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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:

Conrod crank pin bearing inspection and selection
Refer to “engine bottom side disassembly” (page 1d- 49). Refer to “engine bottom side assembly” . Inspection Inspect the bearing surfaces for any signs of fusion, pitting, burn or flaws. If any, replace them with a specified set of bearings. Place the plastigauge axially along ...

Handlebar removal and installation
Removal Remove the following parts from the left handlebar.  left handlebar switch box (1)  handlebar balancer (2)  grip rubber (3)  clutch cable (4) Remove the following parts from the right handlebar.  right handlebar switch box (5)   ...

Fuel tank removal and installation
Removal Keep away from fire or spark.  Spilled gasoline should be wiped off immediately.  Work in a well-ventilated area. Remove the front seat. Refer to “exterior parts removal and installation” in section 9d (page 9d- 6).  Take ...

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