Flapper valve info
Thinking about doing something about the flapper valve.
Firstly before i have to go out and somehow arrange a camera in my air intake does anyone know how it works and at what speeds it operates?
All i know is when you start up it opens up and when you turn the bike off it shuts the flap.
Is there other points at which the flap is in the shut position?
Its vaccum operated so my idea is to just bypass the solonoid so its always open when the engine is on but leave the solonoid plugged in so i get no fault codes.