I picked up a 99 or 2000 wr400f the other day from a guy at work. He forgot the exact year but thinks it's one of those years and Oklahoma didn't title dirt bikes back then. He gave me two sets of front forks and all the riding gear I needed. I got it for 1500 bucks, hope I didn't get ripped off. It runs good and has more power than I need, but I do have a question about the idle. It seems to idle high all the time. Is there something to look for other than a vacuum leak. It does have an after market pipe on it and I don't know he re jetted it or not. Sorry but I am new to dirt bikes so any help would be great.