Husqvarna ST 427T Owner Manual - Page 26
Troubleshooting
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Troubleshooting Problem The product does not start Possible cause The safety ignition key is not inserted. The product is out of fuel. The ON/OFF key is OFF. The engine is not primed. The engine is flooded. Solution Insert the safety ignition key. Fill the fuel tank with fresh, clean gasoline. Move the ON/OFF key to ON position. Prime the engine. Wait a few minutes before restarting, DO NOT prime. Restart the engine while full throttle and the choke in OFF (CLOSE) position. The spark plug cable is not connected. Connect the cable to the spark plug. The spark plug is bad. Replace the spark plug. There is water in the fuel or the fuel is too old. Empty the fuel tank and carburetor. Fill the fuel tank with fresh, clean gasoline. There is vapor locked in the fuel line. Make sure that all the fuel line is below the outlet of the fuel tank. The fuel line should run continuously down from fuel tank to carburetor. Other causes. Inspect the starting procedures carefully in this manual. The fuel switch (if equipped) is in CLOSE (OFF) position. Turn the fuel switch to OPEN (ON) position. The throttle is in STOP position. Move the throttle to FAST position. The starting battery is not charged. Charge the starting battery. The starting battery needs to be replaced. Replace the starting battery. The engine control unit does not receive power. Inspect the ECU fuse and wiring. The starter solenoid does not engage. Inspect the starter fuse and wiring. The fuel injector does not trigger. (For ST 424T/427T/430T only) Contact an authorized service center. The fuel pump does not receive power. (For Contact an authorized service cen- ST 424T/427T/430T only) ter. 26 876 - 011 - 11.05.2020