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.

|
Exhaust control system operationSwingarm removal and installation
Removal
Cut the drive chain. Refer to “drive chain replacement” in section 3a .
Remove the rear wheel assembly. Refer to “rear wheel assembly removal
and installation” in section 2d .
Disconnect the rear brake hose from the brake hose
clamp (1).
Remove the brake ho ...
Hazard switch inspection
Inspect the hazard switch in the following procedures:
remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the left handlebar switch coupler (1).
(Yellow)
Inspect the hazard switch for continuity with the
tes ...
Front fork removal and installation
Note
the right and left front forks are installed
symmetrically and therefore the removal
procedure for one side is the same as that for
the other side.
Removal
Remove the front wheel. Refer to “front wheel assembly removal and
installation” in section 2d .
...