Husqvarna MZ6128ZT Owners Manual - Page 48

TROUBLESHOOTING GUIDE, Problem, Cause - air filter

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Problem Engine will not start. troubleshooting guide 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. • Clogged fuel filter or fuel line. • Faulty ignition system. Starter does not turn the engine over. Engine runs rough. • 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. • 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. Engine seems weak. • Clogged air filter. • Fouled spark plugs. • Carburetor incorrectly adjusted. 48

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48
TROUBlEshOOTING GUIDE
Problem
Cause
Engine will not start.
•
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.
•
Clogged fuel filter or fuel line.
•
Faulty ignition system.
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
Engine runs rough.
•
Faulty carburetor.
•
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.
Engine seems weak.
•
Clogged air filter.
•
Fouled spark plugs.
•
Carburetor incorrectly adjusted.