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#290934
LARRY CATON
Participant

    US Member

    The attached picture is what got me wondering about drilling a hole in the water tube.  It’s from T-Mike’s Vintage Outboards eBay store.  The part number for my 15 Hp Johnson FD-10 is 303917.  Some of the water tubes in the picture have a hole in the side while others don’t.

    1956 Johnson 15 Hp, FD-10
    1957 Johnson 5.5 Hp, CD-14
    1958 Johnson 5.5 Hp, CD-15