Reply To: Omc 22 cubic inch 25 hp differences

[billw]

We would sometimes eliminate the bypass cover nipple and route the hose up to the carb. We’d take a press-in hose nipple and drill a hole in the top of the carb for it, right behind the throttle plate area. They didn’t run exactly like a watch but they were better than the OEM idle. We were also then able to adjust the idle mixture enough so that both cylinders were, at least even. I don’t remember if that was OMC’s idea or ours?

Long live American manufacturing!