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Walk-Behind Lawn Mower » Operator's Manual
TROUBLESHOOTING
Problem
Cause
Remedy
1. Blade control disengaged.
1. Engage blade control.
2. Spark plug boot disconnected.
2. Connect wire to spark plug boot.
3. Fuel tank empty or stale fuel.
3. Fill tank with clean, fresh gasoline.
Engine fails to start
4. Engine not primed (If equipped with
4. Prime engine as instructed in the
primer).
Operation section of the Engine Manual.
5. Faulty spark plug.
5. Clean, adjust gap, or replace.
6. Engine flooded.
6. Wait a few minutes to restart.
1. Connect and tighten spark plug boot.
1. Spark plug boot loose.
2. Fill tank with clean, fresh gasoline.
2. Stale fuel.
3. Clear vent.
3. Vent in gas cap plugged.
4. Run engine until it stops from lack of fuel.
Engine runs erratic
4. Water or dirt in fuel system.
Reflll with fresh fuel.
5. Dirty air cleaner.
5. Refer to Air Cleaner Maintenance in the
Engine Manual.
6. Blocked fuel line.
6. Contact your Parts & Repair Center to
have fuel line cleaned.
Engine overheats
1. Engine oil level low.
1. Fill crankcase with proper oil.
2. Air flow restricted.
2. Clean area around and on top of engine.
1. Spark plug fouled, faulty, or gap too
1. Reset gap or replace spark plug.
Idles poorly
wide.
2. Refer to Air Cleaner Maintenance in the
2. Dirty air cleaner.
Engine Manual.
Excessive vibration
1. Cutting blade loose or unbalanced.
1. Tighten blade and adapter. Balance blade.
2. Bent cutting blade.
2. Replace blade.
1. Do not mow when grass is wet; wait until
1. Wet grass.
dry to cut.
Mower will not mulch
2. Excessively high grass.
2. Mow once at a high cutting height, then
grass
mow again at desired height or make a
3. Dull blade.
narrower cutting path.
3. Sharpen or replace blade.
1. Buildup of grass, leaves and debris
1. Clean underside of mower housing.
Uneven cut
under mower.
2. Dull blade.
2. Sharpen or replace blade.
Troubleshooting I
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