I have a complete stock 2005 Recon that has been sitting for about a year. I started tinkering with it the other day and found out the carb was completely gummed up, I cleaned the carb out and it started without any problems and seemed to idle fine, I revved it up and it sounded great. I got on the bike and begin riding through the field as I started progressing from first to second, I noticed the bike was sputtering some, as I got on up into third, fourth, and fifth, the sputtering was really noticeable. I pulled the choke about half closed and everything smoothed out, but as soon as I opened the choke back up the sputtering would start again. I ordered a rebuild kit for the carb and put it on thinking maybe I didn’t get it clean enough the first time, so new jets, and gaskets went on, it made absolutely no difference. I ran it once for just a few minutes with no airbox and it ran fine, with no sputtering, so I cleaned and checked the air filter, put everything back together and it was still sputtering past half throttle. HELP! I am pulling my hair out trying to figure this thing out, the only way it will run correctly is with no airbox or the choke halfway on! Any and all help would be greatly appreciated!