Why did my generator shut off when the engine went from full speed to idle?

The oil level on your generator may be low. Our DEWALT generators have a low oil shut off feature. Make sure the generator is sitting on a level surface when running; if your generator is not sitting on a level surface this can cause the motor to shut off. Check the oil level after placing the unit on a level surface. If the oil level is low, add the recommended oil to the upper mark on your dipstick. You can use SAE 10w-30 oil for general all temperature use. If your unit still shuts off you would need to contact your nearest DEWALT Factory Service center for further help. To find your nearest Service Center, click here.