Suzuki GSX-R 1000 Service Manual: Exhaust control system operation
The excs is operated by the signal supplied from the ecm. The open/close operation of the excv is performed by the excva which is controlled by the ecm by changing the current direction of the actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.
Full close
Full open
Exhaust control system description
The exhaust control system (excs) consists of the exhaust control valve (excv),
exhaust control valve actuator
(excva) and exhaust control valve cables (excv cables).
Excv is installed in the ex ...
Other materials:
Ignition switch removal and installation
Removal
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the ignition switch lead wire coupler (1).
Disconnect the immobilizer lead wire coupler (2).
(For e-02, 19, 24, 51)
Remove the harness clamp (3).
...
Pair system hose routing diagram
Pair control solenoid valve
Pair reed valve
White marking (hidden side)
Yellow marking
Blue marking
Red marking
Face the
clamp end to the top.
Make sure
the clamp is not contacted to the frame or air cleaner box.
90°
45°
15°
...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Front wheel components” “front wheel assembly construction” “rear
wheel components” “rear wheel assembly construction”
Special tool
...