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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 jet removal and installation
Piston cooling oil jet Removal Remove the engine assembly. Refer to “engine assembly removal” in section 1d .  Remove the crankshaft assembly. Refer to “engine bottom side disassembly” in section 1d (page 1d- 49).  Remove the piston cooling oil jets (1) from the upper cra ...

General description
Engine coolant description Caution  use a high quality ethylene glycol base anti-freeze, mixed with distilled water. Do not mix an alcohol base anti-freeze and different brands of anti-freeze.  Do not put in more than 60% anti-freeze or less than 50%. (Refer ...

Oil pan / oil pressure regulator / oil strainer removal and installation
Note the oil pan/oil strainer/oil pressure regulator cannot be serviced with the engine installed in the frame. Removal Remove the engine assembly from the frame. Refer to “engine assembly removal” in section 1d .  Remove the plate (1).  Remove the oil pan ...

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