If they truly are, you shouldn't be pressurizing enough to blow fuel through the keyhole, IMO. Maybe there's an obstruction in the internal molded-in portion of the tank vent. Or doesn't the GPz have that? I can't remember... On 4/4/07, Dave Daniels <dwaynedaniels at sbcglobal.net> wrote: > Thanks. I did check the hoses and they are clear. -- Utah Jeff '96 SheePz1100