TROUBLESHOOTING

Problem

 

Cause

 

 

 

 

Engine will not start

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

 

• Clogged fuel filter or fuel line

 

 

 

 

Starter does not turn the engine over

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

 

 

 

 

Enginge runs rough

Faulty carburetor

 

• Choke control used with warm engine

 

Defective valves

 

• Defective piston, cylinder, piston ring, or

 

 

cylinder head seal

 

 

 

 

• Cylinder head bolts are loose

 

• Clogged fuel filter or jet

 

• Clogged ventilation valve on fuel cap

 

• Fuel tank nearly empty

 

Fouled spark plug

 

• Spark plug is loose

 

Defective ignition cable

 

 

 

 

• Defective spark plug electrode

 

• Defective spark plug connection

 

• Rich fuel mixture or fuel-air mixture

 

Wrong fuel type

 

Water in fuel

 

Clogged air filter

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Husqvarna 966582201, 966809001, RZ4219 BF warranty Troubleshooting, Problem Cause