Replacement for Onan 4000
My Onan 4000 which only has about 80 hours stops working. I think it is because I do not exercise it monthly. I pay around $300 to replace the caburator, but I am thinking about buying a portable gene...
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My Onan 5500 worked great for one year then started surging, gave it the Seafoam treatment , seemed to help. Started surging again the next year , replaced the fuel pump, fuel filter worked good for that year. Next year started surging again, tried stronger mix of seafoam , didn't help and actually made it worse. Took carb bowl off, cleaned what jets I could with carb cleaner and it purred like a kitten. Left for a trip one week later , back to same old surging issue. A new carb for this model is over $300 but may have to bite the bullet and get it as I can't find a knock off carb for this model. I exercise it every month during the summer with a load on it and put fuel stabilizer in at the end of the season and run it with that in the fuel. I have a 5500 Champion for the house that has never let me down other than stupid Ethanol gas eating up stuff , carb was $35 for it.
