Checking The Throttle Servo Motor - Yamaha XSR 900 2022 Service Manual

2. Check:
• Coolant temperature sensor resistance
Out of specification → Replace.
Coolant temperature sensor re-
sistance
2513–2777 Ω at 20 °C (2513–
2777 Ω at 68 °F)
Coolant temperature sensor re-
sistance
210–221 Ω at 100 °C (210–221 Ω
at 212 °F)
a. Connect the digital circuit tester (Ω) to the
coolant temperature sensor as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
b. Immerse the coolant temperature sensor
"1" in a container filled with coolant "2".
TIP
Make sure the coolant temperature sensor ter-
minals do not get wet.
c. Place a thermometer "3" in the coolant.
3
G089056
d. Heat the coolant or let it cool down to the
specified temperatures.
e. Measure the coolant temperature sensor
resistance.
3. Install:
• Coolant temperature sensor
Coolant temperature sensor
15 N·m (1.5 kgf·m, 11 lb·ft)
1
2
ELECTRICAL COMPONENTS
EAS30592

CHECKING THE THROTTLE SERVO MOTOR

1. Remove:
• Air filter case
Refer to "GENERAL CHASSIS (5)" on
page 4-11.
2. Check:
• Throttle valve operation
Throttle valves do not fully close → Replace
the throttle bodies.
a. Connect two C-size batteries to the throttle
servo motor terminals "1" as shown.
ECA17660
NOTICE
Do not use a 12 V battery to operate the throt-
tle servo motor.
TIP
Do not use old batteries to operate the throttle
servo motor.
1
3 V
1
3 V
A. Check that the throttle valves "2" open.
B. Check that the throttle valves "2" fully close.
8-48
1
1
2
2