a tappet cover leak might explain a bit of smoke coming off the head exhaust port area, but not the smoke coming out the tail pipe.
How many miles are on the bike?
Did you have the bike hanging upside down all winter like the photo in your garage? (Sorry, could not resist)
I would not expect the rings or valves to be leaking oil into the combustion chamber until you were getting close to 100k miles on the odo. Maybe a head gasket leak?
Last edited by KCW; 02-03-2019 at 02:03 PM.