I have had this oil back from the breather into the air filter twice in 3000 miles. Just cleaned the air filter up and re-oiled. Morgan say check for overfilling, engine hot. Mine has always been OK regards level so not that!
See link, if you look around this V Twin forum a common fault with this type dry sump engine.
http://www.v-twinforum.com/forums/evolut...lve-repair.html
