I am new here - don't even have enough posts to edit - but I'm starting a project thread to provide motivation to get this thing done.
A rehash of my 'new member' post: I've owned this 1991 K75S since 1995 when I picked it up at the local dealer with 2500 miles on the clock. I put the bags and tank bag on it. Also added the Fox TC in about 1996. The bike has 75000 miles on it now.
My plan is to go through it pretty completely. New SS brake lines, rotors and pads, splines lubed, probably a new drive shaft - DS splines are worn but the final drive splines looked OK last time I was in there. I've already done some stuff like new spark plugs and air filter. I plan on replacing coolant and fuel lines. Rear master cylinder is leaking. Small drip from tranny. And a bunch of things need to be improved: rattles, non-solid fairing mounting, saddlebag mounts are worn, leans over too far on side stand, add conspicuity lights like Skene, etc.
I'm not a mechanic by any means but I've done a bunch of stuff on bikes - like clutch spline lubes, valve check/adjustment, fork seals, suspension setup and regular maintenance stuff. We don't have a dealer close to central New York so I've had to learn to be self sufficient since we own 5 BMWs.
Pictures below are the bike ready for a cross country trip starting in San Diego in 2017, at about 70000 miles. Then a couple of the bike as it sits this morning. I staged the wheels and some of the stuff I'm painting. The black parts are getting shot with appliance enamel. I like how the forks came out. The exhaust shield is glossy but better than rust. I'm not happy with the wheels - but they are just going to get covered with brake dust anyway.
Oh, I want to do something with the seat. I have always loved that BMW by Corbin saddle. I've been using RTV to keep it together for about 10 years now. I know others hate that seat but it works for me.