Picked up a 2006 WR450F today. Only had 40 very light miles on it. Dang near showroom condition. However, it's been sitting for the last two years (indoors). Same gas. I've been lurking around here for a while and am up on all the needed mods. Since I'll be swapping brass, I'll get the old gas out and get the carb, etc cleaned out. I'm going to change out the oil, check the valves, etc. I was wondering about the coolant. Should I go ahead and flush or is what's in there ok? Rubber on the tires seems to be fine (not dry rotted). Any other things that I should look for/take care of in my initial go through! Look forward to hanging around here. I own several others Yamaha's (YZ125, YZ250, FZ1) and proud to have a thumper back in the coral!