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TROUBLE SHOOTING GUIDE
Trouble Shooting Guide
Problem Cause
The engine will not start. • The control for engaging the mower deck is
in engaged position.
• The motion control levers are not locked in the
neutral position.
• Spark plug wires off.
• The battery is dead.
•Fuseblown.
• Contamination in the carburetor or fuel line.
• The shut-off valve for the fuel tank
is in the wrong position.
• Clogged fuel filter or fuel line.
• Fuel tank empty.
The starter does not turn the engine over. • Dead battery.
• Poor contacts on the battery terminal
cable connections.
•Fuseblown.
• Ignition system faulty.
• Fault in the starter safety circuit.
See Checking the Safety System on page 39.
The engine runs unevenly. • Faulty carburetor.
• The choke control is pulled out with a warm engine.
• Defective valves.
• Defective piston, cylinder, piston ring, or
cylinder head seal.
• The cylinder head bolts are loose.
• Clogged fuel filter or jet.
• Clogged ventilation on the fuel cap.
• Fuel tank near empty.
• Defective spark plugs.
• The spark plugs are loose.
• Defective ignition cable.
• Defective spark plug electrode.
• Defective spark plug connection.