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Onan 4000 watt RV generator Repairs Service and Common Problems

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AZ Expert

I did safely return from my crosscountry 2021 Allegro RED delivery to Kentucky, only to get back to work on this Jayco Greyhawk.

This Class C has what is known as an Onan 4KY 4000 watt RV generator. After installing the new AC unit, I spoke to the owners and discussed the issue of the generator surging sometimes. They agreed that ontop of the service they wanted performed anyway, to repair the issue with a new carburetor, as the old one was having some issues. I discovered the fuel line was also cracking, rigid and needed replacement too. I know, some would say just rebuild, but rebuild time is still expensive with no assurance the problem is fixed at the end, so I chose to replace and instruct owners how vital running it one hour a month is. The oil service is ridiculously easy, and DIY is a great way to recoup the money spent on a new carburetor :)

Thanks for watching!

Onan 4KY carburetor p/n A042P619: https://amzn.to/3BMGzUm

Air filter p/n 1403280:
https://amzn.to/3QSm7po

posted by unbloggym