I've been smelling a burning oil my motorcycle, a 81 Suzuki gs450l. If I sit long enough at a light it can smoke.
I finally spend some time gave her a bath and proceeded to let run in neutral long enough to find the source of the smoke. It's coming from the crossover in the exhaust, which is under the frame of the bike. It is the lowest spot, so I'm thinking oil is pooled inside?? I spent some quality time with a flashlight looking for any signs dripping from the oil pans or gaskets above and didn't see anything new.
How do I diagnose or treat further?