ENGLISH
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TROUBLE SHOOTING
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If you let the specified maintenance work on your motorcycle be carried out, disturbances can hardly be expected. Should an error
occur nevertheless, we advise you to use the trouble shooting chart in order to find the cause of error.
We would like to point out that many operations cannot be performed by oneself. In case of uncertainty, please contact a KTM-dealer.
TROUBLE CAUSE REMEDY
Engine doesn’t crank.
(E.-starter)
Operating errror
Discharged battery.
Defect ignition lock or emergency OFF
switch
Blown fuse safe-starting system.
Blown main fuse.
Turn on the ignition
Recharge the battery and investigate the causes for dis-
charging; contact a KTM dealer
Check ignition lock and emergency OFF switch, contact a
KTM dealer
SXC: Replace fuse (3)
SMC: Replace fuse (2)
Remove seat and replace the main fuse. If fuse blows
again contact a KTM dealer
Engine cranks but doesn’t start. Operating error
The motorcycle has been out of operation
for a longer period of time. Therefore old
fuel has accumulated in the float cham-
ber
Fuel supply interrupted
Flooded engine
Sooty or wet spark plug
Electrode gap too large
Spark plug connector or spark plug faulty
The plug connection of the CDI-unit, the
pulse generator or the ignition coil has
oxydized
Water in carburetor or jets blocked
Open fuel tap, tank fuel, you did not use choke i.e. the
warmstart device. Pay attention to starting off information
(see driving instructions
The easily inflammable components of the new fuels evap-
orate during longer periods of standstill.
When the motorcycle has been out of operation for more
than a week, it is therefore recommended to drain the old
fuel from the float chamber. The engine will immediately
start off when the float chamber is filled with new fuel.
Place a vessel underneath, remove the drain plug from the
carburetor and open the fuel cock,
– if fuel leaks out, the carburetor might need cleaning
– if no fuel leaks out, check tank ventilation, i.e. clean fuel
tap
Fully open the throttle when starting or exchange the spark
plug, respectively
Clean and dry the spark plug or exchange it, respectively
Adjust spark plug elektrode gap to 0,9 mm
Dismount spark plug, connect ignition cable, hold to ground
(blank place on engine) and actuate starter, a strong spark
must be produced at the spark plug
– If no spark is created exchange the spark plug.
– If the new spark plug doesn't produce a spark either, dis
connect the spark plug connector from the ignition cable,
hold it a distance of approx. 5 mm from ground and start.
– If a spark now occurs, replace spark plug cap
– If no spark is produced, control ignition system
Remove the seat, the right side cover and the fuel tank.
Clean the plug connection and treat it with contact spray
Dismount and clean carburetor
Engine fails to idle Glogged idling jet
Oncorrect adjustment of adjusting screws
on carburetor
Defective spark plug
Defective ignition system
Disassemble carburetor and clean jets
Have carburetor adjusted
Replace spark plug
Have ignition system checked
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