No, Harley-Davidson motorcycles do not stop running immediately after they start. Once you start a Harley-Davidson motorcycle, the engine will continue to run until you turn it off or it runs out of fuel, or there is a mechanical failure.
Harley-Davidson motorcycles are equipped with an internal combustion engine that relies on a continuous supply of fuel and air to keep running. When you start the motorcycle, fuel is ignited in the cylinders, creating the combustion necessary to generate power and keep the engine running.
To turn off a Harley-Davidson motorcycle, you typically use the ignition switch or key to shut off the engine. Some models may also have a separate kill switch that can be used to stop the engine. It's important to follow the manufacturer's instructions and use the appropriate method to turn off the motorcycle to ensure safe operation and prevent any damage to the engine.
In summary, Harley-Davidson motorcycles do not automatically stop running after they are started. They will continue to run until you intentionally turn off the engine using the ignition switch or kill switch.