And i also know that at Wide open Throttle there is little or almost no vacuum. So wont the petcock shut off and stop fuel flow?
That would be why the bike can go for a while at WOT then slow down. It just goes until all the fuel from the bowl is gone then it stops. Once at idle it brings all the fuel back in and it can do it all over again.
So i got a really long vacuum line and hooked it to the petcock, and ran it to my mouth (...
![Smile :)](./images/smilies/icon_smile.gif)
So is my petcock bad? or is this just how they work?