Originally Posted by cronin069
does on onan gennie have to produce power to stay running mine just starts and then shuts down can any one help
No it does not.
Sounds like you have low oil pressure.
The starter solenoid does not provide power to keep it running.
I do not know of any gas engine that a starter solenoid provides power to keep it running.
If it cranks OK the starter solenoid is OK.