The excs is operated by the signal supplied from the ecm. The open/close operation of the excv is performed by the excva which is controlled by the ecm by changing the current direction of the actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.
Full close

Full open

Exhaust control system descriptionCarrying a passenger
Carrying a passenger, when done
correctly, is a great way to share
the joy of motorcycling. You will
have to alter your riding style
somewhat since the extra weight
of a passenger will affect handling
and braking. You may also need
to adjust tire pressures and suspension;
please refer to the ...
Schematic and routing diagram
Fuel tank drain hose and breather hose routing diagram
Fuel tank water drain hose
Fuel tank breather hose no. 1
Fuel tank breather hose no. 2
Fuel tank breather hose no. 3
3-Way joint
Frame
White marking
Set the
hose end to the root of tank nippl ...
Fuel line inspection
Inspect fuel line
every 6 000 km (4 000 miles, 12 months)
Inspect the fuel line in the following procedures:
lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Inspect the fuel feed hose (1) for damage and fuel
leakage. ...