tRoUBLesHootInG
43
Problem
Cause
The engine will not start.
Blade lever is engaged.
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Steering controls are not locked in neutral
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position.
Driver is not sitting in driver’s seat.
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Parking brake is not activated.
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Battery is dead.
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Contamination in carburetor or fuel line.
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Fuel supply is closed or tap for fuel tank is in
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wrong position.
Clogged fuel filter or fuel line.
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The starter does not turn the engine over.
Dead battery.
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Poor contacts on the battery terminal cable
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connections.
Fuse blown.
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Ignition system faulty.
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Fault in the starter safety circuit. See Checking the
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Safety System in the
Maintenance
section.
The engine runs rough.
Faulty carburetor.
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Choke control used with warm engine.
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Defective valves.
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Defective piston, cylinder, piston ring, or
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cylinder head seal.
Cylinder head bolts are loose.
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Clogged fuel filter or jet.
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Clogged ventilation valve on fuel cap.
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Fuel tank nearly empty.
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Fouled spark plug.
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Spark plug is loose.
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Defective ignition cable.
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Defective spark plug electrode.
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Defective spark plug connection.
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Rich fuel mixture or fuel-air mixture.
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Wrong fuel type.
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Water in fuel.
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Clogged air filter.
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