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:
The sport of motorcycling
Your motorcycle and this owner's
manual have been designed by
people like you who enjoy motorcycling.
People become motorcyclists
for many reasons. For
starters, street riding is fun and
invigorating. But no matter why
you became a motorcyclist, or
how experienced you are, you will
eventu ...
Camshaft inspection
Refer to “engine top side disassembly” .
Refer to “engine top side assembly” .
Camshaft identification
The exhaust camshaft has the embossed letters “ex”
and the intake camshaft has the embossed letters “in”.
Cam wear
Check the camshaft for wear or damage.
Measure the cam height “a” w ...
Cmp sensor removal and installation
Removal
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Remove the pair control solenoid valve. Refer to “pair control solenoid
valve removal and installation” in section 1b .
Disconnect the coupler (1) and remove the cmp
se ...