Here is a link with a a picture and explanation of the different circuits and how they work.
The cv carb is the third down.
http://www.bikerenews.com/Stories_Ar...rburetors.html
They are calling the pilot jet the slow jet, and calling the air/fuel screw the idle mixture screw.
Most people think the air/fuel screw only lets in fuel, but as you can see it lets in a mixture of air and fuel.
This one explains the parts you asked about.
http://www.dansmc.com/carbs2.htm