Suzuki GSX-R750 Service Manual page 437

Step 3
1) Turn the ignition switch OFF.
2) Disconnect the EXCVA motor coupler (1).
3) To set the EXCV to fully closed position, apply 12 V
to the terminals as follows:
Positive wire — P wire terminal
Negative wire — Gr wire terminal
CAUTION
!
To prevent the motor damage, stop applying
12 V as soon as EXCV reaches fully closed
position.
1
4) Insert the needle pointed probes into the back side
of the EXCVA position sensor coupler (2) ((+) Y – (–)
W)
5) Turn the ignition switch ON.
6) Measure the EXCVA position sensor output voltage
at fully closed position.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe
set)
Tester knob indication
Voltage ( )
EXCVA position sensor output voltage
EXCV is fully closed: 0.45 ≤ Output voltage ≤ 1.4
V ((+) Y – (–) W)
I837H11B0033-01
(B)
(A)
2
I837H11B0034-01
7) If the measured voltage is less than specification,
adjust the No. 1 cable adjuster as follows:
a) Set the EXCVA to the adjustment position. Refer
to "EXCV Cable Removal and Installation
(Page 1K-6)".
CAUTION
!
Adjusting the No. 1 cable with the EXCV fully
closed can damage the EXCVA. Be sure to
adjust the No. 1 cable with the EXCV set in
the adjustment position.
b) Turn the No. 1 cable adjuster (3) in or out to set
the output voltage within the specified value.
NOTE
If C46 code is indicated after adjusting the
voltage, increase the voltage to 0.9 V.
3
Step 4
1) To set the EXCV to fully opened position, apply 12 V
to the terminal oppositely.
Positive wire — Gr wire terminal
Negative wire — P wire terminal
CAUTION
!
To prevent the motor damage, stop applying
12 V as soon as the EXCV reaches fully
opened position.
Exhaust System: 1K-10
I837H11B0035-01
I837H11B0036-01