Not sure why you would want pure sine genset or inverter to power a simple AC motor. There are no sensitive electronics there.
And I would not use an inverter to power a motor of any size anyway, just not efficient at all. Startup currents on motors are hard on batteries too.
Mine will run off park power or my RV ONAN 4KW. Plenty good enough for us.
By the way, noted your location. Lived in Suisun City from '87-93,Langly Way in Quail Glen, then they closed MINSY where we both worked and I took early retirement. Found ourselves in AZ after several years where the wife is from anyway. Much cheaper than living in CA anyway.
Born/raised in Vallejo.