The carbs seem pretty simple and I've some luck cleaning and adjusting them but an 18 dollar carb ordered online fixed one of the scooters. I could never get that one that came on it to work properly.
When your scooter quits if you are quick enough on the draw check the fuel drain and see is fuel will drain out. That's to determine if fuel is for some reason not getting from the tank to refill the carburetor bowl as needed.
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