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Thread: Twins 50's on a 19'?

  1. #1
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    Default Twins 50's on a 19'?

    Can someone help me out with this? If I were to buy another Yamaha 50 to bolt beside the one I have on my 19' Searunner, would it need to be counter-rotating? Thanks for help.

  2. #2
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    Default yes, I hear

    From what I read, counter-rotating is "the way" to go. Will your boat take all that weight on the transom? Will be interesting to hear what others say. Good question.

  3. #3
    Member AKBighorn's Avatar
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    Default

    First question is do they make a counter-rotating 50? I'm not an expert in this but I would think that a 50hp motor doesn't put out enough torque to warrant this on a twin settup.

  4. #4
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    Default

    It would probably be easier and cheaper to sell your 50 and replace it with a bigger motor. Adding dual controls and moving your original motor over seems like more work than switching out to a bigger motor.
    Tennessee

  5. #5
    Member akrstabout's Avatar
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    Default not possible

    i bought two for my 22' boat. don't make a counter rotator till you get to 115 i think. does not affect stearing much. when running full speed in my boat and trimmed up nice it drives it self as striaght as an arrow. i bought my steering from dewies also. they have a very nice system they sell. stears like a dream. no need for hydrolic stearing like i was told. Wasn't to badly priced either. i run 15 pitch by 13 5/8 inch prop. i have the T-50's though. runs very good and pretty fast, can hit 35mph on a good day, but usually run at 30mph which is @5100rpm and get 4 miles to a gallon like that. cheap to run. about 5-7 gallons an hour. each motor is supposed use 3.5 gallons wide open. i just keep track of miles per gallon.
    Last edited by akrstabout; 02-03-2007 at 20:11. Reason: changed some info

  6. #6
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    Thumbs up laker

    throw a 150 hp on they and that will get you across skilak(sp) lake-specially if you got a load on

  7. #7
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    Default

    I wouldn't think you'd really need counter rotating props as I've driven a tiller 90hp without any trouble. If you're worried about it simply have a hydraulic steering setup put on the boat when you get the new motor and don't look back!!

  8. #8
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    Default

    Put a 115 on it. It would probably be lighter than twin 50s and better performing.
    An unarmed person is a victim waiting to happen.

  9. #9
    Member GOT TOYS's Avatar
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    Default Nope

    Short answer is no.
    If you were even able to get counter rotating, you would need 6 spare props (8 total) to do it right. Two of each rotation, and 2 high pitch (for running both motors), and 2 low pitch (for running single power) for each motor. Yet another reason to use only single big power, with a kicker to keep you out of trouble.
    If these are detuned 50's for running the Kenai, you would still need a minimum total of 4 props (2 high and 2 low pitch) to get what you need out of the motor(s). You would then a have a spare for the river as you would only run one motor, but no properly-pitched spares for the big water when running both.
    Kingfisher 2525. 225, 20, and 2hp Hondas.

  10. #10
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    Default

    Thanks for all the help, after posting the question I found a good deal on a 115 also. Still trying to decide what to do. hunt0601 why dont you just move up here and buy this boat, then I'll get a bigger one!

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