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Troubleshooting
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Troubleshooting Chart
Problem Correction
The engine will not start.
1. Follow the steps, “How To Start The Engine” in this book.
2. Electric-Start Models: Clean the battery terminals. Tighten the cables.
3. Drain the fuel tank. Clean the fuel line. Replace the fuel filter.
4. Remove the spark plug(s). Move the throttle to the SLOW position. Turn the ignition key
to the ON position. Try to start the engine several times. Install the spark plug.
5. Replace the spark plug.
The engine will not turn over.
1. Follow the steps, “How To Start The Engine” in this book.
2. Electric-Start Models: Charge the battery.
3. Replace the fuse.
4. Check the wiring harness for damage or a loose connection. Repair the damaged wire.
5. Electric-Start Models: Replace the solenoid.
The engine is difficult to start.
1. Replace the spark plug.
2. Replace the fuel filter.
The engine does not run
smooth or has a loss of
power.
1. Check the oil.
2. Clean the air filter.
3. Clean the air screen.
4. Replace the spark plug.
5. Replace the fuel filter.
The engine does not run
smooth at fast speed.
1. Replace the spark plug.
2. Adjust the throttle control.
3. Clean the air filter.
4. Replace the fuel filter.
The engine stops when the
blades are engaged.
1. To activate the seat sensor, always sit in the middle of the seat.
2. Check the wiring harness for damage or a loose connection. Repair the damaged wire.
On slopes, the engine stops.
1. Mow up and down slopes. Never mow across a slope.
2. To activate the seat sensor, always sit in the middle of the seat.
The engine will not idle.
1. Replace the spark plug.
2. Clean the air filter.
3. Adjust the throttle control.
4. Drain the fuel tank. Clean the fuel line. Replace the fuel filter.
A hot engine causes a
decrease in power.
1. Clean the air screen.
2. Check the oil.
3. Replace the fuel filter.
Excessive vibration.
1. Replace the blade.
2. Check for loose engine bolts.
3. Decrease the air pressure in the tires.
4. Check for a damaged belt or damaged pulley. Replace the damaged parts.