21 TROUBLESHOOTING
146
Faults
Possible cause
Action
The engine cannot be cranked
(electric starter)
Operating error
–
Carry out the start procedure.
(
Battery is discharged
–
Recharge the battery.
–
Check the charging voltage.
–
Check the open-circuit current.
–
Check the stator winding of the alter-
nator.
Main fuse blown
–
Change the main fuse. (
Starter relay defective
–
Check the starter relay.
Starter motor defective
–
Check the starter motor.
The engine turns but does not
start
Operating error
–
Carry out the start procedure.
(
The plug-in connection of the
fuel hose connection is not
connected
–
Connect the plug-in connection of the
fuel line.
Fuse
1
blown
–
Change the fuses of individual power
consumers. (
Fuse
4
blown
–
Change the fuses of individual power
consumers. (
Idle speed is not set correctly
–
Adjust the idle speed.
Spark plug oily or wet
–
Clean and dry the spark plug or replace
if necessary.
Electrode distance (plug gap)
of spark plug too wide
–
Adjust the plug gap.
Guideline
Spark plug electrode gap
1.0 mm (0.039 in)
Ignition system defective
–
Check the ignition system.
Short-circuit cable in wiring
harness frayed, kill switch or
emergency OFF switch defec-
tive
–
Check the wiring harness. (visual
check)
–
Check the electrical system.
Defect in fuel injection system
–
Read out the fault memory using the
KTM diagnostics tool.
Engine does not speed up
Defect in fuel injection system
–
Read out the fault memory using the
KTM diagnostics tool.
Ignition system defective
–
Ignition coil - check the secondary
winding.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
Engine has too little power
Air filter heavily contaminated
–
Clean the air filter and air filter box.
(
Fuel filter is very dirty
–
Change the fuel filter.
Fuel screen is very dirty
–
Change the fuel screen.
Defect in fuel injection system
–
Read out the fault memory using the
KTM diagnostics tool.