atc110.... just sits and then idles real high?

[dirtbike77]

what could cause this to happen? atf irst itll idle fine then itll start real high..

[Instinctz]

Well mixing air to much with gas will, air leeks can cause this.
Another thing is just running low on gas.. check that first.
Then check your idle set screw, first screw it all the way in, then turn it out about one and a ahlf turns, then try and start it, turn it 1/4 turn each time to find when it sounds the best.