Ok thanks, I'll do that. Except ever time I talk to Rick he keeps trying to talk me into getting the 414cc bore kit done to my sons Trailboss. So far I keep talking myself out of it. But one of these times he's going to accomplish it. It sounds good, and my son wants it done. But I'm having a hard time talking myself into spending another $1000. I just bought the bike 6 months ago. And then there is the wife. If your married you understand, if not your time is coming. But I am going to change the spring for now. Maybe that will ease my sons desire for more power. Thanks for the tip.