Well, seeing as I am told I cannot get a new RM 250 I have switched to the Yamaha. I haven't had the YZ 250 but have had 250F's. I have been riding RM 250's for the last 4 seasons and love them and expect the YZ to be just as good (minus some handling characteristics). I ride strickly off-road, technical single track and love the 2 stroke. I am keeping my 06' RM 250 and putting a Rekluse on it for my wife and sending my last 250F down the road. (Can't stand checking valves!!) Let you all know how the 09' is in a couple of weeks.