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    Big twin 40hp carb float upgrade

    I bought 5 of them they last a year and they're trash! Today's fuel eats the coating off of them. Since I've made the brass float I've had no more problems
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    Late 60s evinrude big twin 40hp fuel pump

  3. S

    Big twin 40hp carb float upgrade

    Just wanted let people know I've searched and searched for another option other than a cork float for the big win 40hp and I finally figured out how to get away from a cork float that ethanol fuel will eat through buy an 8hp briggs and stratton snapper lawn mower brass float heat the solder and...
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    Late 60s evinrude big twin 40hp fuel pump

    So those covers will swap right over from top to bottom?
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    Late 60s evinrude big twin 40hp fuel pump

    Recently bought a new fuel pump but it is different than the original and hitting the throttle lever. My question is can it be mounted upside down and still work? Or can I swap the two covers and make it mount on the side of the bottom cylinder? I have attached two pictures of my current...
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