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  1. O

    what size prop for 1973 Rude 50 hp 2-cyl. (3 blade, clockwise)

    Hi all, Just wondering what size prop to use for above motor. Currently have a 13.5 x 15 pitch and do NOT seem to be getting the wot performance I expected. I just bought a tiny tach to see where my rpm range is. Putting on tomorrow. I believe my wot rpm should be between 4500 - 5500 rpm. Not...
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