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:
Engine coolant recommendation
Engine coolant
Use an anti-freeze/engine coolant compatible with an
aluminum radiator, mixed with distilled water only.
Water for mixing
Use distilled water only. Water other than distilled water
can corrode and clog the aluminum radiator.
Anti-freeze / engine coolant
The engine coolant perfo ...
Engine sprocket removal and installation
Removal
Remove the gearshift link arm (1) from the gearshift
shaft.
Note
mark the gearshift shaft head at which the
gearshift link arm slit set for correct
reinstallation.
Remove the speed sensor (2).
Remove the engine sprocket cover (3).
Support the ...
Transmission related parts inspection
Refer to “transmission removal” , “transmission installation” and
“countershaft gear / driveshaft gear disassembly and assembly” .
Gearshift fork to groove clearance
Note
the clearance for each gearshift fork plays
an important role in the smoothness and
positiveness of the ...