Checking The Throttle Valve Sensor; Disassembling The Carburetor - KTM 400 EXC AUS 2011 Repair Manual

31/CARBURETOR
165
- Check the throttle slide. ( ... p. 168)
- Check the needle jet. ( ... p. 169)
- Check the float needle valve. ( ... p. 169)
- Assemble the carburetor. ( ... p. 169)
Checkin&lhe throttle valve sensor
• Info
I
The value in the figure is an example only!
Condition
The carburetor has been removed.
Component temperature: 20 'C (68 'F)
- Check/set the throttle slide opening. ( ... p. 172)
- Connect the plus cable of the multi meter to the blue (bu) cable and the ground
cable to the black (bl) cable of the throttle position sensor connector. Measure the
total throttle position sensor resistance R
iol •
Guideline
Total resistance R"" of the throttle valve 4 ... 6 krl
sensor
- Connect the plus cable of the multi meter to the yellow (ye) cable and the ground
cable to the black (bl) cable of the throttle position sensor connector.
- Slowly open the throttle slide and measure the variable throttle position sensor
resistance Rvaro
Variable resistance R_ of the throt-
tle valve sensor (throttle slide fully
opened)
3 ... 4.5 kn
• If the value does not increase at a uniform rate:
' -_ _ _ _ _ _ _ _ _ _ --' - 70:..:00=64-;....:.;10:..1 -
Change the throttle position sensor.
• If the value is outside of specifications:
- Adjust the position of the throttle position sensor. ( ... p. 173)
Disassemblin the carburetor
Condition
The carburetor has been removed.
- Remove screws. and detach all vent hoses from the carburetor.
- Remove screws
e.
Take off the throttle slide cover and seal.
31/CARBURETOR
165
- Check the throttle slide. ( ... p. 168)
- Check the needle jet. ( ... p. 169)
- Check the float needle valve. ( ... p. 169)
- Assemble the carburetor. ( ... p. 169)
Checkin&lhe throttle valve sensor
• Info
I
The value in the figure is an example only!
Condition
The carburetor has been removed.
Component temperature: 20 'C (68 'F)
- Check/set the throttle slide opening. ( ... p. 172)
- Connect the plus cable of the multi meter to the blue (bu) cable and the ground
cable to the black (bl) cable of the throttle position sensor connector. Measure the
total throttle position sensor resistance R
iol •
Guideline
Total resistance R"" of the throttle valve 4 ... 6 krl
sensor
- Connect the plus cable of the multi meter to the yellow (ye) cable and the ground
cable to the black (bl) cable of the throttle position sensor connector.
- Slowly open the throttle slide and measure the variable throttle position sensor
resistance Rvaro
Variable resistance R_ of the throt-
tle valve sensor (throttle slide fully
opened)
3 ... 4.5 kn
• If the value does not increase at a uniform rate:
' -_ _ _ _ _ _ _ _ _ _ --' - 70:..:00=64-;....:.;10:..1 -
Change the throttle position sensor.
• If the value is outside of specifications:
- Adjust the position of the throttle position sensor. ( ... p. 173)
Disassemblin the carburetor
Condition
The carburetor has been removed.
- Remove screws. and detach all vent hoses from the carburetor.
- Remove screws
e.
Take off the throttle slide cover and seal.