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TROUBLESHOOTING
Problem Cause
Engine will not start • Blade switch is engaged.
• Steering controls are not locked in the neutral position
• Park brake is not activated
• Battery is dead
• Contamination in the carburetor or fuel line.
• Fuel supply is closed
• Clogged fuel filter or fuel line
• Ignition system faulty
Starter does not turn the engine over • Battery is dead
• Poor contact of the battery terminal cable connections
• Blown fuse
• Fault in the starter safety circuit. See Safety System in the
Maintenance section
Engine runs rough • Faulty carburetor
• Clogged fuel filter or jet
• Clogged ventilation valve on the fuel cap
• Throttle lever in the Cold Weather starting position
• Fuel tank nearly empty
• Fouled spark plugs
• Rich fuel mixture or fuel-air mixture.
• Wrong fuel type
• Water in fuel
• Clogged air filter
Engine seems weak • Clogged air filter
• Fouled spark plugs
• Carburetor incorrectly adjusted
• Air trapped in hydraulic system
Machine vibrates • Blades are loose
• Blades are incorrectly balanced
• Engine is loose