21 TROUBLESHOOTING
154
Faults Possible cause Action
The engine cannot be cranked
(starter motor)
Operating error – Carry out the start procedure.
( p. 44)
12-V battery discharged – Charge the 12-V battery. ( p. 120)
– Check the charging voltage.
– Check the closed current.
– Check the stator winding of the alter-
nator.
Main fuse is blown – Change the main fuse. ( p. 122)
Starter relay faulty – Check the starter relay.
Starter motor faulty – Check the starter motor.
The engine turns but does not
start
Operating error – Carry out the start procedure.
( p. 44)
The plug-in connection of the
fuel line is not joined
– Join the plug-in connection of the fuel
line.
Idle speed is not set correctly – Adjust the idle speed. ( p. 137)
Fuel supply interrupted – Check the fuel tank breather.
Spark plug oily or wet – Clean and dry the spark plug, or
change it if necessary.
Plug gap of spark plug too wide – Adjust plug gap.
Guideline
Spark plug electrode gap
0.6 mm (0.024 in)
Faulty ignition – Ignition coil - check the primary wind-
ing.
– Check the spark plug connector.
– Check the stator winding of the alter-
nator.
Short-circuit cable in wiring
harness frayed, switch-off but-
ton or emergency OFF switch
faulty
– Check wiring harness (visual check).
– Check the electrical system.
The connector or ignition coil is
loose or oxidized
– Clean the connector and treat it with
contact spray.
Defect in the fuel injection sys-
tem
– Check the cabling for damage and the
electrical plug-in connections for corro-
sion and damage.
– Read out the fault memory using the
KTM diagnostics tool.
Engine has no idle Spark plug defective – Change the spark plug.
Faulty ignition – Ignition coil - check the primary wind-
ing.
– Check the spark plug connector.
– Check the stator winding of the alter-
nator.
Idle speed is not set correctly – Adjust the idle speed. ( p. 137)
To Next Page
Loading...
Need help?
General
