Onan oil change now not running
Hey guys I have an Onan microquiet 4000. Generator ran fine. Did an oil change and cleaned air filter and hasn’t ran since. Cleaned the carb and still won’t run correctly. It fires and runs for about ...
Forum Discussion
kx125str99 wrote:
Well when I was adjusting the screw I could hear the engine noise change. It got quieter so I’m gonna go ahead and jump off a limb here and say maybe it was over revving and going into a safety. Iv only had trailer for about 6 months. . When microwave would run it sounded the same as idle. No change. But now it runs like it should. Revs up when under a load. So I’m gonna gonna stick with the idle screw fixed my issue.
The Onan 4000 watt generator is supposed to run at a constant speed of 3600 rpm, not "rev up" under load—unless by that you mean getting a bit louder while running at (very nearly) the same speed. Since it's a mechanical governor, it will be running at a microscopically slower speed under load, but only a barely noticeable difference, maybe a few percent.
