stripped head stud

So I’ve got a 66/80cc Chinadoll with a stock piston that I’ve windowed out like LA HoverBikes just to a curtain point I liked within the casting, a 2 inch miaowa reed valve kit and an HP carb with a 80 size jet installed. I’ve got a range of #50-85 I’ll say this as a start the bike ran pretty...

Ok so my bike was running great and then shut it down went in for a snack and then when I went to fire it back up it won't start. Found out i have no spark so I got new plug and wire on the way and that's problem #1. Second issue I had was I could feel puffs of air on my leg as I tried to...