bike took a dump

was riding the other night in a cow pasture, no water on the surface at all, i was pulling a log and it was pulling it but from a stop it would struggle then it was like i hit the NOS button(which i dont have)and it would just take off, i didnt hit the throttle anymore at all...then later it would sputter like once every 30 seconds without me hitting the throttle down more than i was already, well i hit a small puddle and it just had it in for me and died out and didnt wanna crank back up for anything...i got it back home and drained the carb line out then drained the carb...there was no signs of moisture in the airbox at all...i tried cranking it didnt wanna start, later on in the day i just cranked it for the fun of it and it started, although it died rite away, i got it cranked back up again and i have to hold it at half throttle or more or it will die, there is some smoke coming out of it that is white with a greyish tint to it at times, even holding the throttle at half way it sputters and coughes every few seconds; also at startup when i hit the button and hold my hand near the snorkel it doesnt seem to be sucking in all that much air as when it is usually idling

anyone know what that is? fuel air mixture got missed up? sometrash in the carb that ive drained like twice already? not getting enough air or fuel? starter bad maybe?