2. Blocked fuel line or stale fuel | 2. Clean fuel line, fill tank with clean, fresh | |
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| gasoline. |
| 3. Vent in gas cap plugged | 3. Clear vent. | |
| 4. Water or dirt in fuel system | 4. Drain fuel tank. Refill with fresh fuel. | |
| 5. Dirty air cleaner | 5. Clean air cleaner. Refer to engine | |
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| manual. |
Engine overheats | 1. | Engine oil level low | 1. Fill crankcase with proper oil. |
| 2. Air flow restricted | 2. Clean lawn mower engine. | |
Occasional skip | 1. | Spark plug gap too close | 1. Adjust gap to.030 inches. |
(hesitates) at high |
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speed |
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Idles poorly | 1. | Spark plug fouled, faulty, or gap too wide | 1. Reset gap to.030 inches or replace |
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| spark plug. |
| 2. Dirty air cleaner | 2. Clean air cleaner. | |
Excessive vibration | 1. | Cutting blade loose or unbalanced | 1. Tighten blade and adapter, balance |
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| blade. |
| 2. Bent cutting blade | 2. Replace blade. | |
| 3. Bent engine crankshaft | 3. Contact your nearest service center | |
Mower will not | 1. | Engine speed too low | 1. Move throttle lever to FAST position. |
mulch grass | 2. Wet grass | 2. Wait until grass is dry to cut. | |
| 3. Excessively high grass | 3. Mow once at a high cutting height, then | |
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| mow again at desired height. |
| 4. Dull blade | 4. Sharpen or replace blade. | |
Uneven cut | 1. Wheels not in same height position | 1. Reposition all wheels at same height. | |
| 2. Dull blade | 2. Sharpen or replace blade. | |
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