Quick question, why does my atv take 30 min to warm up? I have to do 5 minutes of idling or driving slow, then shut it off for 10 minutes, drive it for 15 minutes and after that it gets good. If i do not do this it will barely pull its own weight. Its a 50cc.

 

Seems like it is running lean, check the plug colour after it has run for that half hour, death white on the nose and surround would indicate a weak mixture, probably a partly blocked jet. Clean the jets and the passageways out with compressed air, re-assemble, and see how you go.