If you have a Honda EU2000 or EU2200 generator that surges at idle low rpm when you switch on the smart throttle / eco option, this might help you fix the problem, this fix generally works for any Honda power equipment that surges. Sometimes running the machine with the choke slightly applied will rich the air / fuel mixture enough to smoothen it out, but this really isn't the proper way to fix it. You'll need to remove the side cover and then carburetor. Be careful not to loose the small throttle spring under the white bracket mounted to the top of the carburetor.
