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#13413
Buccaneer
Participant

    US Member

    Thanks for the tips on worn out main bushings on the Neptune.
    You made a believer out of me. I got it running on the stand
    this morning for a few seconds. Killed it, removed the exhaust
    tube. Put it in the test barrel, and it wanted to run, but not quite.
    Put it on the stand, removed the prop, and test started it,
    and ran for a few seconds. Put the hyrophobic Neptune back
    in the test barrel and it actually started, but ran erratic, and
    for the most part, would only run with the throttle closed, and
    that was at a very fast idle…… but of course there was no
    prop on. It only ran for five minutes until it crapped in the
    barrel and died. Guess I’ll have to decide it I want to make
    it a runner or ornament. Wished I had measured crank bushings
    while it was apart 🙁
    How much would the 60 psi compression be contributing to
    the starting / running issue? I have no idea what’s normal for
    this engine.

    Prepare to be boarded!