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Troubleshooting
Problem
Engine Fails to start
Engine runs erratic
].
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 w_re 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.
7. Engine flooded.
8. Fuel valve (if equipped)
closed.
5. Clean, adjustgap,
or replace.
6. Clean fuel line.
7. Waita few minutes to restart, but do not
prime.
B. Open fuel valve. See engine manual.
9.
1.
2.
Engine not choked
(if equipped
with choke).
9.
Spark plug boot loose.
1.
Blocked fuel line or stale fuel.
2.
Choke engine. See engine manual.
Connect and tighten
spark plug boot.
Clean fuel line; fill tank with clean, fresh
gasoline.
Clear vent.
Drain fuel tank. Refill with fresh fuel.
Refer to engine manual.
Push CHOKE knob in.
Engine overheats
Fill crankcase with proper oil.
Clean area around and on top of engine.
Occasional
skips
Adjust gap to .030".
(hesitates) at
high speed
Idles poorly
Excesstve Vibration
Mower wdl not
mulch grass
3. Ventin
gas cap plugged.
3.
4. Water or dirt in fuel system.
4.
5. Dirty air cleaner.
5.
6. Unit running
with CHOKE (if equipped)
6.
applied.
1. Engine oil level low.
1.
2. Air flow restricted.
2.
1. Spark plug gap too close.
1.
1. Spark plug fouled, faulty, or gap too wide.
1.
2. Dirty air cleaner.
2.
1. Cutting
blade loose or unbalanced.
1.
2. Bent cutting
blade.
2.
1. Wet grass.
1.
2. Excessively high grass.
2.
3. Dull blade.
3.
1. Wheels not positioned
correctly.
1.
2. Dull blade.
2.
Uneven cut
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 at a high cutting
height, then
mow again at desired height or make a
narrower
cutting
path.
Sharpen or replace blade.
Place all four wheels in same height position
(if equipped
with individual
height adjusters).
Sharpen or replace blade.
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