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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:

Loading guidelines
This motorcycle is primarily intended to carry small items when you are not riding with a passenger. Follow the guidelines below to carry a passenger or cargo:  balance the load between the left and right side of the motorcycle and fasten it securely.  Place cargo weight as ...

Rear brake master cylinder parts inspection
Refer to “rear brake master cylinder disassembly and assembly” . Master cylinder Inspect the master cylinder bore for any scratches or other damage. Piston / rubber parts Inspect the piston surface for any scratches or other damage. Inspect the primary cup, secondary cup and dust boot ...

Dimmer / passing light switch inspection
Inspect the dimmer/passing light switch in the following procedures:  remove the air cleaner box. Refer to “air cleaner box removal and installation” in section 1d .  Disconnect the left handlebar switch coupler (1). (Yellow) Inspect the dimmer/passing light switch ...

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