1. Turn off the engine and let it cool down. This is important to prevent further damage to the engine.
2. Remove the spark plug. This will allow the air and fuel mixture to escape from the cylinder.
3. Kick the engine over a few times with the spark plug removed. This will help to clear out any remaining fuel mixture from the cylinder.
4. Replace the spark plug.
5. Try to start the engine. If the engine starts, let it run for a few minutes to warm up.
6. Take the scooter for a ride. This will help to clear out any remaining fuel mixture from the engine and exhaust system.
If the engine does not start, you may need to repeat steps 2-5. You may also need to check the fuel filter and carburetor to make sure they are not clogged.