919 Suddenly Runs Lean
My 919 has always run rich, as they are known to do. Suddenly, however, it smells lean and seems a little weak in low revs. Once she spins up, though, she still pulls. I'm trying to figure out why the hell my mixtures just flipped to the other end of the spectrum though. 2007 CB900, 27k miles, stock as frig. Did a bafflectomy over the winter but it ran same as always without the baffles until recently. I'm planning on looking at the plugs, checking the air filter, maybe checking the throttle bodies. It is quite overdue for a valve adjustment, but if that was the cause, I would think the change would be way more subtle.