I have a 5500 onan in my new fuzion and it's always had a lean pop out the exhaust and would surge when not under a load. I am a diesel tech and refused to buy into the fact these carbs can't be clean...
It sucks they have these engines running so lean today. Another thing they do is run a really hot plug also. I couldn't believe the NGK plug had a heat range of 4. Man that's a hot plug. My old plugs that came out were so hot from being ran lean the threads were blued from the heat. I am a diesel tech for a living so trust me I hate emissions crap.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,248 PostsLatest Activity: May 15, 2025