I have a 2002 Onan 5500 generator, carbureted. It is very clean with few hours. I believe I may have run it out of fuel. I have refueled and primed the carburetor. Now it tries to start but dies immediately after pressing the start button. I have checked the fuel pump and carburetor. The fuel pump works well, filters not plugged. Carburetor bowl is full of fuel. I have pulled the spark plug and check for spark. I get a great spark while pushing the start button. As soon as I take my finger off the start button I lose spark. I have disconnected the oil pressure sensing switch with no change in symptoms. There is a single wire that comes out of the small wire harness located under the carburetor. That wire is connected to a single wire that leads around the right side and to the back of the generator somewhere. When I disconnect that wire the motor runs for two or three seconds Longer before dying. Can anyone tell me where this wire leads to? Any suggestions for the fix?
Onan 5500 generator won't keep running
- Thread starter Ffdpogue
- Start date
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Arch Hoagland
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If your motorhome fuel tank is below a half tank it may cause this problem as they don't want the generator to use up all your fuel and leave you stranded.
If your motorhome fuel tank is below a half tank it may cause this problem as they don't want the generator to use up all your fuel and leave you stranded.
