Picked up my Artic Cat 400 today at Lincoln Power Sports. The metal shavings were from the magnet on the flywheel coming apart, so in didn't need rebuilding, just replace, repair and clean. It was still $1000 but not as bad as I had anticipated. It has a 30 day warranty so I am going to run the heck out of it this weekend at the farm and make sure they did a good job. I'm sure it will be okay, they gave me the old flywheel and all the pieces that were floating around when it came apart back to me. Back in business