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:
Clutch cable removal and installation
Removal
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the clutch cable from the clutch lever.
Refer to “handlebar removal and installation” in section 6b .
Remove the clutch cable as shown in the throttle cable ro ...
Ckp sensor inspection
Refer to “electrical components location” in section 0a .
Ckp sensor peak voltage
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Disconnect the ckp sensor coupler (1).
Note
be sure that all of the couplers are connect ...
Right handlebar
Engine stop switch 1
"" Position
The ignition circuit is off. The
engine cannot start or run.
"" Position
The ignition circuit is on and the
engine can run.
Front brake lever 2
Apply the front brake by squeezing
the front brake lever towards
the grip. The brake ligh ...