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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:

Location of parts
ciutch lever  left handlebar switches indicator lights tachometer ignition switch front brake fluid reservoir  right handlebar switches throttle grip  front brake lever  fuel tank cap front suspension spring pre-load and rebound damping force ...

Engine assembly installation
Install the engine in the reverse order of engine removal. Pay attention to the following points:  before installing the engine, install the collars (1). Before installing the engine, install the engine mounting thrust adjusters (2). Gradually raise the rear side of ...

Precautions
Keep away from fire or spark.  During disassembling, use care to minimize spillage of gasoline.  Spilled gasoline should be wiped off immediately.  Work in a well-ventilated area.  For e-33 models, drain fuel from the fuel tank before ...

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