1995 evinrude oceanpro 200 spitting gas (Backfiring, stalling) in one cylinder. Changed reed valves, all gaskets, got spark, changed power pack, plugs wires, rebuilt carbs, adjusted needle, did it all I think? You can see a build-up of gas at the bottom of the barrel on the carb. No others do this. Exc
hanged carbs and does the same only on that cylinder, Had a marine motor mechanic take apart and look and put it back together with new gaskets and does the same. Thanks for replies in advance.