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Suzuki GSX-R 1000 Service Manual: 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 exhaust pipe. Excva is mounted inside of the right frame. The excv is operated by the excva via the cables. This system is designed to improve the engine torque at low engine rpm.

Suzuki GSX-R. Exhaust control system description


  1. Exhaust control valve actuator (excva)
  2. Exhaust control valve (excv)
General description
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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 ac ...

Other materials:

Gearshift lever height inspection and adjustment
Inspect and adjust the gearshift lever height in the following procedures:  inspect the gearshift lever height “a” between the lever top and footrest. Adjust the gearshift lever height if necessary. Gearshift lever height “a” standard: 65 – 75 mm (2.6 – 3.0 In) Loosen the l ...

Front turn signal light removal and installation
Removal Remove the screw. Disconnect the front turn signal coupler (1).  Remove the turn signal light assembly (2). Installation Install the front turn signal light in the reverse order of removal. ...

Noise emission control system description
Tampering with the noise control system prohibited: local law or federal law prohibits the following acts or the causing thereof:  the removal or rendering inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design in ...

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