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  1. J

    Need higher rpm

    1973 Johnson 115 hp. Recommended rpm's at wot...4500-5500. I have a aluminum propeller marked K922. I only get rpm of around 3800. I tried to measure the prop and I think the diameter is just a bit bigger than 13". I also tried to measure the length of one fin at 6". Does anyone know what size...
  2. J

    Shift linkage height

    I have a 1973 Johnson 115 hp outboard. The manual says to tighten the top link, L-shaped, all the way down then back it off just enough so shift arm can be inserted into it. Lately I have been having problems with not completely shifting into forward. I have adjusted trunion and also adjusted...
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