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Faults Possible cause Measure
The engine cannot be cranked (electric
Operating error ದ Carry out instructions on starting.
( P. 26)
Battery discharged ದ Recharge the battery. ( P. 68)
ದ Check the cause of discharging.
Fuse blown ದ Remove the fuse. ( P. 69)
ದ Replace the fuse. ( P. 69)
Low external temperature ದ Start the engine with the kickstarter.
ದ Recharge the battery. Establish the
reason for discharging or have it
checked in a KTM workshop.
Engine turns but does not start. Operating error ದ Carry out instructions on starting.
( P. 26)
Motorcycle was out of use for a long time
and there is old fuel in the float chamber
ದ Empty the carburetor float chamber.
( P. 78)
Fuel feed interrupted ದ Check tank vent.
ದ Clean fuel tap.
ದ Clean carburetor.
Engine flooded ದ Clean and dry spark plug or replace if
Spark plug oily or wet ದ Clean and dry spark plug or replace if
Electrode distance (plug gap) of spark
plug too wide
ದ Adjust plug gap.
Spark plug electrode gap
0.8… 0.9bmm (0.031… 0.035bin)
Spark plug connector or spark plug defec-
Risk of injuryಘThe ignition sys-
tem is under high voltage.
ದ Do not touch parts of the ig-
nition system. Have work on
the ignition system carried
out in an authorized KTM
ದ Remove spark plug, connect ignition
cable, hold spark plug to ground (bare
metal area on engine), and try to start
You should see a strong spark on the
ದ If there is no spark, change the spark
ದ If there is still no spark, remove the
spark plug cap from the ignition cable,
hold it at the specified distance from
the ground contact, and try to start the
ದ If you now have a spark, replace the
spark plug connector.
ದ If there is no spark, have the ignition
Short-circuit cable in cable harness
frayed, short-circuit button or emergency
OFF switch defective
ದ Check wiring harness. (visual check)
ದ Check electrical system.
Socket connector of CDI control device,
pulse generator or ignition coil oxidized.
ದ Clean socket connector and treat it
with contact spray.