ONAN 4KYFA26100K won't stay running

Bobbo wrote:

I have ordered this push button switch. It is a marine switch so being exposed to the elements should not matter. I can put connectors on the wires matching the ones on the Airtex pump and it will be plug-n-play. (Also easy to remove if problematic.)

I'm wishing the switch wasn't push button. Gonna have to be sure you or somebody else didn't push it to OFF or leave it in OFF and here you are wanting to use the generator. If you mount the switch near the generator, you can do the first priming of a trip at the generator, and be sure you hear the pump. Just impose a stiff penalty on anybody going around pushing buttons.

The valve idea inspired me. I ordered that guy and will install it next time I have the fuel line off. But just-in-case I need to work on something.

Those concerned that "running it out of gas" will leave residual in the carb have valid concerns. That's why I don't suggest that. Personally, I put stabilizer in every drop of gas I buy, and also exercise the genny.

Carbs have brass jets and other brass parts. Brass is part copper, and copper promotes formation of gum with gasoline. So it's indeed possible the thing could run out of gas but leave some gas in contact with a brass jet and end up gumming it. Reduced chance, I'll admit. The gas could easily evaporate first.

I do the stabilizer/exercise thing because I've had to replace a carb and I no longer "Feel Lucky."