Husqvarna FC 450 2021 Owner's Manual page 146

20 TROUBLESHOOTING
Faults
Engine overheats
Malfunction indicator lamp
lights up or flashes
High oil consumption
12 V battery discharged
144
Possible cause
Bent radiator hose
Malfunction in the electronic
fuel injection
Engine vent hose bent
Engine oil level too high
Engine oil too thin (low viscos-
ity)
Piston or cylinder worn
12 V battery is not charging
Unwanted electrical power
consumers
Action
–
Change the radiator hose.
–
Check the wiring for damage and the
electrical plug-in connections for cor-
rosion and damage.
–
Read out the fault memory using the
Husqvarna Motorcycles diagnostics
tool.
–
Route the vent hose without bends or
change it if necessary.
–
Check the engine oil level. (
–
Change the engine oil and the oil filter,
clean the oil screens. (
–
Measure the piston/cylinder mounting
clearance.
–
Check the charging voltage.
–
Check the stator winding of the alter-
nator.
–
Check the open-circuit current.
p. 135)
p. 135)