I noticed the former owner plugged the crankcase vacuum tube - well I think that's what it is. It is located next to the starter. Looks like it used to run back to the air box through some fittings and a small tube of some sort.
I also noticed a wee bit of oily/carbon/ dust near the front cover vents, down at the bottom. At first I thought it was coming from the crossover pipe clamps, but now I'm not so sure. The bike runs well, doesnt use oil, and compression is within spec.
Shouldnt that crankcase vent be hooked up and run back to the airbox? All the other EPA stuff has been removed.