When you say "a decent sized pool of 2T oil under my '91 MC21", just how much are we talking about? Not that there should be any under the bike! Is there any oil left in the reservoir/remote? Or is it all on the garage floor?!

Have you checked the transmission oil? This one probably sounds weird, but the 2T pump shaft seal can become unseated allowing the 2T reservoir to drain into the transmission. It's not common, but it does happen more than it should. If you take the cap off and oil immediately flows out of the filler neck, then you've found the problem.

Any oil around the outside of the RC Valves could indicate the RC shaft seal(s) are worn and leaking, and possibly a rich mixture and/or badly adjusted oil pump.
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Andy.
NSR-WORLD.COM

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