Husqvarna 966809001 Lawn Mower User Manual


 
TROUBLESHOOTING
43
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