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Suzuki GSX-R 1000 Service Manual: 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 actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.

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Suzuki GSX-R. Full close


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Suzuki GSX-R. Full open


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 ex ...

Repair instructions
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Other materials:

Steering tension adjustment
Check the steering movement in the following procedures:  by supporting the motorcycle with a jack, lift the front wheel unit is off the floor 20 – 30 mm (0.8 – 1.2 In).  Remove the steering damper. Refer to “steering damper construction” .  Check to make sure that the cabl ...

Precautions
Precautions for brake system Refer to “general precautions” in section 00 (page 00-1). Brake fluid information This brake system is filled with an ethylene glycol-based dot 4 brake fluid. Do not use or mix different types of fluid, such as silicone-based or petroleum-based. ...

Specifications
Service data Wheel unit: mm (in) Tire Tightening torque specifications Note the specified tightening torque is described in the following. “Front wheel components”  “front wheel assembly construction”  “rear wheel components”  “rear wheel assembly c ...

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