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  1. J

    Please help with main jet part #'s

    Hi. I have a '79 Evinrude 140. I have added the boyesen reed valves and aquired the low spped jets in 2 sizes bigger. I was told by a boat mechanic that It might not hurt to go 1 or 2 sizes bigger on the main jets because of the gas we have today, plus for better performance with the new reed...
  2. J

    Please: Some advice for high speed prop

    Hi. I have a 18' 1971 Kona fiberglass shallow V boat with a strong '79 Evinrude 140 with Boyesen Reed valves so it is good for 6000 rpm. I only care about going fast. I want to put a prop on this that will give maximum speed. I dont tow skiiers or tubes. I assume it should be cupped, and...
  3. J

    Advice requested.

    Hello. I have aquired a 1979 Evinrude 140. It didnt come with a lower unit, but,I am wanting to install a Hydroelectric lower unit from a 1972 125 Evinrude. I am very familiar with the mechanics of the Hydroelectric lowers as I have rebuilt a couple and they work well for me, and I favor them...
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