Correct way to start Onan 4K generator

[CodyClassB]

What is the correct way to start Onan 4K generator? My generator won't start unless I press and hold the start button for about 30 seconds to 45 seconds. Is that considered over-cranking? I can also press, hold and release the start button after 10 seconds. Then press and hold for another 10 seconds before the generator gets started.

thanks

[CodyClassB]

thanks all for your replies

[winpa4k]

I have a 94 onan with no prime function.
on a cold start: I press Start 15 seconds off
Start for 15 seconds off.
and some times if it's cold a third time.

And it is only to prime, because as old as it is I might have a small air leak back to the tank.

That way I do not heat up the starter.

Bob

[DrewE]

Many, perhaps all, of these generators are supposed to have a prime function by holding down the stop side of the switch prior to cranking (you should hear the fuel pump running if it's priming). If it's only an initial cold start that takes a lot of cranking, try doing this for 30 seconds or a minute before cranking.

On my Onan 4K generator, this prime function is either non-existent or broken. I should investigate that in my copious free time.

[csamayfield55x]

you should not crank it that long, that seems like a tuning issue. You will eventually overheat the starter and end up replacing it. Better to do multiple shorter cranks with a few seconds in between



Chris