KTM 125 SX EU 2015, Owner'S Manual

Page: 88 / 129

16 TUNING THE ENGINE
86
Warning
Environmental hazard Improper handling of fuel is a danger to the environment.
–
Do not allow fuel to get into the ground water, the ground, or the sewage system.
Info
Carry out this work with a cold engine.
Water in the float chamber results in malfunctioning.
Preparatory work
(All SX models)
–
Turn handle

of the fuel tap to the OFF position.
(Figure B02072-10 p. 14)
Fuel no longer flows from the fuel tank to the carburetor.
(All XC models)
–
Turn handle  of the fuel tap to the OFF position.
(Figure L00904-10 p. 15)
Fuel no longer flows from the fuel tank to the carburetor.
101714-10
Main work
–
Place a cloth beneath the carburetor to soak up emerging fuel.
–
Remove plug

.
–
Completely drain the fuel.
–
Mount and tighten the plug.
16.6 Plug-in connection, ignition timing map
B02128-10
Plug-in connection  is located on the frame under the fuel tank.
Possible states
• Soft
–
The plug-in connection is disconnected to achieve better rideability.
• Performance
–
The plug-in connection is connected to achieve higher
performance.
16.7 Changing the ignition curve
Change the ignition curve from Performance to Soft.
–
Disconnect plug-in connection

. (Figure B02128-10 p. 86)
Soft
–
better rideability
Change the ignition curve from Soft to Performance.
–
Connect plug-in connection

. (Figure B02128-10 p. 86)
Performance
–
better performance
16.8 Checking the basic position of the shift lever
400692-10
–
Sit on the vehicle in the riding position and determine the distance

between
the upper edge of your boot and the shift lever.
Distance between shift lever and upper
edge of boot 10… 20 mm (0.39… 0.79 in)
» If the distance does not meet specifications:
–
Adjust the basic position of the shift lever. x ( p. 87)