Hey everyone, I just bought a YZ450, it's an 07. I have searched and found a few threads, but nothing to answer my question, maybe missed it, but are there places where I can learn more about adjusting vavles? My bike didn't come with an owners manual. I am going to order one, would also like to get a shop manual. I am not sure if the prev owner has ever done it, or what to check to see if it needs it. ' If someone could help me out it would be great. Thanks!