RE: Tuning the OS 46 AX engine
I have 2-FXs and 2 AXs-same easy tuning on all 4-run on test stand, lean out low end slightly and rock on. I have never checked to see how far they are out. I would email Bax on O forum and ask him what to do. He can give you the # of turns, try that, if no go, send it back.