One thing I forgot to mention was that I have never been able to bleed my 2030D the way it says in the manual, and apparently neither can my local Seastart engineer.
    On his advice I open the vent screw and turn the engine over using the start button. As soon as she fires up turn the engine off as quick as possible and then bleed any remaining air out of the system manually before closing the vent screw.
    Works every time for me.