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Troubleshooting
Problem
Engine Fails to start
Engine runs erratic
Cause
1. Blade control disengaged.
2. Spark plug boot disconnected.
3. Fuel tank empty or stale fuel.
4. Engine not primed (if equipped with primer).
5.
6.
7.
1,
2.
1,
2.
3.
4.
3. Ventin gas cap plugged.
4. Water or dirt in fuel system.
Faulty spark plug. S.
Blocked fuel line. 6.
Engine flooded. 7.
Spark plug boot loose. 1.
Blocked fuel line or stale fuel. 2.
3.
4.
Remedy
Engage blade control.
Connect wire to spark boot.
Fill tank with clean, fresh gasoline.
Prime engine as instructed in the Operation
section.
Clean, adjust gap, or replace.
Clean fuel line.
Wait a few minutes to restart, but do not
prime.
Connect and tighten spark plug boot.
Clean fuel line; fill tank with clean, fresh
gasoline.
Clear vent.
Drain fuel tank. Refill with fresh fuel.
5. Dirtyaircleaner. 5. Refertoenginemanual.
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.
Occasional skips 1. Spark plug gap too close. 1. Adjust gap to .030".
(hesitates) at
high speed
Idles poorly 1. Spark plug fouled, faulty, or gap too wide. 1.
2. Dirty air cleaner. 2.
Excessive Vibration 1. Cutting blade loose or unbalanced. 1.
2. Bent cutting blade. 2.
Mower will not 1. Wet grass. 1.
mulch grass
Uneven cut
Mower will not self propel
2. Excessively high grass.
3. Dull blade.
1. Wheels not positioned correctly.
2. Dull blade.
1. Belt not installed properly.
2. Debris clogging drive operation.
3. Damaged orworn belt.
Reset gap to .030" or replace spark plug.
Refer to engine manual.
Tighten blade and adapter. Balance blade.
See an authorized service dealer.
Do not mow when grass is wet; wait until
later to cut.
2. Mow once at a high cutting height, then
mow again at desired height or make a
narrower cutting path.
3. Sharpen or replace blade.
1. Place all four wheels in same height posttion
(if equipped with individual height adjusters).
2. Sharpen or replace blade.
1. Check belt for proper pulley installation and
movement.
2. Stop engine, disconnect spark plug boot,
and clean out debris.
3. Inspectand replace belt.
17
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