Last Friday my bike wouldn't go over 6000 rpm in the morning. Worked fine in the afternoon. Today, it was the normal rocket ship in the morning and my way home from work this afternoon. Parked in my garage...it started to make farting noises every couple minutes....like some sort of pressure relief. It went on for nearly an hour....as the bike cooled, the noise got softer. Anyone have any comments as to what the hell is going on? I did not put any beans in my gas tank! My son recorded it on his phone - will post as soon as he emails to me.