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:
Precautions
Precautions for suspension
Refer to “general precautions” in section 00 (page 00-1).
All
suspensions, bolts and nuts are an important part in that it could
affect the performance of vital
parts. They must be tightened to the specified torque periodically and
if the suspension ...
Gear position (gp) switch removal and installation
Removal
Turn the ignition switch off.
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Disconnect the gear position switch lead wire
coupler (1).
Remove the engine sprocket cover. Refer to “engine sprocket r ...
Water hose removal and installation
Removal
Remove the side cowlings. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Drain engine coolant. Refer to “cooling system inspection” in section
0b .
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in se ...