By the way, I’ve been playing around with my daughter’s rock polisher for cleaning up rusty or tarnished hardware. A scoop of “chick grit” (which I believe is crushed granite) and a bit of water and a day or two in the tumbler can work miracles.
I had previously messed around on some random rust bolts testing various media. The chick grit seems to work about the best for cleanup. I think a guy could do some fancier polishing with finer material, given some experimentation and time.
Parts from this carb like the choke/throttle bracket and the lower pump arm linkage were fairly rusty and come out with a nice clean satin finish. I also did the screws that attach the body together.
