TROUBLESHOOTING
If you have your motorcycle serviced as set forth in this manual, no malfunctioning is to be expected. Nevertheless, if an error does
arise, we recommend that you look for the error according to the following chart.
Please note that you cannot perform all of the work yourself. If you are not sure, contact a KTM dealer.
ERROR
Engine does not switch on
Engine does not switch on
and the neutral indicator
lamp does not light up
Engine only switches on
when the clutch lever is
pulled
Engine switches on although
a gear is engaged
Engine switches on but does
not start
CAUSE
Operating error
Battery is dead
Ignition lock or emergency off tip
switch is defective
Fuse for starting system is blown.
Main fuse is blown.
Back-up starter system is defective
Back-up starter system is defective
Operating error
Motorcycle was not used for a lon-
ger period of time, old fuel in the
float chamber
Interrupted fuel supply
Drowned engine
Spark plug is sooted or wet
Electrode distance is too large
Spark plug connector or spark plug
is defective
Socket connector on CDI unit,
pulse generator or ignition coil are
oxidized
Water in the carburetor or jets
clogged
REMEDY
Switch on the ignition, switch the transmission to neutral
Charge the battery and determine the cause for discharging.
Visit a workshop
Check the ignition lock and the emergency off tip switch, visit
a workshop.
Replace the fuse (3).
Remove the seat and replace the main fuse. If the fuse blows
again, visit a workshop
Visit a workshop
Visit a workshop
Open the fuel tap, refuel, do not actuate the choke, follow
the starting instructions (see Driving Instructions)
Inflammable constituents in modern fuels volatilize if left stan-
ding over longer periods of time. If the motorcycle is not used
for more than 1 week, the old fuel should be drained from the
float chamber. The engine will switch on as soon as the float
chamber is filled with fresh, ignitable fuel.
Disconnect the fuel hose from the carburetor, place in a suita-
ble vessel and open the fuel tap,
– if any fuel runs out, clean the carburetor
– if no fuel runs out, check the tank ventilation or clean the
fuel tap
Open the throttle completely when you start or replace the
spark plug
Clean and dry the spark plug or replace it
Set the electrode distance to 0.9 mm
Remove the spark plug, connect the ignition wire, apply the
spark plug to the ground (bright area on the engine) and
start; a strong spark should be visible at the spark plug
– if no spark is visible, replace the spark plug
– if no spark is visible yet, disconnect the spark plug cap from
the ignition wire, hold approx. 5 mm away from the ground
and start
– if a spark is visible now, replace the spark plug connector
– if no spark is visible, have the ignition system checked
Remove the seat, right side cover and fuel tank, clean the
socket connectors and treat with contact spray
Remove and clean the carburetor.
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