Hi i dont know about scooters but if it has a carburettor it sounds like your needle valve in the carburettor is sticking open and flooding the carb just tap the bottom of the carb with a rubber mallet or wood and that can release the sticking valve temp fix if it fixes it but ideally need to take carb bowl off thats the bottom of carb and give it a blow through goodluck
john, November 2011
