Well Ive never heard it run myself. All I know is I bought it as is.
Minimal rust, I rode it down a hill into my backyard when I brought it home and everything is free. The rear brake works fine too.
actually here is the Ebay site from when I bought it.
But looking in your profile, Michigan is a hell of a long way away for a Fa50.
I assume someone would be helping you. Are you just 15?