Does it look like this one? http://forum.ih8mud.com/40-55-series...ml#post3147
387 I've torn my carb apart a hundred times, vacuum tested the passages individually, tested the diaphragm, even tried connect a vaccum pump directly to both carb barrel openings, and came to the conclusion that the vacuum secondary is a myth. Using the paperclip test, it just never opens, but I can still hit...