onan 4k gen
my gen. will run without load for about 45 seconds then will hunt 2 times than run smooth again for a 45 more seconds again. When I put a load on it (1500 BTU AC) it will do the same but not as often....
Forum Discussion
Try prying off the limiting cap on the altitude adjuster so you can open it a little more. If that cures it, the main jet needs to be cleaned.
