The first thing I'd ask is how much dirt experience do you have? I generally wouldn't recommend a 450 for a beginning rider. In fact, I wouldn't ever, lol.
The KX generally tends have much more power on tap, but there are certain areas where it would "suffer" to the YZ. I think handling was one of them. Granted if you have the money and can set them up for your abilities, you won't really experience a difference.
As for general issues I can't think of any that come to mind, but if you're getting a used dirtbike there's always lots of things to look at.
BTW are you dead set on 08s? Because the KX450 came with fuel injection in 2009 along with the Honda 450 and from what I hear the FI on dirtbikes is the fucking tits.
|