I just changed my motor oil and filter, 200DF 2021. I looked at my record, (written inside the engine cowling) and saw I hadn't changed the L/U oil in a year. I drained the L/U and it LOOKS like only about 8 to 10 ounces came out.. It was black, but didn't stink burnt and didn't have any brass or steel in it, just a tiny amount of fuzz on the magnetic plug.
I put about a quart back in, until it came out of the top plug. Had a tournament yesterday, all normal, I'll keep an eye on it and keep us informed if anything happens. I did have one issue with line aroud the prop shaft a couple of months ago.
Hope there are no issues.