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Technical Support / Re: Onan generator 7500
« Last post by Richard Davis on April 22, 2024, 10:59:17 PM »It really seems like you are getting air in your fuel. I would carefully check the supply and return fuel lines for any issues. The only way I found the issues in my fuel lines on my QD8000 was to disconnect them, pressurize them with air and spray the lines with soapy water. Boy, did I create bubbles, the supply line was sucking air, but not showing leaks. Replacing both lines made it run much better.
Good luck. Richard
p.s. If you have not replaced the fuel filter, do that also.
Good luck. Richard
p.s. If you have not replaced the fuel filter, do that also.