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 maintenance
The “periodic maintenance schedule chart” lists the recommended intervals for
all the required periodic service work
necessary to keep the motorcycle operating at peak performance and economy.
Maintenance intervals are expressed
in terms of kilometers, miles and mo ...
Chassis bolt and nut inspection
Tighten chassis bolt and nut
initially at 1 000 km (600 miles, 2 months) and every
6 000 km (4 000 miles, 12 months) thereafter
Check that all chassis bolts and nuts are tightened to
their specified torque.
Steering stem
lock-nut 80 n·m (8.0 Kgf-m, 58.0 Lbf-ft)
Stee ...
Excv cable removal and installation
Removal
Turn the ignition switch off.
Remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Connect the special tool (mo ...