first off don t have all the info yet but will fill you guys in on what i know. i have an 08 teryx that has 77 hrs on it and is bone stock. about three months ago i was driving out to the store running about 45mph and it just lost all power i could go about 25mph So i thought it was the air filter so i bought a new one and the old one was pretty dirty. so changed it and it was like new again. it was like that up until about 2 weeks ago when my brother used it and said it was doing the same thing again so i went bought new spark plugs thinking it was it. but got on it to use( not changing the plugs yet just wanted to see how bad it was doing the lost of power again) and it would barely start then once i got it started it ran worst tan ever no power whats so ever and it kept on dying. so i called the dealer for so advice and he said that the carbs were probably dirty so i loaded it up took it to them for them to check it out. told them when i dropped it off it felt like it was only running on half a motor. called them today for an update and they told me it wasnt the carbs that one cylinder has no compression and they would have to tear into it more to diagnose the cause. so that is where i am at right now will update you guys when i get updated. but if anyone has had this problem somthing like or has any ideas let me know because im thinking that this might get a little costly.