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 operationRod guide case tightening torque
Tighten the rod guide case in the following procedures:
measure the effective length l of the torque wrench.
Calculate the reading torque on the torque wrench by
use of the formula shown below.
Special tool
(a): 09940–84710 (rod guide case
wrench)
T: reading torque on the torq ...
Tp sensor adjustment
Inspect the tp sensor setting position and adjust it if
necessary in the following procedures:
connect the special tool (mode select switch) to the dealer mode
coupler. Refer to “self-diagnostic procedures” in section 1a .
Special tool
: 09930–82720 (mode selection switch)
Warn ...
Drive chain
This motorcycle has a master link
type drive chain. We recommend
that you take your motorcycle to
an authorized suzuki dealer if the
drive chain needs replacing.
The condition and adjustment of
the drive chain should be checked
each day before you ride. Always
follow the guidelines for ins ...