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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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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:

Specifications
Service data Thermostat + radiator + fan + coolant Tightening torque specifications Note the specified tightening torque is described in the following. “Water hose routing diagram”  “water pump components”  “water pump construction” Reference: for the tig ...

Clutch installation
Install the primary driven gear assembly (1). Caution  if it is difficult to install the primary driven gear, rotate the crankshaft.  Be sure to engage the oil pump drive sprocket with the primary driven gear. Install the spacer (2) and bea ...

Cylinder head cover related parts inspection
Refer to “engine top side disassembly” . Refer to “engine top side assembly” . Refer to “cylinder head cover disassembly and assembly” . Cylinder head cover Clean and check the gasket grooves “a” and pair reed valve mating surfaces “b” of the cylinder head cover. If there is anything unu ...

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