The dealer was eager to deal with this today now that I actually broke down on the road. It was the vent line, they say. Now here's the next thing. They put on a pair of TOR long silencers and did nothing to the jetting. It actually ran pretty good. While they had the tank off today, they drilled out the fixed air screws so they could play with them and say they "tuned it right up." Now it pops quite a bit and the beginning of the exhaust is yellowing. The mechanic said it pop a but and that it would be a good idea to cut off the secondary air, which would eliminate all this. I wanted to say, well, why didn't you do that while you had the tank off, but I know he didn't think of it until the tank was already back on. Oh well. I guess I get to clean a little more until I figure out how to tune it right. I want the dealer to do the work during the warranty period so there is no way to hide.