6
Trouble
Shooting
For repairs beyond the minor adjust- ments listed here, contact an authorized service dealer.
Problem |
| Cause |
| Remedy | |
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Engine fails to start | 1. | Blade control disengaged. | 1. | Engage blade control. | |
| 2. | Spark plug boot disconnected. | 2. | Connect wire to spark plug. | |
| 3. | Fuel tank empty or stale fuel. | 3. | Fill tank with clean, fresh gasoline. | |
| 4. | CHOKE not activated. | 4. | Choke engine as instructed in | |
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| “Operating Your Lawn Mower”. | |
| 5. | Faulty spark plug. | 5. | Clean, adjust gap, or replace. | |
| 6. | Blocked fuel line. | 6. | Clean fuel line. | |
| 7. | Engine flooded. | 7. | Wait a few minutes to restart. | |
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Engine runs erratic | 1. | Spark plug boot loose. | 1. | Connect and tighten spark | |
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| plug boot. | |
| 2. | Blocked fuel line or stale fuel. | 2. | Clean fuel line; fill tank with clean, | |
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| fresh gasoline. | |
| 3. | Vent in gas cap plugged. | 3. | Clear vent. | |
| 4. | Water or dirt in fuel system. | 4. | Drain fuel tank. Refill with | |
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| fresh fuel. | |
| 5. | Dirty air cleaner. | 5. | Refer to engine maintenance | |
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| section. | |
| 6. | Unit running with CHOKE applied. | 6. | Push CHOKE knob in. | |
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Engine overheats | 1. | Engine oil level low. | 1. | Fill crankcase with proper oil. | |
| 2. | Air flow restricted. | 2. | Remove blower housing | |
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| and clean. | |
Occasional skips | 1. | Spark plug gap too close. | 1. | Adjust gap to .030”. | |
(hesitates) at |
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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 | |
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| too wide. |
| spark plug. | |
| 2. | Dirty air cleaner. | 2. | Refer to engine maintenance | |
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| section. | |
Excessive | 1. | Cutting blade loose or unbalanced. | 1. | Tighten blade and adapter. | |
Vibration |
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| Balance blade. | |
| 2. | Bent cutting blade. | 2. | See an authorized service dealer. | |
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Mower will not | 1. | Wet grass. | 1. | Do not mow when grass is wet; | |
mulch grass (If |
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| wait until later to cut. | |
Equipped) | 2. | Excessively high grass. | 2. | Mow once at a high cutting height, | |
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| then mow again at desired height | |||
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| 3. | Dull blade. |
| or make a narrower cutting path. | |
| 3. | Sharpen or replace blade. | |||
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Uneven cut | 1. | Wheels not positioned correctly. | 1. | Place all four wheels in same | |
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| height position. | |
| 2. | Dull blade. | 2. | Sharpen or replace blade. | |
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Mower will not | 1. | Belt not installed properly. | 1. | Check belt for proper pulley instal- | |
self propel |
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| lation and movement. | |
2. | Debris clogging drive operation. | 2. | Stop engine, disconnect spark plug | ||
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| boot and clean out debris. | |
| 3. | Damaged or worn belt. | 3. | Inspect and replace belt. | |
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12
