Checking And Adjusting The Throttle Position Sensor - Yamaha BT1100 2002 Service Manual

CARBURETOR
EB600071
CHECKING AND ADJUSTING THE THROTTLE
POSITION SENSOR
NOTE:
Before adjusting the throttle position sensor, the
engine idling speed should be properly adjusted.
1. Inspect:
• throttle position sensor
a. Disconnect the throttle position sensor cou-
pler.
b. Connect the pocket tester (Ω
throttle position sensor.
Tester positive lead
Tester negative lead
c. Check the throttle position sensor resistance
"R1".
Out of specification
position sensor.
Throttle position sensor
resistance "R1"
4 6 kΩ at 20 °C (68 °F)
(blue – black)
d. Connect the pocket tester (Ω
throttle position sensor.
Tester positive lead
Tester negative lead
e. While slowly opening the throttle, check that
the throttle position sensor resistance "R2" is
within the specified range.
Out of specification
position sensor.
Throttle position sensor
resistance "R2"
0.56 0.84 kΩ to 3.01
4.51 kΩ at 20 °C (68 °F)
(yellow – black)
2. Adjust:
• throttle position sensor angle
a. Loosen the throttle position sensor screws 1.
b. Turn the throttle position sensor in direction a
or b until the specified closed-throttle resist-
ance is indicated on the pocket tester.
5-8
CARB
1k) to the
blue 1
black 2
Replace the throttle
1k) to the
yellow 3
black 2
Replace the throttle