Honda C8R600F4 Service Manual page 320

IGNITION SYSTEM
17-R
Check that the resistance between the yellow/blue
and blue/green wire terminals of the ICM connector
varies with the throttle position while operating the
throttle grip.
Fully
open~
Fully closed position: Resistance
decreases
Fully closed-Fully open position: Resistance
increases
If the correct measurements cannot be obtained,
raise the fuel tank (page 2-3), disconnect the
throttle sensor 3P connector and perform the same
inspections at the sensor terminals.
• If the measurement at the ICM is abnormal and
the one at the throttle sensor is normal, check for
open or short circuit, or loose or poor
connections in the wire harness.
• If both measurements are abnormal, replace the
throttle sensor.
Connect the ICM connector.
Turn the ignition switch ON.
Measure the input voltage between the yellow/
bla<.:k (
+)
aml blue/yreen (-) wire terminals of the
wire harness side throttle sensor connector.
STANDARD:
4. 7 - 5.3 V
If the input voltage is abnormal, or if there is no
input voltage, check for open or short circuit in the
wire harness, or loose or poor ICM connector
contact.
REPLACEMENT
Remove the carburetor assembly from the cylinder
head intake ports (page 5-15).
Disconnect the throttle sensor connector.
Remove the two torx screws and the throttle sensor.
Install the throttle sensor by aligning the tabs of the
sensor with the flat of the shaft as shown.
Apply locking agent to the torx screw threads and
loosely install the screws.
CAUTION:
Install the throttle sensor properly. Improper instal-
lation can cause damage to the throttle sensor.