[larry1096]

Or polish them. Use progressively finer sandpaper to clean them up and then polish them.

https://www.stromtrooper.com/threads/76-suzuki-gt500-restoration.435530/page-3

I was going to suggest this. A Scotchbrite will take the scratches out, and going farther (as Rick suggested) would be easy enough, but might make them hard to keep clean.

Larry