I don't know what happened...but it was getting it pretty good, after tinkering with the carb several times, it was getting it in the corners well enough to dig burms and hammer the straightaways! But I was getting it good down a long straight and had it to full speed almost when it just died. It lost all spark again. Absolutely nothing. Still has compression like crazy, it yanked the pull cord out of my hands twice trying to start it. I don't know what it is about this thing but I am getting tired of it, any ideas?

did it pop really loud when it pulled the cord out of your hands??

check the flywheel key

it made no noise other than me calling it names, lol, I let it cool down for a while and it fired right back up, is overheating a sign of lean fuel mixture?? Something is not right with this thing and I cant quite get it yet...

a lean fuel mixture can melt your piston in a heartbeat. I suggest an egt gauge to monitor it. You don't want to go much above 1250 because it will melt around 1300. Jet down if your lean, better to be too rich than too lean. Plugs are alot cheaper than rebuilds.