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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:

Oil cooler / oil cooler hose inspection and cleaning
Refer to “exterior parts removal and installation” in section 9d . Oil cooler hose inspection Inspect the oil cooler hoses for any damage and oil leakage. If any defects are found, replace the oil cooler hose with a new one. Oil cooler inspection Remove the oil cooler guard (1). ...

Cam chain tension adjuster inspection
The cam chain tension adjuster is maintained to proper tension automatically.  Remove the cam chain tension adjuster. Refer to “engine top side disassembly” .  Holding the cam chain tension adjuster as shown in the figure, compress the plunger by turning the adjuster body unt ...

Most accidents can be avoided
The most common type of motorcycle accident in the u.S. Occurs when a car traveling towards a motorcycle turns left in front of the motorcycle. Is that because other drivers are out to get motorcyclists? No. Other drivers simply don't always notice motorcyclists. Ride defensively. Wise mot ...

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