ok so when i start my bike i put iti on full choke and then it has to stay onat leastchoke until i start riding or it will die. once i get about 5 minutes down the road it idles alright at around 1500 then about 5 minutes after that the idle has worked its way up to about 3000 and stays there pretty well jumping a little bit.if i ride for like half an hourthe idle goes up to like 5000 and wont go down until it has had time to cool off. i have cleaned the carbs and thought i did good but will try again if it is deemed neccesary. any advice on this issue would be apprecated.

thanks in advance