Ok so another day at the track and my bike stalled I take it back to the truck to see that the coil is about a inch and a half popped up. I pulled it out to find my spark plug with no threads what so ever! Does anyone have and idea why this would happen? Now I have all the threads stuck inside of the motor. is my yz450 putting out this much compression that it popped the plug out? Could the plug be deffective? Something or anything? Please help me out!