Onan Marquis 5500 surging
The Onan in my 2000 Holiday Rambler has about 400 hours on it. When I first start it, it will run smoothly for about 10 seconds, then start surging then eventually quit. It may do this for about 10 st...
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Do the priming thing first. I hold the switch in the OFF position for 5-10 seconds, then start. Fires in 3-5 seconds usually. If I haven't run the genset in a while, or we moved the trailer then I prime it closer to 10 seconds.
