Why generator automatically shut down after working few minutes?1. The flameout switch is not on, and the flameout line is short circuited. Lack of oil protector automatic protection.2. Sensor: Unplug the connecting wire of the oil sensor and the oil change sensor for gasoline engine starting.3. Ignition system problem: Unplug the spark plug and start it idly. Observe the spark. The spark is white and red. If there is no spark, change the spark plug or igniter.4. Fuel supply system problem: check whether the fuel has water. If it has water, clean the carburetor with gasoline. Judge whether there is fuel in the cylinder block, pull out the spark plug, press the air filter hole tightly with your fingers, start the air pull for several times, and smell whether there is fuel smell in your fingers. Judge whether there is air leakage in the oil supply channel, and change the position of the damper to see whether it can be started.Gasoline Generator With AVR