Wow, this is the first post I've seen with my exact symptoms. Lynn, we've had a lot of rain the past few days, and I've noticed it does it a lot. I can usually kind of ride it a bit and get it to take off smoothly, but not hardly on a wet day. Guess I need to get the ol' flywheel resurfaced. But what's this I hear about them being 'concave', I've heard that you can't get them turned, just cleaned up. Anyone ever heard of that?