[yorkie_chris]

Old-ish one with the rotax engine. I think 1998 ish.

It kicks up alright, but as it starts to warm up it will not tickover, or if you increase the slide-stop to the point where it will tick over, when you rev it it revs its nuts off and does not drop back to idle quickly at all.

Seems lean, the idle mixture screw does not make much difference that I can figure.

Not sure what the proper oil mixture is, would too much oil give these symptoms? (i.e making it go lean?) It's got 40:1 in it.