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 operationStopping and parking
Twist the throttle grip away
from yourself to close the
throttle completely.
Apply the front and rear brakes
evenly and at the same time.
Downshift through the gears
as road speed decreases.
Select neutral with the clutch
lever squeezed toward the grip
(disenga ...
Rear brake hose removal and installation
Removal
Drain brake fluid. Refer to “brake fluid replacement” .
Remove the rear brake hoses as shown in the rear brake hose routing
diagram. Refer to “rear brake hose routing diagram” .
Installation
Caution
the seal washers should be replaced with
new ones to prevent ...
Iap sensor removal and installation
Removal
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Disconnect the coupler (1) and vacuum hose (2).
Remove the iap sensor (3) from the air cleaner box.
Installation
Install the iap sensor in the reverse ord ...