Husqvarna WH5218 / 966638603 User Manual
tRoUblesHootInG
37
Problem
Cause
engine will not start
• Mower deck control is engaged
• speed control not in the start position
• spark plug wire is off
• Contamination in the carburetor or fuel line
• Fuel shutoff valve is closed
• Clogged fuel filter or fuel line
• empty fuel tank
• Faulty ignition system
• speed control not in the start position
• spark plug wire is off
• Contamination in the carburetor or fuel line
• Fuel shutoff valve is closed
• Clogged fuel filter or fuel line
• empty fuel tank
• Faulty ignition system
engine runs rough
• Faulty carburetor
• Choke control is pulled out with a warm engine
• Clogged fuel filter or jet
• Clogged ventilation valve on the fuel cap
• Fuel tank nearly empty
• Fouled spark plugs
• 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 the fuel
• Clogged air filter
• Choke control is pulled out with a warm engine
• Clogged fuel filter or jet
• Clogged ventilation valve on the fuel cap
• Fuel tank nearly empty
• Fouled spark plugs
• 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 the fuel
• Clogged air filter
engine seems weak
• Clogged air filter
• Fouled spark plug
• Carburetor incorrectly adjusted
• Fouled spark plug
• Carburetor incorrectly adjusted
Machine vibrates
• blades are loose
• blades are incorrectly balanced
• engine is loose
• blades are incorrectly balanced
• engine is loose