Bad Petcock, challenged Needle
Posted: Sat Apr 28, 2012 9:33 am
While technically the Needle's job is to hold back the gas, it doesn't take much to overcome it's shut-off capabilities. I'd do a quick check of the petcock by removing the line going to the carb (not the vacuum line) and if it flows freely, just buy a new petcock and see if your problem goes bye bye.
RZ Rob
RZ Rob