Rob, Thanks for the link. Interesting. I find that my R 65 was manufactured in 12/83. The engine number is located on a polished surface on the left front of the engine, not near the oil filler hole. This is what they started to do in 1984. Also, the frame and engine numbers do not match even though I was pretty sure the entire bike/package is original as I know its history of ownership. If you can give me any info on this, it might qwell my anxiety.