What is the rev limiter on a Honda 300ex?

The rev limiter on a Honda 300EX is an electronic feature designed to prevent the engine from exceeding a specific RPM threshold, typically around 8,000 RPM. This safety mechanism helps protect the engine from potential damage due to over-revving. It activates by cutting ignition or fuel delivery when the RPM limit is approached, ensuring the engine operates within safe parameters. Properly functioning, the rev limiter contributes to the longevity and reliability of the ATV's engine.