Hornet2008
Well Known Member
Hi All,
My IO 320 D1A idles roughly and there is no rise in RPM moving to idle cut off. This, and black smoke on start, indicate it is running too rich idles at 700 RPM once warmed. I've read on carbs engines the mixture adjustment needle is turned out one to one and a half turns in most cases from closed. I have moved the star wheel in the lean direction a number of clicks (10) and still have rough idle and no rise. Do I need to make several turns as opposed to moving it clicks. Anyone able to give me a starting distance between the two blocks where the star wheel is positioned.
My IO 320 D1A idles roughly and there is no rise in RPM moving to idle cut off. This, and black smoke on start, indicate it is running too rich idles at 700 RPM once warmed. I've read on carbs engines the mixture adjustment needle is turned out one to one and a half turns in most cases from closed. I have moved the star wheel in the lean direction a number of clicks (10) and still have rough idle and no rise. Do I need to make several turns as opposed to moving it clicks. Anyone able to give me a starting distance between the two blocks where the star wheel is positioned.