I know all my buddies who turned theirs into full race bikes tossed all that shit.
...
Ill remove the central inlet ram air flapper when I get a pipe.
I think ill leave the sensor/valve plugged and just remove the door and the lever that closes it.
I phoned to a kawa dealer, and he said me that a pipe that terminated to the canister came from butterfly/ignition; the canister could gather the vapors of gasoline from tank and with the depression valve the ones from ignition.
He said that could be useful to retain that valve.
The other one on the left, that is very similar, is dedicated to the intake air duct.
The valve could be removed.
It seems that the flapper is moved by vacuum motor started by the valve; it is not an electrical flupper, but a pneumatic one.
Both errors, if present, do not block/halt the bike; btw it's necessary to remove any dashboard error because they could hidden important ones.
More in deep turning on the key does not necessarly show the errors, they could appear in the future.
All these are hypothesys, do you have any idea of the real scope/behaviour of these valves ?
gino