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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:

Front brake pad replacement
Loosen the pad mounting pins (1).  Remove the brake caliper by removing the caliper mounting bolts (2).  Remove the pad mounting pins (1), brake pads and spring. Caution do not operate the brake lever while the pads are removed.   Note when ...

Steering stem bearing removal and installation
Removal Remove the steering stem upper bearing and steering stem lower bracket. Refer to “steering / steering damper removal and installation” .  Remove the steering stem lower bearing inner race using a chisel. Remove the steering stem upper and lower bearing races using ...

Clutch control system components
Push rod Clutch release camshaft Clutch release arm Clutch cable 1 N·m (0.1 Kgf-m, 0.7 Lbf-ft) 6 N·m (0.6 Kgf-m, 4.5 Lbf-ft) 10 N·m (1.0 Kgf-m, 0.7 Lbf-ft) Apply grease Do not reuse. ...

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