[whited44]

No don’t unscrew the pump AND crank the engine over. That’s a recipe for sucking air in the lines.

On mine, IIRC, once the white knob is unscrewed it moved in and out like a bicycle pump. But yours may not be that way or my memory chips are corrupted.

If in doubt, just crack the injectors and spin the engine.

Oh!!  Duh!!  I’ll give that a try. I unscrewed the one like that on the aqua hot but couldn’t figure out how to work it..  I’ll try this on the generator. Fingers crossed.