Troubleshooting Guide - Husqvarna 966061101 Operator's Manual

Problem
Engine will not start.
Starter does not turn the engine over.
Engine runs rough.
Engine seems weak.
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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 or the tap for the fuel tank is
in the wrong position.
• Clogged fuel filter or fuel line.
• Faulty ignition system.
• Lock-off not grounded or is faulty (propane)
• Regulator is faulty (propane)
• Tank fuel lines not tightened securely (propane)
• 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.
• Choke control is pulled out with warm engine.
• 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 (gasoline).
• Wrong fuel type (gasoline).
• Water in the fuel (gasoline).
• Clogged air filter.
• Clogged air filter.
• Fouled spark plugs.
• Carburetor incorrectly adjusted.