Hey guys could use some help here. Have polaris 400 95' dang thing no matter what i doe for adjusting the carb still does same thing. Cleaned it thoroughly. Seems to start fine when choke is open but as soon as i take it off it revs up for a second then just dies. Plus doesnt seem to idle properly. Have adjusted the idle screw and air fuel screw to no end still have same problem. Need help anyone? Anyone?