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 descriptionPiston ring removal and installation
Removal
Remove the piston. Refer to “engine bottom side disassembly” .
Carefully spread the ring opening with your thumbs
and then push up the opposite side of the 1st ring to
remove it.
Note
do not expand the piston ring excessively
since it is apt to be broken down. ...
Fuel pump components
Fuel level gauge
Fuel pressure regulator assembly
O-ring
Joint
Fuel pump
Fuel pump case
Fuel mesh filter
10
N·m (1.0 Kgf-m, 7.0 Lbf-ft)
Apply engine oil.
Apply grease.
Do not reuse.
...
Radiator reservoir tank removal and
installation
Removal
Remove the right side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the reservoir tank inlet hose (1) from the
reservoir tank (2) and drain the engine coolant.
Remove the reservoir tank (2).
Disconnect the reservoir tank ove ...