Modern Vespa

I recently purchased a 2006 Vespa LX 150 demo that had slight damage. At the time I was happy to save some money, but I'm beginning to rethink the purchase.

Yesterday, my first day on the Vespa, I scooted the four miles to work with little problem, though I did notice the engine putter a bit upon starting. On the way home I had A LOT of trouble getting the scooter started, and even after it had started it puttered out after a few moments. Finally it started purring, on the fifth attempt, and I was able to ride about a half mile before the engine cut off while stopped at a light. At this point I noticed gas leaking out of the tailpipe and what I think was the carb (small black hole just above kick start).

Has anyone else had similar experiences or know what the problem may be? I was guessing that the engine was flooded, but wasn't sure how that would've happened.

The bike is also still under warranty, though the local Vespa dealer is charging $80 an hour for a diagnostic test. Does that sound reasonable?

Thanks for the help!

flooded
overfilled tank
or your fuel tap could have failed.
use search button on this site.

Did you fill the tank all the way, even so far as to run over?