Ignition Curve Plug-In Connector; Changing The Ignition Timing Map - KTM 300 EXC Owner's Manual

17.6

Ignition curve plug-in connector

17.7

Changing the ignition timing map

Info
If the map switch (optional) is installed, the ignition timing map can be changed from the handlebar.
Switching the ignition timing map from Performance to Soft
–
Disconnect plug-in connector
Soft – better rideability
Switching the ignition timing map from Soft to Performance
–
Join plug-in connector
Performance – better performance
Guideline
Choke function deactivated – The choke lever is pushed in
to the stop. (
Idle speed
–
Turn idle air adjusting screw
tion until the idle speed begins to fall.
–
Note the position and turn the idle air adjusting screw slowly
counterclockwise until the idle speed again begins to fall.
–
Adjust to the point between these two positions with the high-
est idle speed.
Info
If there is a big engine speed rise, reduce the idle
speed to a normal level and repeat the above steps.
If the procedure described here does not lead to sat-
isfactory results, the cause may be a wrongly dimen-
sioned idling jet.
If you can turn the idle air adjusting screw to the end
without any change of engine speed, mount a smaller
idling jet.
After changing the jet, start from the beginning with
the adjusting steps.
Following extreme air temperature or altitude changes,
adjust the idle speed again.
Plug-in connector
located on the frame under the fuel tank.
Possible states
Soft – The plug-in connector of the ignition timing map
•
adjustment is disconnected to achieve better rideability.
Performance – The plug-in connector of the ignition timing
•
map adjustment is joined to achieve higher performance.
K01217-10
1
of the ignition timing map adjustment. (Figure K01217-10
1
of the ignition timing map adjustment. (Figure K01217-10
TUNING THE ENGINE 17
p. 19)
1,400 ... 1,500 rpm
1
slowly in a clockwise direc-
1
of the ignition timing map adjustment is
p. 121)
p. 121)
121