Rio

Hello guys, I'm new here. I just bought my first bike, an '86 FZ600. It needs some help. Anyways, I was wondering where I am to find parts for this thing? Specifically two of my choke plungers are broken off, So at least I need two of those and probably gaskets for when I tear my carbs open. Another thing ive been wondering is, If my choke plungers are down, as in into the carbs, is that choke on or off? Thanks, Nick