Recent content by tdoyle100

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    Optimum RPMs For a 115hp Johnson Motor

    I have an 18 ft Glen-L cabin cruiser that I've just spent the last 2 years restoring. I just put a mid 1980s vintage 115hp Johnson V4 on it and have had it out on the water a couple of times. It comes up on plane and runs very well (about 30mph) at 3200rpm. I have been told that I would be at...
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