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  1. R

    25 -30 OMC carb swap

    Going for better safe than sorry:<br /><br />I need a Main Jet size for a 30 hp OMC. <br />Using casting 432703 . The venturi size and flange dimensions are a match for a 30 replacement carb . <br />These carbs are of unknown heritage and I would like to verify what ball park size that I should...
  2. R

    25 OMC winter carb icing

    We have a 1994 Evinrude 25 that is our Duck boat motor and we ask it to go in some mighty nasty Illinois winter weather.<br />The issue is with Carb Ice on those super cold days. I am sure that is the problem as when it occures ,the lost of power is gradual and when it gets to slow, a few mins...
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