I work on a lot of these engines. Two stroke engines have a problem depending on the oil you use. Your probably better off just to use regular motor oil as a lubricant or avoid ethanol. Also, never let the gas sit in the unit as other’s have said. Myself, I avoid ethanol for 2 strokes...
And never, never put it in your ultralight aircraft.
Use motor oil as a two stroke premix?
I hope you carry lots of liability.