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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:

DTC “c13” (p0105-h/l): iap sensor circuit malfunction
Detected condition and possible cause Detected condition Possible cause C13 Iap sensor voltage is not within the following range. 0.5 V ≤ Sensor voltage < 4.85 V Note note that atmospheric pressure varies depending on weather c ...

Starter motor will not run
Note make sure the fuses are not blown and the battery is fully-charged before diagnosing. Troubleshooting Step Action Yes No 1 Shift the transmission into neutral.  Grasp the clutch lever, turn on the ignition switch ...

Throttle cable removal and installation
Removal Remove the air cleaner box. Refer to “air cleaner box removal and installation” .  Remove the right handlebar switch box. Refer to “handlebar removal and installation” in section 6b .  Remove the throttle cables as shown in the cable routing diagram. Refer to “thro ...

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