This has been a fun project. I'm keeping costs down my only replacing items that are either broken, or missing. Everything else has been bead blasted, sanded, bored, polished, scrubbed, then painted to cover the all the old rust damage.
This bike was a rusted mess when I got it. For example I had to pry off the chain off the sprockets because it was rusted solid around the sprockets.
If you find a project bike, stay away from bikes that are literally basket cases.
The grief never ends. I've been very lucky to find a Yahoo group that is dedicated to the MR 50. They have helped me out a lot. But we had run out of ideas for my particular problem. That's why I posted here in the brain trust know as DRN.