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    I'm replacing seals in 78 gs550

    There is a "special tool" required which you can make.. Theres a video on YouTube on how to change the fork seals on an 89.. He uses a 5/8 threaded rod with 2 nuts on either end.. Does anyone know if this is the same size for the 78?
  2. F

    Tire sizes

    Having trouble locating tube type tires for my 78 gs550 (spoke wheels). The manual says to use 90/90-19 front and 110/90-18 rear. What other sizes, if any, can I use?
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