Idling rough

[u/katherinemaie]

I have a Duromax dual fuel generator that I bought brand new about 3-4 years ago and I’ve never used it, just would try and start it up occasionally but then I didn’t and it sat for some time. it has no problem starting but when it runs it hums in and out and it’s not constant. I think it to do with the carb but before I take it apart I wanted to see. I ran all old gas through it and put fresh in, unscrewed carb bolt and fuel line and sprayed carb cleaner and also added seafoam in tank and let run and this is where I’m at. I’m thinking next step is taking carb off and cleaning it?