wa8yxm wrote:
Check valve won't help.. I can explain why but.. Well, take my word for it wont' help
Two suggestions: First RTFM.. THe manual for my ONAN says to press and hold the STOP button till the light comes on solid... Now if you do this inside you won't notice anything but the light.. But if you do it outside you will hear the fuel pump clicking when the light is on.. Hold it a few seconds longer.
Then press START
I find this helps. but still. Try this
Press Start.. Let it turn over just once or twice (Cranking not running) NOw release,, count to 10 and press again (longer if you don't do the stop bit first)
Mine genrally fires on the 2nd press...... IF it's been a full month, may take a 3rd press.
I don't have an Onan I have a Kohlar 5kCM21. There is no prime function.