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Transom Weight Limit

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  • Transom Weight Limit

    Hi, all.

    I have a 1977 23' Mako CC. I am currently hanging twin 1992 Rude 115's on the back which my dealer says weigh approx. 300# each.

    I am soon looking to repower and am wondering if anyone knows what the maximum weight I can put on the transom. Just trying to narrow down my options for the repower. Couldn't find info other than max horsepower of 250 on Mako's site.

    Thanks for any input.
    1977 23\' twin 115 rudes[br]New Orleans, LA

  • #2

    I just brought up the same issue a couple of days ago...sort of.

    I think with our boats you can find someone who has already been there and done that, but like you I think it would be good if we could determine how much weight is ok on our own.
    1978 Mako 25 - Blind Hog
    1985 Mako 20c - sold
    Fort Walton Beach, FL


    • #3
      I have a '73 22 CC with a 225 HP Yahama that weights in at 405 #. Haven't had any problems with the weight or HP. Rule of thumb for the HP is the transom is rated for twice the max motor HP for the year the boat was built. Weight is another issue - especially with the newer 4 strokes that weigh in way heaver than the 2 strokes - even the HPDI's.

      1973 22 CC Milford, CT USA[br]


      • #4

        According to the info. provided in the CoastGuard Boatbuilders guide, the transom is "dry weight" rated for 430lbs (IF designed for a single motor)... And 810 lbs (IF designed for twins)

        See attached link...

        I recently enclosed the transom (replacing the wood with Coosa), added a 30" bracket (armstrong), and hung twin DF140's (410 lbs each according to Suzuki brochures) on my Mako 224.

        Can't speak for others experiences, but I'm happy as a billy goat in tall grass to not be putting up with the "aroma" of half-burnt oils. Besides @ 410 # each, the Suzy's are pretty darned competitive with the 2-stroke offerings weight-wise, and at least on my boat, the performance is better than I had hoped for, AND they have nearly tripled (WAY more than doubled) the fuel economy over the single 2-stroke I replaced. In short, I'm tickled pink with the 4-strokes.

        Hope this help... Good Luck, OB1
        Working for a livin\' is HIGHLY Over-Rated...[][br]