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Faults
The engine has no idle speed
The engine dies during the trip
Engine overheats
Engine has too little power
Water in the gear oil
White smoke emission (steam
in exhaust gas)
Possible cause
Ignition system defective
Idle speed is not set correctly
Lack of fuel
The engine takes in false air
The connector or ignition coil is
loose or oxidized
Too little coolant in cooling sys-
tem
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
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 leaky,
deformed or too little glass
fiber yarn filling in main
silencer
Ignition system defective
Diaphragm or reed valve hous-
ing damaged
Damaged radial shaft seal ring
or water pump
Damaged cylinder head or
cylinder head gasket
TROUBLESHOOTING 21
Action
–
Check the ignition coil.
–
Check the spark plug connector.
–
Adjust the idle speed.
–
Refuel. (
p. 31)
–
Check that the intake flange is firmly
seated.
–
Clean the connector and treat it with
contact spray.
–
Check the cooling system for leakage.
–
Check the coolant level. (
–
Switch off engine when stationary.
–
Clean the radiator fins.
–
Drain the coolant.
(
–
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)
–
Clean the air filter and air filter box.
(
p. 66)
–
Change the fuel filter.
–
Change the fuel screen.
–
Check wiring for damage and electrical
plug-in connectors for corrosion and
damage.
–
Read out the fault memory using the
KTM diagnostics tool.
–
Check the fuel tank breather.
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling in
the main silencer.
(
–
Check the ignition coil.
–
Check the spark plug connector.
–
Check the diaphragm and reed valve
housing.
–
Check the radial shaft seal ring and the
water pump.
–
Check the cylinder head and cylinder
head gasket.
(
p. 115)
p. 107)
p. 107)
p. 108)
(
p. 118)
p. 69)
127
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