Checking/Adjusting The Float Level; Adjusting The Position Of The Throttle Position Sensor - KTM 450 SX ATV 2010 Repair Manual

31/CARBURETOR

Checking/adjusting the float level

21.19

Adjusting the position of the throttle position sensor

21.20
Info
The value in the figure is an example only.
Condition
The carburetor and float chamber have been removed.
–
Tilt the carburetor to one side, preventing the pin of the float from falling out.
–
Tilt the carburetor until the float rests against the float needle valve but the float
needle valve is not pushed together.
» If the edge of the float is not parallel to the sealing area of the float housing in
this position:
–
Adjust the float level by bending float lever
700061-10
Condition
The carburetor has been removed.
Component temperature: 20 °C (68 °F)
–
Check/adjust the throttle slide opening. (
–
Connect the plus cable of the multimeter 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
Guideline
Throttle position sensor, total resis-
tance R
tot
700063-10
–
Multiply the total throttle position sensor resistance R
variable throttle position sensor resistance R
–
R x 0.17 = R
tot
700064-10
–
Connect the plus cable of the multimeter to the yellow (ye) cable and the ground
cable to the black (bl) cable of the throttle position sensor connector.
–
Measure the variable throttle position sensor resistance R
Info
The throttle slide must be in the basic position.
–
Loosen screw
value.
–
Tighten screw
700066-10
Guideline
Screw, throttle position sensor
–
Check the variable throttle position sensor resistance R
» If the measured value is outside of the calculated value:
–
Repeat the adjustment procedure.
.
tot
(tolerance ± 0.05 kΩ)
var
. Adjust the throttle position sensor

.

.

p. 173)
4... 6 kΩ
by 0.17. The product is the
tot
for the setting.
var
.
var
by turning to the calculated

M5 3.5 Nm
(2.58 lbf ft)
again.
var
174