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Onan Fuel Lines

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Posted May 21, 2014 - 02:33 PM

Replacing the fuel lines on my JD 318.   , wondering why there are

two extra ports (in and out) on the pump? 


Also, do I need to prime it somehow when I first start it, or will it pickup fuel on its own?


Heres a photo, didn't turn out as good as I wanted ,but I think you can see what I'm

asking about......



jd 318 002.JPG


#2 olcowhand ONLINE  


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Posted May 21, 2014 - 06:57 PM

No idea why the extra ports.  They are blind anyway.  If the pump is good, it'll prime itself, but will take some cranking the engine over.  I always just take the breather top off & crank off spurts of carb cleaner till the gas gets to the carb.  Saves wear on the starter & from draining the battery.

  • WHdbJD said thank you