sorry guys, I know it's not a quad, but i just bought a used '02 Honda XR80 dirtbike for my son and it keeps stalling at low to medium RPM. I chat a lot on this forum, and others suggested posting the Q to you guys. OR, please point me to a good dirtbike forum... but the Q is pretty simple.

i was gonna start with a carb cleaning. how many turns is the mixture screw supposed to be set at?

thanks.