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    Retune a Detuned...???

    I just bought an 18' Valco w/ a 1990 detuned Johnson 40 which is called the "Alaskan 35". Yesterday when I applied water to it via the garden hose, and started it up, I noticed that it would accelerate normally but when I gave it max throttle, when it got to a point, the RPMs stayed the same...
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    Johnson Takes off Suddenly

    I have a 1976, 55hp Johnson Seahorse. I will slowly and gradually increase the throttle and all seems well, but when acceleration gets to a certain point the rpms increase suddenly without any major change in the throttle. It's like it just jumps to full throttle from, say, medium throttle...
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