Jumped on the bike this morning and a puff of white came out on start up... went away as it was running... until I hit the throttle again, and a lot more white smoke. CRAP!

- Let it cool down and let the oil settle and the oil in the glass has dropped from just over the mid mark (1600mi since oil change in March) to just under a quarter of the glass.
- Pulled the plugs and they are both black
- FYI in March the valves were done

I have a buddy coming over to help with a compression test and a air leak down test. Any thoughts? My first thought is piston ring, but then again I know very little about engines...

As much as this sucks, being there is a rally this weekend... at least it didn't happen on the road!!