Husqvarna 967277601 warranty Troubleshooting, Problem, Cause, Maintenance section

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

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