Reply To: Corsair Navigator 4 hp Lower unit and water pump questions

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July 18, 2020 at 10:50 pm #209083
daveh
Participant

    I did try a small Yamaha impeller a few yrs ago on a 1-20. It did work, but didn’t cool properly. I will look into the Honda impeller.
    Are the 4, 5 and 7.5 straight leg lower units the same, or possibly the gear sets?