Well, under the assumption that I had all the parts I needed to reinstall the swing arm on my 750K5 I started to work on that. After discovering that my swing arm bolt was bent and I likely needed a replacement I decided to pop the valve cover off a K4 motor I picked up a few weeks ago.
This engine only has ~6K miles on it and at some point I'll install it in place of my original engine which has a cracked & repaired case. I want to replace some gaskets and get it cleaned up and painted.
Anyway, as I hoped the top end looks super clean. I can still read the ink-stamped date code on the inside of the valve cover.