Buddy,
Every once in awhile I have the same thing going on with my bike, just minus your oil problem.
Coming home from GA. I hit a strech where I could not get it into fifth gear and have a problem going from second to third.
I took it to the (new)Triumph dealer and the tech fixed it. I'm not that technical but he told me the nuts\bolts that hold the clutch springs were not torqued properly.
Bottom line I had the same noise you did and now it is gone after he fixed it.
CT. gang took the bike Gengras when I called them and told I bought it at Libby's they told me everyone can make a mistake now and then just bring it in no appointment needed and they would take a look. Fixed it right there on the spot I found my new dealer.
