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#244114
Don
Participant

    US Member

    Not sure I know what you are referring to by “flow restrictors”…. Later models used flow deflectors, they were kind of like solid rubber tubes that fit in the block to help control and direct the flow of water around the cylinders. But, I don’t think your engine uses them…
    Perhaps you can post a picture or point them out in this diagram:
    https://www.marineengine.com/parts/johnson-evinrude-parts.php?year=1960&hp=75&model=50522&manufacturer=Evinrude&section=Starflite+Crankcase+And+Cylinder