Are you sure it isn't the steam coming up off of the motor and going into the air box?
That is what mine was doing.
I had wrapped my mid pipe and when I came up out of the river, the steam was pouring off of the mid pipe header wrap, and up through the hole where the fuel line and fuel pump electrical connector are.
That made me realize that most of the induction air was coming in from right above the mid pipe.
So, I drilled a line of holes along the flange on the radiator shrouds where it meets the seat.
The result was very good, as evidenced by the dust imprints on the air cleaner after I made this mod. I had some pictures in the gallery of this mod, but, can't find the gallery on the new page set up....
