not sure what I have wrong. Stator plate seems to be fixed. Running with the old one fine now. 2 stroke engines can run backward if the timing is off a bit. plug fires too soon and piston goes back down before it crosses TDC. no valve timing to screw up, so it runs.
Found this old post. For future reference I tried the PW50 plate on QT50. The engine ran backwards. I think the ignition timing is just a bit different