Thanks for all the help, I didn't literallt mean that the carb was drawing fuel....more acurately I guess I should have said the fuel wasn't being drawn into the engine/ carb....I know it uses a diaphram....all the real specifics I don't know...I did know that yo needed to have that plugged I have extra tygon...heck I would like to get together just to REALLY know how these work in detail..I do know the basics and could survive on that but you seem to have a broad sapn of knowledge on these...I will send you a PM later on with my contact info!