I've got a Carter 9755s (750) that I'm giving a once-over before it gets put back in service. Almost zero use, it's been sitting on the shelf for ages. It has the spring-loaded needles, float level was right on at 5/16" (per the Carter instruction sheet I found) "With only the weight of the floats on the needles". It also states "Do not press needle into seat when adjusting float lever" but when I do, gently, there's only 1/8" +/- between the float and the gasket. I've got my regulator set...
Carter 750 float level
