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:
Rear brake master cylinder assembly removal and installation
Refer to “rear brake hose routing diagram” (page 4a-
2).
Removal
Remove the right side frame cover. Refer to “exterior parts removal and
installation” in section 9d .
Remove the rear brake fluid reservoir mounting bolt
(1).
Drain brake fluid. Refer to “brake fluid replac ...
Engine coolant temperature indicator light inspection
Inspect the engine coolant temperature meter and indicator light (led) in the
following procedures:
remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the ect sensor coupler (1).
Connect a variable resistor (2) ...
Ignition coil and spark plug removal and
installation
Removal
The hot
engine can burn you.
Wait until the engine is cool enough to touch.
Turn the ignition switch off.
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the lead wire couplers (1).
...