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 operationPillion footrest construction
Pillion footrest
Spring
Ball
E-ring
Washer
O-ring
Footrest pin
Apply grease.
Do not reuse.
...
Water pump disassembly and assembly
Refer to “water pump removal and installation” .
Disassembly
Remove the air bleeder bolt (1) if necessary.
Remove the water pump case screws.
Remove the o-ring (2).
Hold the impeller (3) with water pump pliers and
remove the impeller securing bolt (4).
Remove t ...
Inspecting the drive chain
When inspecting the chain, look
for the following:
loose pins
damaged rollers
dry or rusted links
kinked or binding links
excessive wear
improper chain adjustment
If you find anything wrong with the
drive chain condition or adjustment,
correct the pr ...