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Thread: 59ci mercury carburetor

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    Default 59ci mercury carburetor

    I have been doing some studying up on the different carbs that can be used on a 2002 59ci merc. The carbs between 1991-1997 and 1998-2005 look the same, so can you put a 1995 60hp carb on a 2004 60hp? And I know that the 75hp-90hp and the 100hp-115hp are same physical shape with different size venturis and main jets, but are all the little air holes the same or are there other differences as well?

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    They may LOOK the same, but the bore size is very different.

    Bought a set of 50 hp carbs for a project once and was aghast at how tiny the bore was. I had to eBay them.

    Jeff

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    Quote Originally Posted by Fastjeff57 View Post
    They may LOOK the same, but the bore size is very different.Bought a set of 50 hp carbs for a project once and was aghast at how tiny the bore was. I had to eBay them. Jeff
    Yeah the bores (venturi) are different, the 40 and 50 are restricted more than the 60. but the basic size and shape are the same. I am concerned in the little holes within the carb. The 60,90 and 115 carb and venturi are the SAME with a different sized main jet, but what about all those little air holes?

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