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YSS fork valves, spring preload questions

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    YSS fork valves, spring preload questions

    Just bought some YSS PD valves and going to fit them next week. The little instruction manual that came with the valves says they are set two turns in and says that position is for lighter riders.

    It's been a long time since I could be described as a lighter rider so I was wondering what you guys who have the YSS PD valves have set the preload at.

    I was thinking starting at 3 turns or should I go more turns.

    #2
    I am curious about this as well. Been thinking about upgrading stock forks to suit me.

    Comment


      #3
      It's out of 7 turns like RaceTech? I'm an aggressive 185lb (before gear) rider and typically run 3.5 to 4.5 on the medium springs for the street.

      But suspensions setting are very subjective.
      "I couldn't afford NOT to buy it!"

      Comment


        #4
        Originally Posted by Captain 80s View Post
        It's out of 7 turns like RaceTech? I'm an aggressive 185lb (before gear) rider and typically run 3.5 to 4.5 on the medium springs for the street.

        But suspensions setting are very subjective.
        Yes according to the manual 0-7 turns. I am 220lb in my gear but am not an aggressive rider. I think 3.5 turns is a good start.

        Comment


          #5
          They are bigger than I expected I was sort of expecting something about the size of a coke bottle cap. I also ordered a pair of copper washers for the damping rod bolt and a new 8mm HSS drill bit to open up the oil holes.

          16535001408896162760641702840012.jpg
          16535003166777535581896283670438.jpg

          Comment


            #6
            I forgot the other important question fork oil weight, did you stick with same weight as you had before fitting the YSS valves. I have read a couple of posts suggesting go up by 5w from what you had before which for me would be 10+5 = 15w.

            Comment


              #7
              I use 15 in my RT Emulators. Some times I'll mix up a -12.5 if I want a little less rebound damping.
              "I couldn't afford NOT to buy it!"

              Comment


                #8
                I add an additional hole. But as long your getting plenty of oil to the units.

                20210606_181052.jpg
                "I couldn't afford NOT to buy it!"

                Comment


                  #9
                  Originally Posted by Captain 80s View Post
                  I add an additional hole. But as long your getting plenty of oil to the units.

                  20210606_181052.jpg
                  Hopefully you fitted the Racetech Goldvalve Emulators turned 180 compared to the orientation shown on the picture... It is really not a good service to show a picture with the parts not in their correct position without clearly stating so.

                  For both the YSS PD and the Racetech Emulators the comments listed in the Racetech Emulator thread applies, eg. https://www.hawkgtforum.com/forum/ho...r-instructions there are other threads as well.

                  Comment


                    #10
                    Originally Posted by JanM View Post

                    Hopefully you fitted the Racetech Goldvalve Emulators turned 180 compared to the orientation shown on the picture... It is really not a good service to show a picture with the parts not in their correct position without clearly stating so.
                    Oh my god. No shit.

                    This wasn't a class room session. If anybody is assembling their bike from a pic with some parts on a towel, they prob shouldn't be doing the job.

                    My fork tubes are pointing the wrong way too. The seals? Who knows what's going on with them. How do they go? Why do those forks have 4 damper rods? Is running without bushings on the fork tubes a racer trick?
                    Last edited by Captain 80s; 05-25-2022, 05:29 PM.
                    "I couldn't afford NOT to buy it!"

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