arteacher wrote on 06/10/12 at 14:00:15:How fast were you going? At higher speeds the float bowl empties faster and you don't have as much time to put it on reserve and have the float bowl fill. If the engine quits, or splutters enough to seriously reduce the vacuum, the petcock won't work and your float bowl won't fill at all.
This is an intelligent (????) guess, because exactly the same thing has happened to me. One of the reasons why I put the Raptor on.
I too have the Raptor petcock, and I fitted it
before measuring it vs. the OEM item.
Now I have
no idea of how much reserve gas I have (I assume the OEM petcock would ensure about 1 quart...)
Does anybody know +/- how much gas one has with the Raptor petcock ?