Can't find what I need in the fuel section. 2002 Sportster just quit idling and will only run on the enrichener system. After much carb checking carb seems dry. Opening petcock and fuel does not flow out, only a few drops come out. Shouldn't the fuel flow freely? I cold blow back thru the fuel line but it seemed somewhat restricted, and still fuel wouldn't flow. I've already refilled gas tank.:small3d023: Any ideas?