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21 TROUBLESHOOTING
147
Faults
Possible cause
Action
Engine has too little power
Exhaust system leaky,
deformed or too little glass
fiber yarn filling in main
silencer
–
Check exhaust system for damage.
–
Change glass fiber yarn filling in the
main silencer.
Valve clearance too little
–
Adjust the valve clearance.
Ignition system defective
–
Ignition coil - check the secondary
winding.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
The engine dies during the trip
Lack of fuel
–
Refuel. (
Fuse
1
blown
–
Change the fuses of individual power
consumers. (
Fuse
4
blown
–
Change the fuses of individual power
consumers. (
Engine overheats
Coolant level low in cooling sys-
tem
–
Check the cooling system for leaks.
–
Check the coolant level. (
Insufficient airflow
–
Switch off engine when stationary.
Radiator fins very dirty
–
Clean radiator fins.
Foam formation in cooling sys-
tem
–
Drain the coolant.
–
Refill the coolant.
Bent radiator hose
–
Change the radiator hose.
Thermostat defective
–
Check the thermostat.
Guideline
Opening temperature: 70 °C (158 °F)
Defect in radiator fan system
(EXC
‑
F Six Days)
–
Check the radiator fan fuse.
–
Check fuse
4
.
–
Check the radiator fan.
Malfunction indicator lamp
lights up or flashes
Defect in the fuel injection sys-
tem
–
Check the cabling for damage and the
electrical plug-in connections for corro-
sion and damage.
–
Read out the fault memory using the
KTM diagnostics tool.
High oil consumption
Engine vent hose bent
–
Route the vent hose without bends or
replace it if necessary.
Engine oil level too high
–
Check the engine oil level. (
Engine oil too thin (low viscos-
ity)
–
Change the engine oil and oil filter,
clean the oil screen.
Piston and cylinder worn
–
Measure the piston/cylinder mounting
clearance.
Battery discharged
Battery is not being charged by
alternator
–
Check the charging voltage.
–
Check the stator winding of the alter-
nator.
Undesired power consumer
–
Check the open-circuit current.
Values in combination
instrument deleted (time, stop
watch, lap times)
The combination instrument
battery is empty
–
Change the combination instrument.
(