Rohan said:New chain and a lick of paint, and ride off into the sunset !?
It is going to take a lot of work to get it pristine though....
Try (gently) some steel wool on some of the less rusty chrome bits, sometimes its only a rust stain that will polish off.
Cheers.
This is bad advice even if you use it gently :!:
Do NOT use steel wool on chrome plate :!:
Always use something SOFTER than chrome that will not scratch it, like a brass brush with plenty of WD40.
Strange that there is no carbon in the exhaust port :?: