Scooter dies while driving

[Jugdish]

Thanks Ebuddy, tried spraying around the carb and intake manifold, and no changes. I was curious myself about a hairline fracture around the manifold. I did, however, replace fuel pump. I kept thinking back to when it would die, there was no fuel in the filter and wouldn't restart right away because it would end up with an air-lock of some sort, after being sucked dry. So far, it is running like normal. Long test ride tomorrow. So maybe, for whatever reason, not enough vacuum was provided to the fuel pump, gas shuts off?

Appreciate the suggestions.

Thanks,
Jugdish