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yamaha 4.3 motor has strange bolt hole with threads?

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  • yamaha 4.3 motor has strange bolt hole with threads?

    91 yamaha 4.3 stern drive

    new to me boat was looking over after a test fire in the lake to find out it will not start under load and found a what appears to be a bolt hole with threads in it in the real of the motor on right hand side of block about a inch from the bell housing. any ideas what this is or what goes in it?

    thanks in advance.
    Last edited by macfatty; September 19th, 2008, 09:05 AM. Reason: title change

  • #2
    Re: strange bolt hole with threads?

    no ideas without any pictures.....

    Can you return the boat or are you stuck with it?
    just because you found it that way does not mean it is supposed to be that way.

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    • #3
      Re: strange bolt hole with threads?

      There are scads of unused threaded holes on engines.

      BUT>>>

      The fact it is a YAMAHA outdrive is enough to take the thing back for a refund.

      Other than Captain Ken you are SOL on parts for thsoe things, and even he doesn't hgave a lot of them.

      Thank Yamaha for hosing all the poor souls that bought their sterndrives.
      The last time religion controlled the world it was known as the Dark Ages

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      • #4
        Re: strange bolt hole with threads?

        thanks guys, i tried to get money back but was told "it ran fine when you looked at it" so i got it as is. it does run good out of water just not in it. also the threaded hole i have no idea what it is but will try and get a picture. i should of researched the motor more than i did then wouldnt have this problem. thanks in advance.

        side note going to try and find the book for it today.

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        • #5
          Re: strange bolt hole with threads?

          do yourself a favor.... get it running and sell the boat off to the next pour soul
          just because you found it that way does not mean it is supposed to be that way.

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          • #6
            Re: strange bolt hole with threads?

            thats what ill have to do.

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            • #7
              Re: strange bolt hole with threads?

              thats what ill have to do.

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              • #8
                Re: strange bolt hole with threads?

                Ayuh,...

                If you want Yamaha Info or Parts,....

                Edit the title of your thread to include the name Yamaha....

                Capt. Ken is much more apt to find it that way....

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                • #9
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                  Re: yamaha 4.3 motor has strange bolt hole with threads?

                  thanks and have done it, also contacted capt.Ken

                  thanks to all who replied.

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