TROUBLESHOOTING
96
Faults
Possible cause
Action
The engine cannot be cranked (elec-
tric starter)
Operating error
–
Carry out the start procedure. (
Battery is discharged
–
Charge the battery.
–
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. (
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. (
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
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.
Plug-in connector of the EFI control
device, ignition pulse generator, or
ignition coil is oxidized
–
Clean the plug connection and treat it with
contact spray.
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
Fuel filter is very dirty
–
Change the fuel filter.
x
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.
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. (
Fuse
1
blown
–
Change the fuses of individual power
consumers. (
Fuse
2
blown
–
Change the fuses of individual power
consumers. (
Engine overheats
Coolant level low in cooling system
–
Check the cooling system for leaks.
–
Check the coolant level. (
Summary of Contents for 2012 350 EXC-F SIX DAYS
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