I find the easy way to figure out what stuff is called by Yamaha is to go to a website like stadiumyamaha.com go the the OEM parts catalog for your year make and model. They have great illustrated parts break downs. You can just about tear the bike down and put it back together from the pictures. I think you will find it and invaluable resource. Also get into the tech section of the forum and download the manual and supplement as well as the carb photos. Sooner or later you will need them.
Most important thing is to get together with GapRunr....he knows some roads that will put a smile on your dial. Check out the Turtlepalloza thread.
Welcome to the addiction!!!