I'll get a picture of the inside later today, the arm doesn't have a hole in it and the 1/16" balls that I bought are a perfect fit, so I'm thinking that's what type it is.
The air cleaner did have foam, but I cleaned it all out. The engine was very clean overall and has excellent compression. I'll open up the gearbox and see what's in there and give it a good cleaning. My "weekend" actually runs into next week, so maybe I have time lol
Thanks for all the input, I'll get further into it maybe this evening, and take more pictures. I'm glad I found this forum, and appreciate the help!!