Have that same one , it was on a property I bought . Sitting outside for about a decade in all weather conditions. We drained and cleaned the tanks and replaced a hose and it runs like a champ .
I have one like that except it’s a power mate. I think yours is a robin subaru engine? It looks like mine. I take mine out once a year and crank it, and let it run with a 1500 watt heater plugged in u til it runs out of gas. I have another 3500 watt ryobi that I do the same for. That ryobi will run my 120 volt wire feed.
Porter and cable..is that brand still around? I had an old generac generator that I loaned to my brother who said that the oil went dry while he was using it.
I think it has been discontinued. Yep, it's funny how when you loan something to someone that it is always the fault of what you loaned them or maybe they try to blame you. lol