My 2005 or 2006 prarie 360 is hard to get moving when I first put it in gear but when I get moving i don't have any problems, then if I stop on level ground and take my hand off the throttle the atv moves by its self,
I'm pretty sure this is the valves
But don't know how to fix it please help me.

 

On the moving while hand it off throttle - sticky cable? too high idle speed? clutches not working properly. clutches are my first thought

Hard to get moving? not sure, clutches?