I have a fairly new GP7000E portable generator and I am not happy with the frequency output. It goes from 63-64 Hz no load down to 57-58 Hz with a 4kW load (and it is rated for 7kW - I wonder how low it would go fully loaded)? It is a mechanical govenor.

Does anyone have the instructions on how to perform a static govenor adjustment? I have other portable generators and this is the worst one as far as frequency output. I am using a true RMS device to measure the frequency.