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Troubleshooting
Problem
Engine Fails to start
Engine runs erratic
1.
2.
3.
4.
Cause
Blade control disengaged.
1.
Spark plug boot disconnected.
2.
Fuel tank empty or stale fuel.
3.
Engine not primed (if equipped
with primer).
4.
Remedy
Engage blade control.
Connect wire to spark boot.
Fill tank with clean, fresh gasoline.
Prime engine as instructed
in the Operation
section.
5. Faulty spark plug.
6. Blocked fuel line.
Z
Engine flooded.
5. Clean, adjust gap, or replace.
6. Clean fuel line.
Z Waita few mmutes to restart, butdo not
prime.
Fuel valve (if equipped)
closed.
8.
Engine not choked
(if equipped
with choke).
9.
Burnt fuse. (Electric Start only)
Spark plug boot loose.
Blocked fuel line or stale fuel.
B,
9.
10.
1.
2.
3.
4.
5.
6.
1.
2.
1.
1.
2.
1.
2.
Vent in gas cap plugged.
Water or dirt in fuel system.
Dirty air cleaner.
Unit running
with CHOKE (if equipped)
applied.
Engine oil level low.
Air flow restricted.
Spark plug gap too close.
Open fuel valve. See engine manual.
Choke engine. See engine
manual.
10. Replace fuse (see Service Section).
1. Connectand
tighten
spark plug boot.
2. Clean fuel line; fill tank with clean, fresh
gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Refertoengine
manual.
6. Push CHOKE knob in.
Engine overheats
1. Fill crankcase with proper oil.
2. Clean area around and on top of engine.
Occasional
skips
1. Adjust gap to .030".
(hesitates) at
high speed
Idles poorly
Spark plug fouled, faulty, or gap too wide.
1.
Dirty air cleaner.
2.
Excessive Vibration
Cutting
blade loose or unbalanced.
1.
Bent cutting
blade.
2.
Mower will not
mulch grass
1, Wet grass.
1,
2, Excessivelyhigh grass.
2.
3. Dull blade.
3.
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.
Mow once ata high cutting
height, then
mow again at desired height or make a
narrower
cutting
path.
Sharpen or replace blade.
Continued
on next page
19
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