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Old 10-03-2019, 07:44 PM   #1
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Join Date: Oct 2016
Posts: 8
Onan 4KW generator hard starting

I have a Onan 4kw generator that takes too long to start. I prime for 15 second and crank - no start. 15 more sec and no start, after around 45 sec of prime it will start easy. Once it is warm it also needs much priming! this is not normal!
Today I asked a neighbor with the same 4kw generator to start and it was running with 5 sec cranking and no priming required!!!!
I need help with finding who can look at and fix this - I tried the local Cummings dealer but could not find anyone that was knowledgeable!
where do you find somebody with knowledge???
thanks for helping!
Abe Bergler

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Old 10-03-2019, 08:03 PM   #2
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Location: Mount Laurel, New Jersey
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When was the last time the fuel filter changed and any rubber fuel lines? Replace any rubber with fuel injection line. It withstands the alli fuel better.
2012 SunSeeker 3100SS Toad-1962 Futura Average 100 + days camping
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