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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.

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Suzuki GSX-R. 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 ...

Repair instructions
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Other materials:

Damping force adjustment
The rebound and compression damping force can be individually adjusted by turning the respective adjusters. The rebound damping force adjuster 2 is located at the top of the front fork. The compression damping force adjuster 3 is located at the bottom of the front fork. To adjust the da ...

Engine bottom side assembly
Assemble the engine bottom side in the reverse order of disassembly. Pay attention to the following points: Note apply engine oil to each running and sliding part before reassembling. Breather oil return plate When installing the breather oil return plate (1), apply thread loc ...

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 ...

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