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:
General description
Combination meter system description
This combination meter mainly consists of a stepping motor, lcd (liquid
crystal display) and leds (light emitting
diode).
The tachometer pointer is driven by the stepping motor.
The lcds indicate followings:
speed, odo / trip 1 / trip 2 / fuel reserve ...
Charging system symptom diagnosis
Condition
Possible cause
Correction / reference item
Generator does not
charge
Open- or short-circuited lead wires, or
loose lead connections.
Repair, replace or connect properly.
Short-circuited, grounded or open
generator coil.
Replace
...
Fuel pump inspection
Turn the ignition switch on and check that the fuel pump
operates for a few seconds.
If the fuel pump motor does not make operating sound, inspect the fuel pump
circuit connections or inspect the fuel pump relay and to sensor. Refer to “fuel
pump relay inspection” and “dtc “c23” (p1651 ...