I got it figured out, When the recoil self destructed it sent pieces of plastic flying around inside the housing. One of the larger pieces caught on the rotating flywheel and bent the trigger coil bracket so it was way out of gap. I straightened it, checked the gap and it fired right up.This machine has always ran excellent, today I started it and it was making a horrible noise in the recoil, shut it off immediately. Took recoil cover off, removed the recoil, used a magnet and a rag to clean up everything inside, put cover back on and will not start, cranks over. could something be shorting out. I didnt take the flywheel off so maybe possible something could be behind there. there was a lot of metal shavings inside the cover and what looked like pieces of a spring, "assuming spring is from recoil" but not the big recoil spring. If I turned off the ignition key while cranking it backfired a couple times.