Haven't inspected any of the jets and other things since everything is covered and clogged in a greenish-brown layer of what I assume is old 2-stroke oil. Haven't seen any open oil inlets, and there's no ethanol mixed in gas here, so I assume the guy used to run premix and the gas evaporated while the bike was parked, leaving everything coated in oil, better than corrosion I guess.

From my tinkering since making the post, the first issue is that the carbs are "reversed" since they are mounted at and intake from the front of the engine on the MC11. So on the MC16 the cable bracket ends up facing towards the back of the bike. Adding oil feed from the MC16 oil pump should be easy enough with some M5 barbs, since there are threaded holes on the intake side of the carbs and the oil pump cable is pretty long, but the throttle needs some creative routing.

So I'll probably get another set of carbs, but I might be able to use these for starting the bike for the first time since I got it