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Troubleshooting
Problem
Engine fails to start
Engine runs erratic
Engine overheats
Engine hesitates at high
RPM
Engine Idles rough
Excessive vibration
Mower will not mulch grass
Uneven cut
Cause
1. PTO/Blade Engage lever engaged.
2. Parking brake not engaged.
3. Spark plug wire disconnected.
4. Throttle/Choke control lever not in correct
starting position.
5. Choke not activated
6. Fuel tank empty, or stale fuel.
7. Blocked fuel line.
8. Faulty spark plug.
9. Engine flooded.
1. Tractor running with Choke activated.
2. Spark plug wires loose.
3. Blocked fuel line or stale fuel.
4. Vent in gas cap plugged.
5. Water or dirt 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.
Remedy
1. Place lever in disengaged (OFF) position.
2. Engage parking brake.
3. Connect wire to spark plug.
4. Place Throttle/Choke control lever to FAST
position.
5. Push the Throttle/Choke control lever into
the Choke position.
6. Fill tank with clean, fresh (less than 30 days
old) gas.
7. Clean fuel line and replace fuel filter.
8. Clean, adjust gap or replace plug.
9. Crank engine with Throttle/Choke control
lever in FAST position.
1. Move the Throttle/Choke control lever out of
the choke position.
2. Connect and tighten spark plug wires.
3. Clean fuel line; fill tank with clean, fresh
gasoline and replace fuel filter.
4. Clear vent or replace cap if damaged.
5. Drain fuel tank. Refill with clean, fresh
gasoline.
6. Replace air cleaner paper element or clean
foam precleaner.
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 reset the gap.
1. Replace spark plug. Set plug gap.
2. Replace air cleaner element and/or clean
pre-cleaner.
1. Tighten blade and spindle.
2. Replace blade.
1. Place Throttle/Choke Control in FAST (rabbit)
position.
2. Do not mulch when grass is wet.
3. Mow once at a 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. Check tire pressure in all four tires.
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