A lot of the mess on these old motors come from around the top crankshaft bushing.
The don’t have seals, but rather “slingers” that try to keep the excess oil under
the slinger while it tries to drain down a port back to the crankcase.
Drain ports can become plugged, etc., but there’s always going to be some mess.
When you pull the flywheel to go through the ignition, you probably see “more” mess.
Prepare to be boarded!
