cooper99 Posted June 9, 2009 Posted June 9, 2009 Hi alli have a cbf600 and i took the side panel of the other day and i noticed a valve on the air intake to the air box, its connected up to a vacuum diaphragm (looks like!!) and the hose disappears somewere down towards the throttle bodys, the other end is connected to a "door" which will close shut when the vacuum sucks hard enough, presumably at high rpms, is this thing strangling what little power i have on my bike or is it an important part to do with getting the right mix of air and fuel,Any help appreciated,Thanks... Quote
Stu Posted June 9, 2009 Posted June 9, 2009 my TL "had" something like this that opened up at 4000 rpm its safe to remove on the TL but not sure on the cbf600 Quote
cooper99 Posted June 10, 2009 Author Posted June 10, 2009 this thing seems to be open when idleing im not even sure if it moves because when im going along i cant see it, i would imagain it opens as the revs get greater not vice versa Quote
kja.busa Posted June 11, 2009 Posted June 11, 2009 Its the flapper valve in the airbox, they can be removed, its a popular mod on a Hayabusa and the TL's as Stu has said, not sure about a cbf600 though, it controls the airflow into the airbox, closes at low revs and opens at higher revs, can be a restriction at high revs too, hence removing them on the bigger bikes. Quote
Stu Posted June 11, 2009 Posted June 11, 2009 i would check it as it should be closed when on tic over Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.