SECTION 12: 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 fast position | 3. Move throttle lever to fast position. |
| 4. Fuel tank empty, or stale fuel | 4. Fill tank with fresh, clean fuel. |
| 5. Blocked fuel line | 5. Clean fuel line. |
| 6. Faulty spark plug | 6. Clean, adjust gap or replace. |
| 7. Engine flooded | 7. Crank engine with throttle in slow |
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| position. |
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 White dealer |
Mower will not | 1. Engine speed too low | 1. Move throttle lever to FAST position. |
mulch grass | 2. Wet grass | 2. Wait until later to cut. |
| 3. Excessively high grass | 3. Mow once at a high cutting height, then |
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| mow again at desired height. Make a |
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| narrower cutting swath (1/2) width. Do |
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| not cut off more than 1/3 of the total |
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| length. |
| 4. Dull blade | 4. Sharpen or replace blade. |
Uneven cut | 1. Wheels not in same height position | 1. Place all four wheels in same relative |
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| height position. |
| 2. Dull blade | 2. Sharpen or replace blade. |
For repairs beyond the minor adjustments listed above, please contact your nearest White Outdoor Products dealer.
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