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 operationSpecifications
Service data
Electrical
unit: mm
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Starter motor components”
Reference: for the tightening torque of fastener not specified in this
section, refer to “tightening to ...
Dtc “c36” (p1764), “c37” (p1765), “c38” (p1766) or “c39” (p1767): secondary
fuel injector circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
Some failure exists in the fuel injector signal in a high
load, high revolution condition.
Injector circuit open or short.
Injector malfunction.
Ecm malfunction.
...
Lubrication points
Proper lubrication is important for smooth operation and long life of each
working part of the motorcycle.
Major lubrication points are indicated as follows.
Note
before lubricating each part, clean off any rusty spots
and wipe off any grease, oil, dirt or grime.
&nbs ...