Trouble Shooting - KTM DUKE 640 e Owner's Handbook Manual

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
Engine doesn't crank.
Engine doesn't crank; and
headlight don't light up.
The engine cranks only with
pulled clutch lever
Engine cranks with gear engaged.
Engine cranks but doesn't
start.
Engine fails to idle

TROUBLE SHOOTING

CAUSE
Operating errror
Discharged battery.
Defect ignition lock or emergency
OFF switch
Blown main fuse
Discharged battery.
The diode at the connector support
is defect (interrupted)
Defect safe-starting system.
Operating error
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
Carburetor does not fit in properly
at intake flange
Glogged idling jet
Oncorrect adjustment of adjusting
screws on carburetor
Defective ignition system
REMEDY
Turn on the ignition, switch the gear to neutral and switch
the emergency OFF switch on, swing up side stand.
Starting see Driving Instrctions page13. Recharge the battery and
investigate the causes for discharging; contact a KTM dealer.
Check ignition lock and emergency OFF switch, contact a
KTM dealer.
Remove seat and replace the main fuse. If fuse blows again
contact a KTM dealer
Charge battery as indicated in the manual and determine
cause of discharge. Contact a KTM dealer.
Contact a KTM dealer; the diode must be replaced.
Contact a KTM dealer.
Open fuel tap, tank fuel, you did not use choke i.e. the
warmstart device. Pay attention to starting off information
(see driving instructions).
Loosen fuel hose at carburettor, lead into a basin and open fuel tap
– if fuel leaks out, the carburetor might need cleaning
– if no fuel leaks out, check tank ventilation, i.e. clean fuel tap
See driving instructions
Clean or replace spark plug
Adjust spark plug elektrode gap to 0,7 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 produced, loosen spark plug cap from ignition
cable, hold about 5 mm from ground and actuate kickstarter
– 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
Check if carburetor is fitted in correctly
Disassemble carburetor and clean jets
Have carburetor adjusted
Have ignition system checked
33