Decided to change the rear drive fluid - came out looking pretty much the same as what I was putting in after 15,000 miles or so. There was, however a small black smear on the paper towel after wiping the magnetic drain plug (as always).
Bled clutch - fluid coming out was slightly darkened compared to new (after two years). Some fine black particulate in the reservoir.
Bled front and rear brakes. Slight fluid discoloration after two years.
Dismantled shifter mechanism since it had not been serviced in three years and 50,000 miles - still moved freely and some (unhardened) grease remained.
Same with rear brake pivot. Took it all apart and had to wipe off some good remaining grease to re-lube it.
Lubed front brake lever and clutch lever. The grease in the pivots was slightly dried out and hardened.
Also cleaned and lubed the brass bushing on the clutch lever - that was in need of refreshing. Still on the original bushing without much visible wear.
The shifter rubber was looking pretty worn so I finally got around to replacing it. (more cone-shaped than cylindrical)
Changed the air filter - the last two years, I made do with blowing it out with an air hose. It was pretty much in need of replacement.
Overall, I spent a bunch of time doing stuff that could probably have waited. Nice to see that I could get away with more neglect (but wouldn't).
The remaining list includes a WAY overdue valve check. Last one was almost 50,000 miles ago and I set all the intakes to ~75% (on the wide side) of the range so I am not anticipating any major problems. The exhaust valves have never been touched and were pretty in the middle last check. I suspect that this will be the LAST valve check for this engine; especially if there haven't been major changes since last time (169,000 miles on the bike and have only needed to make changes in valve shims one time). Spark plugs and coolant change will be done at the same time.
The one service item that I have never tackled is going to have to be done! The suspension relay arm has had the rear two bearings cleaned and lubed a few times but I have never managed to get the front one done. Although it seems to move OK, I really have to check it out. I bought a low-mileage relay arm on eBay for half the price of replacement bearings, seals and collars so I'm going to feed it some fresh grease and just do a replacement. Maybe I'll find an experienced owner somewhere in the Northeast who can give me a hand with it???
Figure I'll do the swing arm at the same time. It has never been serviced but I don't think there are any issues.
Still have a long list of other stuff, some of which is clearly optional or can at least be deferred until winter. Unfortunately, If I don't schedule some time for it, I will never get it done!