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Troubleshooting
Problem
Engine fails to start
Cause
PTO/Blade engaged.
Engine runs erratic
Engine overheats
2. Spark plug wire disconnected.
3. Fuel tank empty, or stale fuel.
4. Choke not activated.
S. Faulty spark plug.
6. Blocked fuel line.
7. Engine flooded.
8. Parking brake not engaged
Remedy
1. Place knob (or lever)in
disengaged
(OFF)
position.
2. Connect wire to spark plug.
3. Fill tank with clean, fresh (less than 30 days
old) gas.
g. Throttle
control lever not in correct starting
position.
1. Unit running
with CHOKE activated.
4. Place the throttle
control in CHOKE position.
5. Clean, adjust gap or replace plug.
6. Clean fuel line and replace fuel filter.
7. Crank engine with throttle
in FAST position.
8. Engage parking brake.
Engine hesitates at high
RPM
Engine Idles rough
Excessive vibration
Mower will not mulch grass
Uneven cut
2. Spark plug wires loose.
3. Blocked fuel line or stale fuel.
4. Ventin
gas cap plugged.
5. Water or dtrt in fuel system.
6. Dirty air cleaner.
1. Engine oil level low.
2. Air flow restricted.
1. Spark plug gap too close.
1. Spark plug fouled, faulty or gap too wide.
2. Dirty air cleaner.
1. Cutting
blade loose or unbalanced.
2. Damaged
or bent cutting
blade.
1. Engine speed too low.
2. Wet grass.
3. Excessively high grass.
4. Dull blade.
1. Deck not leveled properly.
2. Dull blade.
3. Uneven tire pressure.
9.
Place throttle
lever to FAST position.
1. Move the throttle
contol out of the CHOKE
position.
2. Connect and tighten
spark plug wire.
3. Clean fuel line; fill tank with clean, fresh
gasoline and replace fuel filter, is so equipped.
4. Clear vent or replace cap if damaged.
5. Dram fuel tank. Refill with clean, fresh
gasoline.
6. Replace air cleaner paper element
or clean
foam precleaner, is so equipped.
1. Fill crankcase with proper amount
and
weight
of oil.
2. Clean grass clippings
and debris from around
the engine's cooling
fins and blower
housing.
1. Remove spark plug and resetthe
gap.
1. Replace spark plug. Set plug gap.
2. Replace air cleaner element
and/or clean
pre-cleaner,
if so equipped.
1. Tighten
blade and spindle.
Balance blade.
2. Replace blade.
1. Place throttle
in FAST (rabbit) position.
2. Do not mulch when grass is wet.
3. Mowonceata
high cutting
height, then
mow again at desired height or make a
narrower
cutting
swath.
4. Sharpen or replace blade.
1. Perform side-to-side
deck adjustment.
2. Sharpen or replace blade.
3. Checktire
pressure in all four tires.
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