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TROUBLESHOOTING
97
Faults
Possible cause
Action
Engine overheats
Insufficient airflow
–
Switch off engine when stationary.
Radiator fins very dirty
–
Clean radiator fins.
Foam formation in cooling system
–
Drain the coolant.
–
Refill the coolant.
Bent radiator hose
–
Change the radiator hose.
x
Thermostat defective
–
Check the thermostat.
x
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.
x
FI
warning lamp (
MIL
) lights
up/flashes
Defect in fuel injection system
–
Stop the motorcycle and identify the faulty part
using the blink code.
Info
See blink code
–
Check the cabling for damage and the electri-
cal plug-in connections for corrosion and dam-
age.
–
Read out the fault memory using the KTM diag-
nostics tool.
x
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 viscosity)
–
Change the engine oil and oil filter, clean the
oil screen.
x
Piston and cylinder worn
–
Measure the piston/cylinder mounting clear-
ance.
x
Battery discharged
Battery is not being charged by alter-
nator
–
Check the charging voltage.
x
–
Check the stator winding of the alternator.
x
Undesired power consumer
–
Check the closed current.
x
Speedometer values deleted (time,
stop watch, lap times)
The battery in the speedometer is
discharged
–
Change the speedometer battery. (
The high beam, low beam, parking
light, tail light, and license plate
lamp are not working
Fuse
3
blown
–
Change the fuses of individual power
consumers. (
The speedometer, horn, brake
light, turn signal, and radiator fan
(optional) are not working
Fuse
4
blown
–
Change the fuses of individual power
consumers. (