Yamaha YZFR1Y(C) 2009 Service Manual page 513

Digital circuit tester
90890-03174
Model 88 Multimeter with
tachometer
YU-A1927
Test harness S-pressure sensor
5S7 (3P)
90890-03211
YU-03211
• Positive tester probe
Pink/White (wire harness color)
• Negative tester probe
Black/Blue (wire harness color)
c. Turn the main switch to "ON".
d. Measure the intake air pressure sensor
output voltage.
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EAS28420
CHECKING THE INTAKE AIR TEMPERA-
TURE SENSOR
1. Remove:
• Intake air temperature sensor
(from the headlight assembly.)
EWA14110
WARNING
• Handle the intake air temperature sensor
with special care.
• Never subject the intake air temperature
sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
• Intake air temperature sensor resistance
Out of specification → Replace.
Intake air temperature sensor
resistance
5.4–6.6 kΩ at 0 °C (32 °F)
290–390 Ω at 80 °C (176 °F)
ELECTRICAL COMPONENTS
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a. Connect the pocket tester (Ω × 100) to the
intake air temperature sensor terminal as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. Immerse the intake air temperature sensor
"1" in a container filled with water "2".
TIP
Make sure that the intake air temperature sen-
sor terminals do not get wet.
c. Place a thermometer "3" in the water.
d. Slowly heat the water, then let it cool down
to the specified temperature.
e. Measure the intake air temperature sensor
resistance.
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3. Install:
• Intake air temperature sensor
Intake air temperature sensor
screw
1.5 Nm (0.15 m·kgf, 1.1 ft·lbf)
EAS14B1020
CHECKING THE STEERING DAMPER
SOLENOID
1. Remove:
• Left side cowling
Refer to "GENERAL CHASSIS" on page
4-1.
2. Check:
• Steering damper solenoid resistance
Out of specification → Replace the steer-
ing damper assembly.
Steering damper solenoid resis-
tance
49.82–56.18 Ω at 20 °C (68 °F)
8-126