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Trouble
Possible Cause(s)
Corrective Action
Engine fails to start
1.
Occasional skip
speed
idles poorly
Engine overheats
(hesitates) at high
2. Spark plug wire disconnected.
position.
4. Fuel tank empty, or stale fuel.
5. Blocked fuel line.
6. Faulty spark plug.
2. Blocked fuel line or stale fuel.
3. Vent in gas cap plugged.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
6. Carburetor out of adjustment.
1. Engine oil level low.
2. Air flow restricted.
1. Spark plug gap too close.
wide.
2. Carburetor improperly adjusted.
3. Dirty air cleaner.
Blade control handle disengaged.
3. Throttle control lever not in correct
3. Carburetor not adjusted properly.
1. Spark plug fouled, faulty or gap too
1. Engage blade control handle.
2. Connect wire to spark plug.
3. Move throttle lever to FAST (rabbit)
position.
4. Fill tank with clean, fresh gasoline.
5. Clean fuel line.
6. Clean, adjust gap or replace.
2. Clean fuel line; fill tank with clean, fresh
gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Clean air cleaner.
6. Adjust carburetor.
3. Adjust carburetor.
1. Adjust gap to .030".
|
1. Reset gap to.030" or replace spark plug.
2. Adjust carburetor.
3. Clean air cleaner.
Excessive vibration
| 1.
Cutting blade loose or unbalanced.
2. Bent cutting blade.
Mower will not mulch | 1. Engine speed too low.
grass
Uneven cut
2. Wet grass.
3. Excessively high grass.
4. Dull blade.
1. Wheels not positioned correctly.
2. Dull blade.
2. Sharpen or replace blade.
1.
Run at full throttle.
3. Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting swath (1/2 width),
4. Sharpen or replace blade.
1. Place all four wheels in same height
position.
15
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