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West Central Iowa | New to me 2009 Onan RV QG 2500LP generator with 40 hours total run time starts very hard and runs rough.
I know that the rough running is being caused by too rich of fuel mixture, because it will smooth out and run very smooth if I close the fuel tank valve until it is almost closed. The air filter looks like new and running it with no air filter makes no difference. I have it hooked up to a different tank with a brand new regulator that I tested the pressure on with a manometer and while it is a little high at 13WC (service manual calls for 11WC), it runs the very same as it did with the camper tanks and regulator. If this was a gas powered unit I would be looking for either a carb adjustment or a carb problem, but with propane I don't know. Onan says carb is not adjustable and they offer no kits or parts for the carb at all.......only a new carb for $$$. Anyone have any thoughts on this?
Also there is an oil leak somewhere on the bottom side of the engine.....any common areas to leak on these?
If it matters the Model number is 2.5KVD2089B Spec-B and the sn is D090241978
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Propane generator running rich??
