i have a 2008 rzr that will start for about two seconds and then go dead. whenever i try to crank it back up all it wil do is turn over and not start. it sounds like it loses compresion but it is still pushing air out of the exhaust. it only does this in the winter when it is cold. during the warmer months it has never done this. i have checked the valves and everything in the head all of that is ok. has any one else ever run into this?[font=Arial:5dd91077aa] [/font:5dd91077aa]