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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:

Crankcase breather (pcv) cover inspection
Inspect the crankcase breather (pcv) cover in the following procedures:  remove the crankcase breather (pcv) cover. Refer to crankcase breather (pcv) hose / reed valve / cover removal and installation .  Inspect the crankcase breather (pcv) cover for carbon deposit. If carbon ...

Engine oil
Oil quality is a major contributor to your engine's performance and life. Always select good quality engine oil. Suzuki recommends the use of suzuki performance 4 motor oil or equivalent engine oil. Use sf/sg or sh/ sj with jaso ma in api (american petroleum institute) classification. A ...

Special tools and equipment
Recommended service material Note required service material is also described in the following. Clutch control system components  clutch components Special tool ...

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