Onan 5500 Marquis Carburetor Fixed
I have the gasoline Onan 5500 Marquis BGM series with the altitude adjustment on the bottom of the carburetor fuel bowl. I posted a while back about my genset not running. It wold turn over fine, bu...
Forum Discussion
The fuel pressure comes from the spring of a spring loaded solenoid/plunger which is cocked a few times a second whether or not it needs cocking. There is no feedback loop to tell the pump enough is enough, it just keeps pulsing the plunger. If there is no place for the fuel to go then the plunger stays in the cocked position with the spring applying pressure to the fuel. etc etc
