My 2003 Bayou 250 just started having an issue with a mis at mid-full throttle. Start and idles perfect, revs just fine but when in gear and trying to go its popping and missing all over the place. Strange thing is, 2 weeks ago I was riding it and it was perfect, no issues at all. Fuel in tank is relatively new and also has Stabil in it. I checked the carb, all hose connections look good, checked throttle and choke cables, all good. Even checked electrical under seat, all good. Changed the plug for a brand new NGK, no difference. Anyone seen this or have any ideas?