well for one i HIGHLY doubt it is a 250, lol if it was he would want a pretty penny for it because he has a ton of money in the motor, look to see what it has for upgrades, take a compression tester with u, because if hes telling u its a 250 he probably full of sh*t and the bike is broken down and beat up, cleanliness is a big thing too, because if its clean usually he has taken care of it, but to me this guy sounds like a dumbass, take some pics of it and post em up, we will see if it is a good one or not, how much is he asking?