Murray 425307x51A Manuel De L'opérateur page 31

Troubleshooting Chart
Problem
The engine will not start.
The engine will not turn over.
The engine is difficult to start.
The engine does not run smooth or has a
loss of power.
The engine does not run smooth at fast speed. 1 Replace the spark plug.
The engine stops when the blades are
engaged.
On slopes, the engine stops.
1. Follow the steps, "Start the Engine" in this book.
2. Electric-Start Models: Clean the battery terminals. Tighten the
cables.
3. Check for a loose wire. Tighten the limit switches. (See the wiring
diagram.)
4. Drain the fuel tank. Clean the fuel line. Replace the fuel filter.
5. 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.
6. Replace the spark plug.
7. Adjust the carburetor.
1. Follow the steps, "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. Recoil-Start Models:
replace the module.
1. Adjust the carburetor.
2. Replace the spark plug.
3. Replace the fuel filter.
1. Check the oil.
2. Clean the air filter.
3. Clean the air screen.
4. Replace the spark plug.
5. The engine is working too hard. Use a lower gear.
6. Adjust the carburetor.
7. Replace the fuel filter.
2. Adjust the throttle control.
3. Clean the air filter.
4. Replace the fuel filter.
1. Check the wiring harness for damage or a loose connection. Repair
the damaged wire.
2. Grass bag must be installed (applies only to model with rear
discharge grass bag).
1. Mow up and down slopes. Never mow across a slope.
Solution
en
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