05 king cat 900 idles low on hot days

So i live at about 1500 altitude and I got a 05 king cat on cold days I start it and it idles at 2000 rpm till it warms up and stay about 1600 rpm I ride when I stop it takes a minute or two but come back down to 1600 from 25-3000 rpm but on warm days like -9 -5 around there it will start first pull on first start but after the engine warms up it gets to be like 3 pulls and will idle at 1000 rpm till I hit the throttle and it will go back to 1500ish what can I do to make it idle properly at the warm weather days (between 1600-2000) thx

05 king cat 900 idles low on hot days