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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:

Water hose inspection
Inspect the water hoses in the following procedures:  remove the side cowlings. Refer to “exterior parts removal and installation” in section 9d (page 9d- 6).  Check the water hoses for crack, damage or engine coolant leakage. If any defect is found, replace the water hose wi ...

Tp sensor adjustment
Inspect the tp sensor setting position and adjust it if necessary in the following procedures:  connect the special tool (mode select switch) to the dealer mode coupler. Refer to “self-diagnostic procedures” in section 1a . Special tool : 09930–82720 (mode selection switch) Warn ...

Engine oil and filter replacement
Replace engine oil initially at 1 000 km (600 miles, 2 months) and every 6 000 km (4 000 miles, 12 months) thereafter Replace oil filter initially at 1 000 km (600 miles, 2 months) and every 18 000 km (11 000 miles, 36 months) thereafter Oil should be changed while the engine is warm. Oil filt ...

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