ok ... so I went and talked to the guy at the prop shop and he said I wanted the top end RPM's in the specified range . On my Johnson 140HP 4 stroke the manual says full throttle range is 5600 to 6200 RPM. I took the boat out today and at full throttle I hit 5300 rpm and my top speed was 31.4 mph . Im right below the range but not much . Speed is not that important to me but damaging my power head is . With the above #s do you guys think I am over propped or maybe just a little ans shouldn't worry about it ?
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12-03-2017, 07:34 PM
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