21 TROUBLESHOOTING 103
Faults Possible cause Action
The engine cannot be cranked (elec-
tric starter)
Operating error – Carry out the start procedure. ( p. 35)
Battery is discharged –
Charge the battery. x ( p. 84)
–
Check the charging voltage. x
–
Check the closed current. x
–
Check the stator winding of the alternator. x
Main fuse blown – Change the main fuse. ( p. 85)
Fuse 3 blown – Change the fuses of individual power
consumers.
Starter relay defective –
Check the starter relay. x
Starter motor defective –
Check the starter motor. x
Engine turns but does not start Operating error – Carry out the start procedure. ( p. 35)
Coupling of fuel hose connection not
joined together
– Join the fuel hose connection.
Fuse 1 blown – Change the fuses of individual power
consumers.
Fuse 2 blown – Change the fuses of individual power
consumers.
Idle speed is not set correctly –
Adjust the idle speed. x ( p. 95)
Spark plug oily or wet – Clean and dry the spark plug or replace if nec-
essary.
Electrode distance (plug gap) of spark
plug too wide
– Adjust the plug gap.
Guideline
Spark plug electrode gap
0.8 mm (0.031 in)
Ignition system defective –
Check the ignition system. x
Short-circuit cable in wiring harness
frayed, kill switch or emergency OFF
switch defective
– Check the wiring harness. (visual check)
– Check the electrical system.
Defect in fuel injection system – Read out the fault memory using the KTM diag-
nostics tool. x
Engine does not speed up Defect in fuel injection system – Read out the fault memory using the KTM diag-
nostics tool. x
Ignition system defective –
Ignition coil - check the secondary winding. x
–
Check the spark plug connector. x
–
Check the stator winding of the alternator. x
Engine has too little power Air filter heavily contaminated –
Clean the air filter and air filter box. x
( p. 58)
Fuel filter is very dirty –
Change the fuel filter. x
Fuel screen is very dirty –
Change the fuel screen. x ( p. 96)
Defect in fuel injection system – Read out the fault memory using the KTM diag-
nostics tool. x
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer
– Check exhaust system for damage.
– Change the glass fiber yarn filling of the main
silencer. x ( p. 59)
Valve clearance too little –
Adjust the valve clearance. x
Ignition system defective –
Ignition coil - check the secondary winding. x
–
Check the spark plug connector. x
–
Check the stator winding of the alternator. x
Engine dies during the trip Lack of fuel – Refuel. ( p. 38)
Fuse 1 blown – Change the fuses of individual power
consumers.
Fuse 2 blown – Change the fuses of individual power
consumers.
Fuse 3 blown – Change the fuses of individual power
consumers.
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