Adjusting The Throttle Position Sensor; Checking And Adjusting The Sub-Throttle Position Sensor - Yamaha XJR1300 2007 Service Manual

Vacuum pressure increase → → → →
Fuel pressure too low.
Vacuum pressure decrease → → → →
Fuel pressure too high.
Faulty → Replace the pressure regulator.
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EAS27020
ADJUSTING THE THROTTLE POSITION
SENSOR
NOTE:
Before adjusting the throttle position sensor, the
engine idling speed should be checked.
1. Check:
Throttle position sensor
G
Refer to "CHECKING THE THROTTLE PO-
SITION SENSOR" on page 7-97.
2. Adjust:
Throttle position sensor angle
G
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a. Reconnect the throttle position sensor cou-
pler.
b. Connect the digital circuit tester (DC 20 V) to
the throttle position sensor coupler.
Tester positive probe
Yellow
Negative tester probe
Black/Blue
Digital circuit tester
90890-03174
Model 88 Multimeter with tachom-
eter
YU-A1927
c. Set the main switch to "ON".
d. Measure the throttle position sensor output
voltage.
Throttle position sensor output
voltage (during idling)
0.63–0.73 V
e. Loosen the throttle position sensor bolt "1".
f. Adjust the throttle position sensor angle so
that the output voltage is within the specified
range.
g. After adjusting the throttle position sensor an-
gle, tighten the throttle position sensor bolt.
Throttle position sensor bolt
3.5 Nm (0.35 m•kg, 2.5 ft•lb)
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EAS5UXB009
CHECKING AND ADJUSTING THE
SUB-THROTTLE POSITION SENSOR
1. Check:
Sub-throttle position sensor
G
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a. Remove the sub-throttle position sensor cou-
pler
b. Remove the sub-throttle position sensor from
the sub-throttle servo motor.
c. Connect the pocket tester (Ω × 1k) to the
sub-throttle position sensor as shown.
Tester positive probe
Blue "1"
Negative tester probe
Black/Blue "2"
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
6-8
THROTTLE BODIES
1
2
1
Gy
B
L
L
B
3