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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:

Rear brake master cylinder components
Reservoir cap Plate Diaphragm Reservoir tank Reservoir hose Brake hose Brake hose union bolt Brake hose connector Master cylinder Spring Piston/cup set Push rod Dust boot 23 N·m (2.3 Kgf-m, 16.5 Lbf-ft) 10 N·m ...

Starting off
Warning Riding this motorcycle at excessive speed increases your chances of losing control of the motorcycle. This may result in an accident. Always ride within the limits of your skills, your motorcycle, and the riding conditions.   Warning Remov ...

Cylinder inspection
Refer to “engine top side disassembly” . Refer to “engine top side assembly” . Cylinder distortion Check the gasket surface of the cylinder for distortion. Use a straightedge and thickness gauge. Take clearance readings at several places. If any reading exceeds the service limit, replace t ...

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