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XL 760 seal blow out

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  • #1

    XL 760 seal blow out

    I got a 1999 Yamaha XL 760 from an older lady this past week. The engine is an SBT with about 20hours it was replaced alittle over 2 years ago so just out of warrenty. The rear seal is blown out. What would cause this to happen on a never rebuild engine? No looking for anything just a reason that this could happen so it doesn;t happen again.
    Thanks
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  • #2
    Re: XL 760 seal blow out

    Yamahas are know for blowing out rear seals if water is injested into the case or if they backfire, factory motors will do the same thing.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

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    • #3
      Re: XL 760 seal blow out

      Ok thanks,
      Had a waterbox blow up with a backfire but never a engine seal.

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