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SECTION9: TROUBLESHOOTING
Problem Cause
Engine fails to start 1. Blade control handle disengaged. 1.
2. Spark plug wire disconnected. 2.
3. Fuel tank empty or stale fuel. 3.
4. Blocked fuel line. 4.
5. Faulty spark plug. 5.
6. Engine flooded 6.
Engine runs erratic 1. Spark plug wire loose. 1.
2. Blocked fuel line or stale fuel. 2.
3. Vent in gas plugged.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
6. Carburetor out of adjustment.
1. Engine oil level low.
2. Airflow restricted.
3. Carburetor not adjusted properly.
1. Spark plug gap too close.
Engine overheats
Occasional skip (hesitates)
at high speed
Idles poorly 1. Spark plug fouled, faulty or gap too
wide.
2. Carburetor improperly adjusted.
3. Dirty air cleaner.
Excessive vibration 1. Cutting blade loose or unbalanced.
2. Bent cutting blade.
Mower will not mulch grass 1. Engine speed too low.
2. Wet grass.
Uneven cut
3. Excessively high grass.
4. Dull blade.
1. Wheels not positioned correctly.
2. Dull blade.
3.
4.
5.
6.
1.
2.
3.
1.
Remedy
Engage blade control handle.
Connect wire 'to spark plug.
Fill tank with clean, fresh gasoline.
Clean fuel line.
Clean, adjust gap, or replace.
Engine must be set at FULL throttle.
Connect and tighten spark plug wire.
Clean fuel line; fill tank with clean, fresh
gasoline
Clear vent.
Drain fuel tank. Refill with fresh fuel.
Clean air cleaner.
Adjust carburetor.
Fill crankcase with proper oil.
Remove blower housing and clean.
Adjust carburetor.
Adjust gap to .030".
1. Reset gap to .030" or replace spark
plug.
2. Adjust carburetor.
3. Clean air cleaner.
1. Tighten blade and adapter. Balance
blade.
2. Replace blade.
1. Engine must be set at FULL throttle.
2. Do not mow when grass is wet; wait
until later to cut.
3. Mow once at a high cutting height, then
mew again at desired height or make a
narrower cutting path.
4. Sharpen or replace blade.
1. Place all four wheels in same height
position.
2. Sharpen or replace blade.
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
15
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