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  1. K

    Tachometer troubles

    I have a 1957 evinrude fastwin 18hp electric start, and I'm trying to hook up tachometer. But as the engine did not originally come with one or a charging system, I'm unsure as to where to hook up my 3 tach wires. I bought a tachometer that I believe will work. 1 black wire 1 brown wire and 1...
  2. K

    1957 evinrude fastwin 18hp ventilation problems.

    The 1957 evinrude fastwin 18hp I have on my 66 alumacraft maracaibo is having cavitation problems. Can't get motor above quarter throttle before it starts pushing air and losing thrust. I have a 16 inch depth from transom to water line and I believe the motor has a 20 inch shaft. How do I keep...
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