Stp Sensor Adjustment; Stp Sensor Removal And Installation - Suzuki GSF650A Service Manual

1C-4 Engine Electrical Devices:

STP Sensor Adjustment

Adjust the STP sensor in the following procedures:
1) Move the air cleaner box backward. Refer to "Air
Cleaner Box Removal and Installation in Section 1D
(Page 1D-7)".
2) Remove the regulator/rectifier. Refer to "Regulator /
Rectifier Inspection in Section 1J (Page 1J-8)".
3) Disconnect the STVA lead wire coupler (1).
4) Insert the needle pointed probes to the STP sensor
coupler.
5) Turn the ignition switch ON position.
6) Close the secondary throttle valve by finger and
measure the STP sensor output voltage.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe
set)
Tester knob indication
Voltage ( )
STP sensor output voltage
ST valve is fully closed: Approx. 0.6 V ((+): Y/W –
(–): B/Br)
(B)
B817H21306013
1
I717H1130008-01
I718H1130017-01
(A)
I717H1130009-02
7) Loosen the STP sensor mounting screw adjust the
STP sensor (2) until the output voltage comes within
the specified value and tighten the STP sensor
mounting screw.
Special tool
: 09930–11950 (Torx wrench)
Tightening torque
STP sensor mounting screw: 3.5 N·m (0.35 kgf-
m, 2.5 lbf-ft)
8) Reinstall the removed parts.

STP Sensor Removal and Installation

Removal
1) Turn the ignition switch OFF position.
2) Disconnect the coupler (1) and remove the STP
sensor (2) with the special tool.
NOTE
Prior to disassembly, mark each sensor's
original position with a paint or scribe for
accurate reinstallation.
Special tool
: 09930–11950 (Torx wrench)
2
I717H1130010-01
B817H21306014
2
1
I717H1130011-01