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help diagnosing fork fluid leakage

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  • help diagnosing fork fluid leakage

    I have a 79 special. Seems to have a slow leak at very top of fork, right side. Rather not tear down the front end without having the proper replacement parts on hand. You guys know what this could be. Thanks!!

    Rob - 79 SF

  • #2
    There is an O-ring seal on the caps. Shouldn't be anything special.

    Release the air pressure, unload the front wheel, and unscrew the cap and take it off. There is spring pressure behind it so be careful. Take the o-ring down to a hardware or auto parts and match it up.
    Greg

    Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”

    ― Albert Einstein

    80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

    The list changes.

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    • #3
      Originally posted by mrhammer2u View Post
      I have a 79 special. Seems to have a slow leak at very top of fork, right side. Rather not tear down the front end without having the proper replacement parts on hand. You guys know what this could be. Thanks!!

      Where's the air valve ? Looks like there is just some sort of plug where the valve should be and red fluid around the cap (trans fluid) which is OK if the feel is good for you but you won't know until drain, refill with correct amount (I forget, you do have a manual ?) and get the air valve so you can adjust the air pressure too.
      76 XS650 C ROADSTER
      80 XS650 G Special II
      https://ibb.co/album/icbGgF
      80 XS 1100 SG
      81 XS 1100LH/SH DARKHORSE
      https://tinyurl.com/k6nzvtw
      AKA; Don'e, UD, Unca Don'e

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      • #4
        Originally posted by BA80 View Post
        There is an O-ring seal on the caps. Shouldn't be anything special.

        Release the air pressure, unload the front wheel, and unscrew the cap and take it off. There is spring pressure behind it so be careful. Take the o-ring down to a hardware or auto parts and match it up.
        +1.........loosen that top tripple clamp on fork top before trying to remove that top cap.
        81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

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