Tom Ginefra
True Classic
Suddenly I have an extremely loud vacuum leak from this port on the rear of my 28/30 DHTA. I can't recall what may have filled this opening previously. I can find no diagrams of this side of the carb that identifies what this hole is for. Can someone please give me a clue. I've traced all the obvious vacuum lines and they're all accounted for. Is there some king of a plug or screw that's supposed to go in here? Someone please help. (Its the one that's raised slightly off the base immediately to the left of the black shadow in the photo below)