the best advise I would give you is to work on 1,75 turns out from lightly seated.
it might be a rich setting, but at least there is no risk of running lean.
making adjustments should be 1/8 at a time.
so divide the circle in 8 pieces and make adjustments at one piece at a time.
the last thing, the recommended setting is only a base setting/ and also a safe setting.
something else.
on the two stroke model airplane engines we would when running a bigger prop have a richer mixture.
a smaller prop a leaner mixture.