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.

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Exhaust control system operationRear brake pedal construction
Footrest bracket no. 2
Footrest bracket no. 1
Rear brake peda
Footrest holder
Footrest
35 N·m (3.5 Kgf-m,
25.5 Lbf-ft)
23 N·m
(2.3 Kgf-m, 16.5 Lbf-ft)
18 N·m
(1.8 Kgf-m, 13.0 Lbf-ft)
Apply grease.
Apply thread lock to the ...
Rear suspension components
Rear shock absorber
Rear shock absorber mounting nut
Cushion rod
Cushion rod mounting nut
Cushion lever
Cushion lever mounting nut
Swingarm pivot lock-nut
Swingarm pivot shaft
Swingarm pivot nut
Swingarm
Chain case
Plate
Chain adjus ...
Oil pressure regulator / oil strainer
inspection
Refer to “oil pan / oil pressure regulator / oil strainer removal and
installation” .
Oil pressure regulator
Inspect the operation of the oil pressure regulator by
pushing the piston with a proper bar.
If the piston does not operate smoothly, replace the oil
pressure regulator with a new on ...