Generator surges
I have a 1997 Damon Intruder with a 5500 Onan generator. It surges and I have tried to adjust the carb. It has two adjustment screws. I have gotten it to stop surging by adjusting the small ideal jet ...
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Last year on our first trip out dry camping, the generator started to surge under a load again (I had "fixed" it with Sea Foam the year before and it had been fine). It ran fine with no load. With the air conditioner on, it would do a rhythmic up and down but continue running...for a few hours. Then it stopped taking a load at all - it would surge a few times and stall. Still, it ran fine unloaded. I asked in the smokstak forums and someone suggested points. Sure enough, new points cured it. It runs better than it ever has. Not saying that's your issue, but if you haven't changed them in a while (or ever) you might want to look into it. That is, of course, if your model still has points. If not, I'm sorry about the 45 seconds you just wasted reading this :)
