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bf90 # 4 cylinder bad

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  • bf90 # 4 cylinder bad

    bottom cylinder has spark clean carb good compression good leakdown test vacumn gage indicates possible sticky valve ....has proper lash adj. springs appear ok, igniton appears to fire at proper time i am baffled

  • #2
    May be starving for gas on that cylinder, if it's a model with choke plates then manually choke bottom cylinder only when running to see if helps.
    Regards
    Boats.net
    Honda Outboard Parts

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