Oil change complete. It was easy! I followed along to singh5g's video, rather than the service manual (although I did look at the service manual).
I checked the oil level in the glass window before i started, and no oil was visible. When I filled it up at the end, it took about 1.7L (just as predicted).
I didn't change any of the O-rings or washers -- they looked intact and un-squished. I was a little surprised that there was no gasket under the oil filter cover. The gaskets supplied by NFG weren't for my bike, so I just put it back together the way I found it.
The used oil came out totally black. (About 2500 mi since the last change, mostly city driving.)
One thing: along with some metal filings, a small solid metal cylinder (about 2mm long, like the size of a chocolate sprinkle, but machined evenly) was attached to the magnetic plug. Any idea where this came from?
Easy job. I'm about to take the bike out for a spin.