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21
TROUBLESHOOTING
Faults
The engine does not turn when the
electric starter button is pressed
The engine turns but does not start
Engine does not speed up
Engine has too little power
The engine dies during the trip
Engine overheats
Possible cause
Operating error
The battery is discharged
Main fuse blown
Starter relay defective
Starter motor defective
Operating error
The coupling of the fuel hose connec-
tion is not connected
Fuse 8 is blown
Idle speed is not set correctly
Spark plug oily or wet
Electrode distance (plug gap) of spark
plug too wide
Faulty ignition system
Short circuit cable in wiring harness
frayed, kill switch defective
Defect in the fuel injection system
Defect in the fuel injection system
Faulty ignition system
Air filter is very dirty
Fuel filter is very dirty
Defect in the fuel injection system
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer
Valve clearance too little
Faulty ignition system
Lack of fuel
Too little coolant in cooling system
Too little air stream
Radiator fins very dirty
Foam formation in cooling system
Bent radiator hose
Thermostat defective
Defect in radiator fan system
Action
–
Carry out the start procedure. (
–
Recharge the battery.
–
Check the charging voltage.
–
Check the open-circuit current.
–
Check the stator winding of the alternator.
–
Change the main fuse. (
–
Check the starter relay.
–
Check the starter motor.
–
Carry out the start procedure. (
–
Join the fuel hose connection.
–
Change the fuses of individual power
consumers. (
p. 86)
–
Adjust the idle speed.
–
Clean and dry the spark plug, or change it if
necessary.
–
Adjust the plug gap.
Guideline
Spark plug electrode gap
0.9 mm (0.035 in)
–
Check the ignition system.
–
Check the wiring harness. (visual check)
–
Check the electrical system.
–
Read out the fault memory using the KTM diag-
nostics tool.
–
Read out the fault memory using the KTM diag-
nostics tool.
–
Ignition coil - check the secondary winding.
–
Check the spark plug connector.
–
Check the stator winding of the alternator.
–
Clean the air filter and air filter box.
(
p. 55)
–
Change the fuel filter.
–
Read out the fault memory using the KTM diag-
nostics tool.
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of the main
silencer.
(
p. 57)
–
Adjust the valve clearance.
–
Ignition coil - check the secondary winding.
–
Check the spark plug connector.
–
Check the stator winding of the alternator.
–
Fill up with fuel. (
p. 34)
–
Check the cooling system for leaks.
–
Check the coolant level. (
–
Switch off the engine when standing.
–
Clean the radiator fins.
–
Drain the coolant.
(
–
Refill the coolant.
(
–
Change the radiator hose.
–
Check the thermostat.
–
Check fuse 7.
–
Check the radiator fan.
99
p. 31)
(
p. 85)
p. 85)
p. 31)
(
p. 91)
p. 88)
p. 89)
p. 89)
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