Onan 5500 surging after warm
Hello I have a 2014 TH with an Onan 5500. After running perfect and warm, the unit starts to surge. If I hold the butterfly on the carb manually by hand just slightly closed,(it is wide open when...
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Sam Spade wrote:Snowman9000 wrote:
Actually I have had even better results with Sta-Bil Marine additive than Sea Foam.
And you should have even better results if you use a product that is designed to be a cleaner.
Both those were intended to be a fuel stabilizer and whatever cleaning action they have is just a coincidence. Gumout and Berrymans B12 are better cleaners. Techron for engines with injectors.
Are you a chemist? Sea Foam is marketed to clean out carbs. The Sta-Bil Marine formula I have also has directions for using it double strength to clean out carbs. I've used Sta-Bil Marine for this exact purpose, several times, and it worked great. That is my only qualification to be able to comment here. Have you tried it?
And the kind of buildup that could be on injectors in the combustion chamber is quite a bit different than what's in a dirty carb.
