50 cc Chinese scooter. After fueling up, I was turning on a road and my moped died. I put in the highest grade gas. I've charged and replaced the battery and the engine sounds like it's trying to start but just won't catch (sounds like what a car sounds like when it's dead). My break lights work so I don't think it's the battery. I can see gas in the clear round piece and I can smell it if I'm down by the engine while trying to start it. I've replaced spark plug, CDI box, and engine coil and there is still no spark. Kick start makes no noise. Help!