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21 TROUBLESHOOTING
Faults
The engine does not turn when
the start button is pressed
The engine turns but does not
start
Engine does not speed up
Engine has too little power
130
Possible cause
Operating error
12-V battery discharged
Main fuse blown
Starter relay defective
Starter motor defective
Operating error
Quick release coupling not
joined
Fuse 8 is blown
Idle speed is not set correctly
Spark plug oily or wet
Plug gap of spark plug too wide
Faulty ignition system
Short-circuit cable in wiring
harness frayed, stop button
faulty
Error in the electronic fuel
injection
Error in the electronic fuel
injection
Faulty ignition system
Air filter is very dirty
Fuel filter is very dirty
Error in the electronic fuel
injection
Exhaust system leaky,
deformed or too little glass
fiber yarn filling in main
silencer
Valve clearance too little
Action
–
Carry out start procedure. (
–
Charge the 12-V battery.
–
Check charging voltage.
–
Check the open-circuit current.
–
Check the stator winding of the alter-
nator.
–
Change the main fuse. (
–
Check the starter relay.
–
Check the starter motor.
–
Carry out start procedure. (
–
Join the quick release coupling.
–
Change the fuses of individual electri-
cal power consumers. (
–
Adjust the idle speed.
–
Clean and dry the spark plug, or
change it if necessary.
–
Adjust 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 fault memory using the KTM
diagnostics tool.
–
Read out fault memory using the KTM
diagnostics tool.
–
Ignition coil - check the secondary
winding.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
–
Clean the air filter and air filter box.
(
p. 68)
–
Change the fuel filter.
–
Read out fault memory using the KTM
diagnostics tool.
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of
the main silencer.
(
–
Adjust the valve clearance.
p. 37)
(
p. 109)
p. 110)
p. 37)
p. 111)
(
p. 119)
p. 70)
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