02 or 03
#1
#2
02 or 03
I had a 2 month old green 2002 650 that was stolen and just replaced it with a 2003 red 650. The air box is supposed to be different (don't know how much it helps) and the engine braking is supposed to be improved. It has a different V Twin sticker and also a belt indicator light. Also, the trailer hitch is standard, so that's $50 you don't have to worry about paying. As far as performance, I can't tell about any differences yet.
#3