I am starting a build putting 1983 200E engine in my 1983 200X. I have a lifan 200 in it now. I have been running it for the last year. It runs good but I feel he need to get a Honda engine back in it. The lifan was a good temporary way to use the X because the original engine was in need of a overhaul. I was spoiled by the electric start. I looked for a 200M engine but they are hard to find at a reasonable price.
It looked like the 200E engine would be the way to go as far as price and availability goes. It will be more work to install because of the hi lo gearbox. I found a 1983 200E engine in very good shape with all electric components and wire harness for $280.00.
I am posting some photos of progress so far (if I remember how to post photos) I will update as I go. I have a good plan to get the hi lo gearbox to fit.