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:
Steering system inspection
Inspect steering system
initially at 1 000 km (600 miles, 2 months) and every
12 000 km (7 500 miles, 24 months) thereafter
Steering should be adjusted properly for smooth turning
of handlebars and safe running. Overtighten steering
prevents smooth turning of the handlebars and too loose
steer ...
Battery visual inspection
Inspect the battery in the following procedures:
remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Visually inspect the surface of the battery container.
If any signs of cracking or electrolyte leakage from
the sides of th ...
Starter relay inspection
Inspect the starter relay in the following procedures:
remove the starter relay. Refer to “starter relay removal and
installation” .
Apply 12 v to “a” and “b” terminals and check for
continuity between the positive and negative
terminals using the multi-circuit tester. If th ...