hi all... first post here... I've gotten a 2wd bike for my two little girls. I got it on a trade (traded a old ps3 for it). I did all my checks and I finally figured out it was a few teeth out of time.. when I took tensioner out somebody had welded a nut to the end..... :surprise: I plan to put new tensioner and chain on it but I cant figure out what year timberwolf I have.. and whats yalls opinion on replacing the chain? should I or shouldn't I? thanks. my name is Justin