THe ring wrapped itself around the roll pin on the piston, then welded itself into a tiny little spiral. It was tinged blue and purple. Pretty cool really, except that it scored the cylinder quite a bit. It ran though. Now it won't, even though it has more compression.
It just won't run, even though everything is working individually. Maybe a magneto is shorting out. I had suspected something like that, even though the magnetos all look nice and shiny.