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:
Heated oxygen sensor (ho2s) removal and
installation
Removal
Do not
remove the ho2 sensor while it is hot.
Caution
be careful not to expose the ho2 sensor to
excessive shock.
Do not use an impact wrench when
removing or installing the ho2 sensor.
Be careful not to twist or damage t ...
Clutch removal
Drain engine oil. Refer to “engine oil and filter replacement” in
section 0b .
Lift and support the fuel tank with the prop stay.
Refer to “fuel tank removal and installation” in section 1g .
Disconnect the ckp sensor coupler (1).
Remove the clutch cover (2).
...
Rear wheel related parts inspection
Refer to “rear wheel assembly removal and installation” .
Tire
Refer to “tire inspection” in section 0b .
Rear brake disc
Refer to “rear brake disc inspection” in section 4c .
Wheel damper
Refer to “drive chain related parts inspection” in section 3a .
Sprocket
Refer to “drive chain ...