Ed you are very welcome . I'm surprised the dealer's wrench heads didnt think to check that breather tube. Excess crank pressure would be first suspect of a seal leaking or popping out.

That's funny, I did the exact same thing, I was doing the air mix screw mod to the bike when it was new, and so I took off the tank, and when I put it back on I must have caused the hose to crimp. So one day the wife and I are out riding and since I ususlly let her go in front of me I noticed that every time we came to a stop the bike would sort of start blowing smoke out. I think I actually found the answer to the problem on this great site. anyway, un kinked the hose and it was all good from that point on. Funny what you do to cause your own problems huh? LOL

Ain't that the truth! But what fun would it be to never mess up...I mean mess "with" your bike?