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SECTION 10: TROUBLE-SHOOTING GUIDE
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
Refer to separate engine manual packed with your mower for more engine related information.
Problem Possible Cause Corrective Action
Engine fails to start 1. Blade control handle disengaged
2. Spark plug wire disconnected
3. Fuel tank empty, or stale fuel
4. Blocked fuel line
5. Faulty spark plug
6. Engine flooded
1. Engage blade control handle
2. Connect wire to spark plug
3. Fill up tank with fresh gasoline
4. Clean fuel line
5. Clean, adjust gap, or replace
6. Wait a few minutes and start again
Engine runs erratic 1. Spark plug wire loose
2. Blocked fuel line or stale fuel
3. Vent in gas cap plugged
4. Water or dirt in fuel system
5. Dirty air cleaner
1. Connect and tighten spark plug wire
2. Clean fuel line, fill tank with fresh gas
3. Clear vent
4. Drain fuel tank. Refill with fresh fuel
5. Clean air cleaner. Refer to engine
manual
Engine overheats 1. Engine oil level low
2. Air flow restricted
1. Fill crankcase with proper oil
2. Clean lawn mower engine
Occasional skip at
high speed
1. Spark plug gap too close 1. Adjust gap to.030 inches
Idles poorly 1. Spark plug fouled, faulty, or gap too wide
2. Dirty air cleaner
1. Reset gap to.030 inches or replace
spark plug
2. Clean air cleaner
Excessive vibration 1. Cutting blade loose or unbalanced
2. Bent cutting blade
3. Bent engine crankshaft
1. Tighten blade and adapter, balance
blade
2. Replace blade
3. Contact your nearest service center
Mower will not
mulch grass
1. Wet grass
2. Excessively high grass
3. Dull blade
1. Wait until grass is dry to cut
2. Mow once at a high cutting height,
then mow again at desired height
3. Sharpen or replace blade
Uneven cut 1. Wheels not in same height position
2. Dull blade
1. Reposition all wheels at same height
2. Sharpen or replace blade