When did they lay the engine down and around? A guy I know has a brady new 2007 YZ450f that he is wanting to sell. Road five times. Seriously, only five times around a farm. Bone stock everything including tires. SItting in his garage. I have a 2003 YZ250f that I like good enough. Some guys tell me I should get a 450. I'm 50 yers old and ride mine pretty dang good. I'm 190lbs. The guy selling it is like close to 300lbs. He wanted to try a dirt bike as it seemed fun for us and other to do on the weekend. So, he bought this one brand new in 2008. Found out riding dirt bikes is a lot of work ' So, asking $3800, I'd get it for less. But is the 2007 year considered a good one for yz450f? CooHead.