The fly wheel problem was from around late 08 or early 09 (can't remember exactly) but I asked my dealer to check it before I picked mine up new. It was one of the faulty motors, there were on a heap of engines, not just your config.
Thing is, how long have you had the issue? How old is the machine?
I would assume that with 100 hrs its newer than 08/09 so that particular fault would of made itself know before now.
That said, may of been made on a Friday!
Be sure to let us know what it was when you find the fix.