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    Over prop? How to know?

    Hi, situation is; bought a boat with 3200rpm at WOT. Idle 450 so thought must be the gauge, replaced it and now idle 1200 rpm and at WOT 4800 rpm.s Is this boat over proped? coz it does not go to at least 5600 rpm.s? Or as it is a new boat to me (boat 10y old maybe less, previous owner not...
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    Honda RPM gage signal voltage

    Hi, my a honda rpm gage shows 3200 on WOT , 450 idling, I tried to toggle that switch for cylinder selection, works only on setting 1, others like 200, 100 at idle. signal voltage from honda 4 stroke 90hp is 0.65- 0.7 volt. If 1volt = 1000 rpms than the motor is running around 650-700 rpms...
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    Hydrofoil for pontoon?

    hi, new to the pontoon boats so learning as I go and not going too good. 1. pontoon 7m with honda 4stroke 90hp. Motor is trimmed all the way down, if up even a bit the prop just loses its grip. 2. when I bought it it didn't go pass 4800 rpm's than just cavitation and lose of speed 3. advised to...
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