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  1. #1
    Join Date
    Sep 2016
    Location
    Jupiter FL
    Posts
    121

    Default 1989 Yamaha 25hp conversion

    Has someone ever done a conversion from long to short shaft on a Yamaha outboard?
    I have done it on a 9.9hp Evinrude 1979 with no problem, was wondering if it could be done as easier on a yamaha.
    Any input, experience sharing etc, appreciated!

  2. #2
    Join Date
    Sep 2010
    Location
    ontario
    Posts
    13,806

    Default Re: 1989 Yamaha 25hp conversion

    If there is a 5" extension it could be easy.------Offshore motors are built a little different .-----I think this will be an expensive exercise, sorry.

  3. #3
    Join Date
    Sep 2016
    Location
    Jupiter FL
    Posts
    121

    Default Re: 1989 Yamaha 25hp conversion

    That's what I was afraid of, thanks racer.

  4. #4

    Default Re: 1989 Yamaha 25hp conversion

    I'd seen conversion yamaha f115 20" to 25".

    drive shaft, gear selector , and water passage is exchanged to 25" parts. (and cover extension)

    working is good.

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