I determined the fuel pump was bad on my Onan Marquis 5000 generator in my 1997 Fleetwood Bounder. The old fuel pump is located in an area that would be difficult to get to, so I opted to try out this AirTex fuel pump and place it in a location that was easy to access. I have an Onan Emerald 5000 generator model 5BGEFA26100P 'Spec P' on my RV. It was running fine until the next time I needed to start it. Now it will start and run as long as I hold the dashboard start switch in the start position. However, the On LED light in the switch does not light as it always did. I determined the fuel pump was bad on my Onan Marquis 5000 generator in my 1997 Fleetwood Bounder. The old fuel pump is located in an area that would be difficult to get to, so I opted to try out this AirTex fuel pump and place it in a location that was easy to access.
Hello, I have a 1994 Onan 5000 GenSet Emerald Plus, Model No. 5BGEFA26100K and have had a hard time getting it started on this last trip. I have been exercising it as per the manual and it was running great up until about a month ago, but I must admit the last 3 months I exercised the unit it took a bit longer to fire up. I would have to crank and crank multiple times then bump it quickly and it would finally start but would surge for about a good 15 to 20 min and then start to run pretty much normal, with some surging now and then. So when I looked at the GenSet at home I noticed while trying to start it that the throttle linkage that runs from the outside of the carb up under the top of the cover to I guess a choke or the governor linkage was not moving at all while I was cranking. So I pushed the linkage to the left which turns the butterfly counterclockwise in the carb and the engine will start immediately then when I let go the linkage moves back and forth while surging and it quits. If I continue to do this when it warms up a little it will then keep running but will surge, especially under load. I checked the air filter, the inline fuel filter #1 and the little filter #2 located at the carb, also the fuel pump, all those items were good. Spark plug was good, fuses where fine. Could this be a governor or auto choke issue. Thanks for any help
Michael
Michael
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Onan 5000 Genset Manual
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