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Trouble with Onan 2800 generator


bobar

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I think there is an idle spring connected from the throttle to a load sensor that increases RPM when under loads. I would check to see it that spring or lever is connected properly or to the proper place. Sorry, other than that, I am clueless. I am sure there are many possibilities, but that is the only one I could give any experience on to. Good luck my friend!

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i could be wrong, but i think that is also called a governor? if it is the same my experience has been they are not easy to adjust properly and if set wrong can allow the engine to over rev and "burn" itself up. i have a honda motor that the spring has gotten weak, bent the spring a tiny bit making it a little stronger again. been to lazy to try to find a replacement spring and it has worked for two years now :o)

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Check fuel pressure with the engine running should be in the 4lb range.

Try running with the gas tank cap removed. A vacuum in the tank will reduce fuel to the engine

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