If I remember correctly, there are at least 2 BIG O-rings between the Cylinder heads and the cylinders, that allow oil to be drained from the rocker box, through the cylinder head and into the crankcase to be pumped to the oil bag:smile_big: These have been known to crack over time and in cahoots with a cylinder head that is microscopically warped, the oil drips out at the head/ cylinder junction and flows down the cylinder and can or will hit the hot exhaust pipes causing the 'smoke' situation.:grin:
Worn out 'valve guides' can allow excess oil to enter the combustion chamber and cause smoke to just pour out the exhaust:sad:
I really doubt doubt that piston rings or the cylinders are worn enough to cause the problem:smile:
Thank GOD the engine is a Harley because it is Sooooo very easy to diagnose and work on, compared to the 'Axis of evil' motors that are so complicated, with miniature parts crammed together:wink2:
If it were me, I'd call S&S customer service and see if they could help you with some advice.:smile_big:
Sam:nerd: