Troubleshooting
8
17
Problem
Cause
Remedy
Engine Fails to start
Blade control disengaged.
1.
Spark plug boot disconnected.
2.
Fuel tank empty or stale fuel.
3.
Faulty spark plug.
4.
Blocked fuel line.
5.
Engine flooded.
6.
Engage blade control.
1.
Connect wire to spark boot.
2.
Fill tank with clean, fresh gasoline.
3.
Clean, adjust gap, or replace.
4.
Clean fuel line.
5.
Wait a few minutes to restart.
6.
Engine runs erratic
Spark plug boot loose.
1.
Blocked fuel line or stale fuel.
2.
Vent in gas cap plugged.
3.
Water or dirt in fuel system.
4.
Dirty air cleaner.
5.
Connect and tighten spark plug boot.
1.
Clean fuel line; fill tank with clean, fresh
2.
gasoline.
Clear vent.
3.
Drain fuel tank. Refill with fresh fuel.
4.
Refer to engine manual.
5.
Engine overheats
Engine oil level low.
1.
Air flow restricted.
2.
Fill crankcase with proper oil.
1.
Clean area around and on top of engine.
2.
Occasional skips
(hesitates) at
high speed
Spark plug gap too close.
1.
Adjust gap to .030”.
1.
Idles poorly
Spark plug fouled, faulty, or gap too wide.
1.
Dirty air cleaner.
2.
Reset gap to .030” or replace spark plug.
1.
Refer to engine manual.
2.
Excessive Vibration
Cutting blade loose or unbalanced.
1.
Bent cutting blade.
2.
Tighten blade and adapter. Balance blade.
1.
See an authorized service dealer.
2.
Mower will not
mulch grass
Wet grass.
1.
Excessively high grass.
2.
Dull blade.
3.
Do not mow when grass is wet; wait until
1.
later to cut.
Mow once at a high cutting height, then
2.
mow again at desired height or make a
narrower cutting path.
Sharpen or replace blade.
3.
Uneven cut
Wheels not positioned correctly.
1.
Dull blade.
2.
Place all four wheels in same height position
1.
(if equipped with individual height adjusters).
Sharpen or replace blade.
2.
Mower will not self propel
Debris clogging drive operation.
1.
Belt not installed properly.
2.
Damaged or worn belt.
3.
Stop engine, disconnect spark plug boot,
1.
and clean out debris.
Have belt checked for proper pulley
2.
installation and movement.
Have belt inspected and replaced.
3.
