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:
Lubrication points
Proper lubrication is important for smooth operation and long life of each
working part of the motorcycle.
Major lubrication points are indicated as follows.
Note
before lubricating each part, clean off any rusty spots
and wipe off any grease, oil, dirt or grime.
&nbs ...
Pair system inspection
Inspect pair system
every 12 000 km (7 500 miles, 24 months)
Inspect the pair (air supply) system periodically. Refer to “pair system
inspection” in section 1b .
Throttle valve synchronization
Inspect throttle valve synchronization
initially at 1 000 km (600 miles, 2 months) (e-33 only)
and ...
Drive chain adjustment
Inspect the drive chain slack
before each use of the motorcycle.
Place the motorcycle on the
side stand. The drive chain
should be adjusted for 20 - 30
mm (0.8 - 1.2 In) of slack, as
shown.
Warning
Too much chain slack can
cause the chain to come off the
sprockets, resul ...