Troubleshooting Schedule - Husqvarna 535FBX Operator's Manual

Troubleshooting schedule

Starting failure
Check
Stop button
Starter pawls
Fuel tank
Carburettor
Sparking (no spark)
Spark plug
Fuel filter
Engine starts but does not stay running.
Check
Fuel tank
Fuel filter
Carburettor
Air filter
32 – English
MAINTENANCE
Possible Cause
Stop position
Binding pawls
Incorrect fuel type
Adjustment of the idle speed
Spark plug contaminated or wet
Spark plug gap incorrect.
Spark plug loose.
Clogged fuel filter
Possible Cause
Incorrect fuel type
Clogged fuel filter
Engine will not idle properly.
Air filter clogged
Action
Set the stop switch to the start
position.
Adjust or replace the pawls.
Clean around the pawls.
Contact a servicing dealer.
Drain it and use correct fuel.
Adjust the idling speed with the T-
screw.
Make sure that the spark plug is dry
and clean.
Clean the spark plug. Check that the
electrode gap is correct. Make sure
that the spark plug is fitted with a
suppressor.
Refer to technical data for correct
electrode gap.
Retighten the spark plug
Replace the fuel filter.
Possible action
Drain it and use correct fuel.
Replace the fuel filter.
Adjust the idling speed with the T-
screw.
Clean the air filter.