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:
Swingarm removal and installation
Removal
Cut the drive chain. Refer to “drive chain replacement” in section 3a .
Remove the rear wheel assembly. Refer to “rear wheel assembly removal
and installation” in section 2d .
Disconnect the rear brake hose from the brake hose
clamp (1).
Remove the brake ho ...
Wheel / tire / air valve inspection and cleaning
Refer to “tire removal and installation” .
Wheel
Wipe the wheel clean and check for the following points:
distortion and crack
any flaws and scratches at the bead seating area.
Wheel rim runout. Refer to “front wheel related parts inspection”
and “rear wheel rela ...
Fuel tank removal and installation
Removal
Keep away from fire or spark.
Spilled gasoline should be wiped off
immediately.
Work in a well-ventilated area.
Remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Take ...