Why can't a scooter accelerate when the throttle is applied?

[SanBrynlee]

Generally, it is mostly caused by carburetor blockage, improper air-fuel mixture, too small valve clearance, poor spark plugs and gasoline, etc. Here is some extended information about motorcycles: Types of motorcycles: Motorcycles, driven by gasoline engines, are two-wheeled or three-wheeled vehicles that rely on handlebars to steer the front wheels. They are lightweight, flexible, and fast, widely used for patrol, passenger and cargo transportation, etc., and also used as sports equipment. Motorcycles are divided into street bikes, road racing motorcycles, off-road motorcycles, cruisers, touring bikes, etc. Precautions for riding motorcycles: When riding in urban areas, riders need to concentrate more, correctly judge and handle various situations. Riders should have correct anticipation for various pedestrians. For example, when encountering pedestrians who are not paying attention, they should honk the horn or use other signals at a relatively far distance to make the pedestrians move away in time to prevent them from panicking and colliding with the vehicle.