CB750 K3. Cleaning house up in front sprocket area and probably replacing sprocket while I'm in there, though it does not look too bad. Struggling to remove the oiler plug nut, but wondering how many of you have and or/use the oiler system that comes on this bike. I see a replacement plug that just seals it all off.
Not sure how much of this crap was caused by the oil drip--about 4 threads are showing so it is "open."