Any motorcycle mechanics here?

cudavert said
Exactly as was stated above......oil or fuel? Does it blow any blue smoke?

I had the same situation with an old Kawasaki triple I bought one time. One of the jets had vibrated loose from inside the carb and was sitting at the bottom of the float bowl. It would flood out massively in a matter of seconds.
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My Daughters bike did that out in the middle of nowhere, but it only has one cyclinder.:D

Probably took me 5 min to figure it out and 15 to fix it so I felt pretty lucky about realizing that was what it was.
Idled fine, but flooded badly when the throttle was cracked open.