Forum Discussion
4x4van
Aug 28, 2017Explorer III
Yup, Onan carbs are notorious for gumming up if let sit too long. As rjxj said, make sure you installed a low-pressure fuel pump. If it will run, drop the fuel line into a separate fuel tank/jug with a bottle of Seafoam mixed into the gas (one bottle in 5 gallons). Stuff will sometimes work wonders on gummed up carbs.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,270 PostsLatest Activity: Jun 16, 2025