So, not really up on Blue dirt bikes.. Know what I've read in old reviews, know what I've seen in this forum. But dont know what I dont know. Looking at a 2006 YZ450F tomorrow.. Any systemic issues with this MY YZ450F? To be used as a MX bike..., will have suspension set up for the intended rider. What other know "have to's" for this bike? Any Super picky maintenance issues? re occurring or one time reliability fix's? Why should I not buy a 2006 YZ450F? (other then that means you'll have yet another MOD hanging around in this forum ) Thanks in advance.