Aerox 2003. Does not start. The carb does not produce vacuum? I suspect gas is not entering carb. Method: Detached fuel hose from carb. Put the nozzle in a plastic bottle instead. Kick 10-20 times, at first it drips just a few drops, then it halts and no more drip. I suck on the vacuum hose a little, like a soda with a straw on mcdonalds. Then it pours out. Therefore I conclude that the carb is unsuckable. What are the causes? The carb WAS clean/new yesterday, then the scooter started. But today it acts just like the old replaced carb - just like fuel starvation. So I replaced it in vain I guess. I emptied tank into a clear bottle, saw no water or other stuff.