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 descriptionThrottle cable routing diagram
Throttle cable no. 1
Throttle cable no. 2
Clutch cablev
Front brake hose
Pass
the throttle cables in front of the front brake hose.
Pass the
clutch cable above the right air intake pipe.
Clamp the
clutch cable at the white taping point and m ...
Starter torque limiter inspection
Removal
Remove the clutch cover. Refer to “clutch removal” in section 5c .
Remove the washers (1), starter idle gear no. 1 (2)
And no. 2 (3).
Remove the starter idle gear no. 2 Bearing (4), shaft
(5) and washer (6).
Hold the starter clutch with the special tool an ...
Pair system inspection
Pair hose
Lift and support the fuel tank with the prop stay.
Refer to “fuel tank removal and installation” in section 1g .
Remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Inspect the pair hoses for wear or damage. If it is worn or da ...