Problem
Engine will not start
Starter does not turn the engine over
Engine runs rough
TROUBLESHOOTING
Cause
•
Blade lever is engaged
•
Steering controls are not locked in neutral position
•
Driver is not sitting in driver's seat
•
Parking brake is not activated
•
Battery is dead
•
Contamination in carburetor or fuel line
•
Fuel supply is closed or tap for fuel tank is in wrong
position
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Clogged fuel filter or fuel line
•
Dead battery
•
Poor contacts on the battery terminal cable connections
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Fuse blown
•
Ignition system faulty
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Fault in the starter safety circuit, see Safety System in the
Maintenance section
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Faulty carburetor
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Choke control used with warm engine
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Defective valves
•
Defective piston, cylinder, piston ring, or
cylinder head seal
•
Cylinder head bolts are loose
•
Clogged fuel filter or jet
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Clogged ventilation valve on fuel cap
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Fuel tank nearly empty
•
Fouled spark plug
•
Spark plug is loose
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Defective ignition cable
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Defective spark plug electrode
•
Defective spark plug connection
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Rich fuel mixture or fuel-air mixture
•
Wrong fuel type
•
Water in fuel
•
Clogged air filter
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