TROUBLESHOOTING 21
145
Faults
Possible cause
Action
Engine does not speed up
Faulty ignition
–
Ignition coil - check the primary wind-
ing.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
Ambient pressure is incorrectly
stored
–
Program ambient air pressure.
(
Engine has too little power
Air filter very dirty
–
Clean the air filter and air filter box.
(
Fuel filter is very dirty
–
Change the fuel filter.
Fuel screen is very dirty
–
Change the fuel screen.
Malfunction in the electronic
fuel injection
–
Read out the fault memory using the
Husqvarna Motorcycles diagnostics
tool.
Fuel supply interrupted
–
Check the fuel tank breather.
Exhaust system leaks,
deformed or too little glass
fiber yarn filling in the main
silencer
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of
the main silencer.
Faulty ignition
–
Ignition coil - check the primary wind-
ing.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
Diaphragm or reed valve hous-
ing damaged
–
Check the diaphragm and reed valve
housing.
Ambient pressure is incorrectly
stored
–
Program ambient air pressure.
(
The engine dies during the trip
Lack of fuel
–
Refuel. (
The engine takes in false air
–
Check that the intake flange is firmly
seated.
The connector or ignition coil
is loose or oxydized
–
Clean the connector and treat with
contact spray.
Ambient pressure is incorrectly
stored
–
Program ambient air pressure.
(
Engine overheats
Too little coolant in cooling
system
–
Check the cooling system for leakage.
–
Check the coolant level. (
Too little air stream
–
Switch off engine when stationary.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling sys-
tem
–
Drain the coolant.
–
Refill with coolant.
Damaged cylinder head or
cylinder head gasket
–
Check the cylinder head and cylinder
head gasket.
Bent radiator hose
–
Change the radiator hose.
Thermostat defective
–
Check the thermostat.
Guideline
Opening temperature: 70 °C (158 °F)