Problem
Engine will not start
Starter does not turn the engine over
Engine runs rough
Engine seems weak
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Cause
•
Blade switch is engaged
•
Steering controls are not locked in the neutral
position
•
Parking brake is not activated
•
Battery is dead
•
Contamination in the carburetor or fuel line
•
Fuel supply is closed or the tap for the fuel tank is
in the wrong position
•
Clogged fuel filter or fuel line
•
Faulty ignition system
•
Dead battery
•
Poor contacts on the battery terminal cable
connections
•
Fuse blown
•
Ignition system faulty
•
Fault in the starter safety circuit See Safety
System in the Maintenance section
•
Faulty carburetor
•
Choke control is pulled out with warm engine
•
Clogged fuel filter or jet
•
Clogged ventilation valve on the fuel cap
•
Fuel tank nearly empty
•
Fouled spark plug
•
Spark plug is loose
•
Rich fuel mixture or fuel-air mixture
•
Wrong fuel type
•
Water in the fuel
•
Clogged air filter
•
Clogged air filter
•
Fouled spark plugs
•
Carburetor incorrectly adjusted