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21 TROUBLESHOOTING
Faults
Engine does not speed up
Engine has too little power
The engine dies during the trip
Engine overheats
White smoke emission (steam
in exhaust gas)
Gear oil exits at the vent hose
Water in the gear oil
142
Possible cause
Ambient pressure is incorrectly
stored
Air filter very dirty
Fuel filter is very dirty
Fuel screen is very dirty
Malfunction in the electronic
fuel injection
Fuel supply interrupted
Exhaust system leaks,
deformed or too little glass
fiber yarn filling in the main
silencer
Faulty ignition
Diaphragm or reed valve hous-
ing damaged
Ambient pressure is incorrectly
stored
Lack of fuel
The engine takes in false air
The connector or ignition coil
is loose or oxydized
Ambient pressure is incorrectly
stored
Too little coolant in cooling
system
Too little air stream
Radiator fins very dirty
Foam formation in cooling sys-
tem
Damaged cylinder head or
cylinder head gasket
Bent radiator hose
Thermostat defective
Damaged cylinder head or
cylinder head gasket
Too much gear oil added
Damaged radial shaft seal ring
or water pump
Action
–
Program ambient air pressure.
(
p. 126)
–
Clean the air filter and air filter box.
(
p. 69)
–
Change the fuel filter.
–
Change the fuel screen.
–
Read out the fault memory using the
Husqvarna Motorcycles diagnostics
tool.
–
Check the fuel tank breather.
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of
the main silencer.
(
p. 71)
–
Ignition coil - check the primary wind-
ing.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
–
Check the diaphragm and reed valve
housing.
–
Program ambient air pressure.
(
p. 126)
–
Refuel. (
p. 41)
–
Check that the intake flange is firmly
seated.
–
Clean the connector and treat with
contact spray.
–
Program ambient air pressure.
(
p. 126)
–
Check the cooling system for leakage.
–
Check the coolant level. (
–
Switch off engine when stationary.
–
Clean the radiator fins.
–
Drain the coolant.
(
p. 118)
–
Refill with coolant.
(
–
Check the cylinder head and cylinder
head gasket.
–
Change the radiator hose.
–
Check the thermostat.
Guideline
Opening temperature: 70 °C (158 °F)
–
Check the cylinder head and cylinder
head gasket.
–
Check the gear oil level. (
–
Check the radial shaft seal ring and
the water pump.
(
p. 128)
p. 118)
p. 119)
p. 134)
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