Yamaha YZF-R1 Series Service Manual page 486

Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
b. Immerse the intake air temperature sen-
sor "1" in a container filled with water "2".
TIP
Make sure that the intake air temperature sensor
terminals do not get wet.
c. Place a thermometer "3" in the water.
3
1
d. Slowly heat the water, then let it cool down
to the specified temperature.
e. Measure the intake air temperature sen-
sor resistance.
3. Install:
• Intake air temperature sensor
EAS30598
CHECKING THE STEERING DAMPER
SOLENOID
1. Remove:
• Front upper cowling
Refer to "GENERAL CHASSIS (4)" on page
4-13.
2. Check:
• Steering damper solenoid resistance
Out of specification → Replace the steering
damper assembly.
Steering damper solenoid resis-
tance
49.82–56.18 Ω
a. Disconnect the steering damper lead cou-
pler from wire harness.
b. Connect the digital circuit tester (Ω) to the
steering damper lead coupler.
2
ELECTRICAL COMPONENTS
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
black "1"
• Negative tester probe
black "2"
c. Measure the steering damper solenoid re-
sistance.
EAS30681
CHECKING THE FUEL INJECTORS
The following procedure applies to all of the fuel
injectors.
1. Remove:
• Fuel injector
Refer to "THROTTLE BODIES" on page 7-11
or "AIR FILTER CASE" on page 7-5.
2. Check:
• Fuel injector resistance
Out of specification → Replace the fuel injec-
tor.
Resistance
12.0 Ω
a. Disconnect the fuel injector coupler from
the fuel injector.
b. Connect the digital circuit tester (Ω) to the
fuel injector coupler as shown.
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with ta-
chometer
YU-A1927
• Positive tester probe
Injector terminal "1"
• Negative tester probe
Injector terminal "2"
8-51
B B
1 2