Originally Posted by Emmbeedee
This leads me to believe there's no oil feed to the unit aside from whatever might be in the side cover.
I believe you are correct
i.e. there is no pressurized oil feed.... the only oil that would enter is oil that that does so more-or-less by accident, based on spray, general oil level in the side cover or etc....
There is a Buell derivative design of this engine that does apparently spray oil into the stator area from the main crankshaft journal ... but we are not that lucky..............