1988 Mercruiser 3.0L, M-2 Merc-Carb. Motor pops through the carb and dies at anything below 1500 rpm. Runs like a champion at anything over 1500 rpm. I rebuilt the carb, float level good, used the spring needle, new accelorator pump. Replaced plugs, wires, rotor, cap, points, condensor. <br...
