What make my 420 shut down an idle Honda ATV 420?

If your Honda ATV 420 shuts down when idle, it could be due to several factors. Common issues include a dirty or clogged air filter, fuel system problems such as a clogged fuel filter or bad fuel, or an electrical issue like a weak battery or faulty ignition system. Additionally, a malfunctioning idle adjustment or carburetor can cause stalling. It's best to check these components methodically to identify the root cause.