majmaj 10 Posted October 18, 2012 (edited) Hey Gents, first post on here and I hope I can get some help. I just bought a 2006 Arctic cat 400 auto. Not sure how it was working before as I bought it at an auction. 1- Start no problem 2- Replace oil, oil filter and fuel (just for maintenance and used ATV oil) 3- runs good (no engine noise) Here is the problem "I can't go over 30 KM" I can go and drive in Low, Neutral and reverse no problems. The fuel pump make a little knock noise. Would it be possible it need a new pump? Dirty carburator?? Just noticed when I went for a drive that it doesn't change gear. Goes to 4000 rpm and stays there. let me know what you think Thanks Edited October 18, 2012 by majmaj more info Share this post Link to post Share on other sites Like what you are reading? Please help us by sharing this content.