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DT125R FORUM

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  4. About to perform a fork oil change (not Dt125)

About to perform a fork oil change (not Dt125)

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  • Irongamer727I Offline
    Irongamer727I Offline
    Irongamer727
    wrote on last edited by
    #1

    Not sure if I should put this thread here or on off topic.

    Anyway I'm about to change the fork oil on my CB600F and had a look in the manual. I have no clue what I'm looking at. I want to know how much oil I'll have to add once drained. Here's the picture from the manual.

    http://imgur.com/a/Enhixxp

    I have one of those fancy fork oil tools when you have a ring attached to a tube and a syringe.

    NINJAN 1 Reply Last reply
    0
    • Irongamer727I Irongamer727

      Not sure if I should put this thread here or on off topic.

      Anyway I'm about to change the fork oil on my CB600F and had a look in the manual. I have no clue what I'm looking at. I want to know how much oil I'll have to add once drained. Here's the picture from the manual.

      http://imgur.com/a/Enhixxp

      I have one of those fancy fork oil tools when you have a ring attached to a tube and a syringe.

      NINJAN Offline
      NINJAN Offline
      NINJA
      wrote on last edited by
      #2

      @Irongamer727 Does the manual have a quantities section? It's normally after the torque settings or in the frequent maintenance section's.

      SEDUCED BY THE DARK SIDE!!!

      Irongamer727I 1 Reply Last reply
      0
      • NINJAN NINJA

        @Irongamer727 Does the manual have a quantities section? It's normally after the torque settings or in the frequent maintenance section's.

        Irongamer727I Offline
        Irongamer727I Offline
        Irongamer727
        wrote on last edited by
        #3

        @NINJA yeah that's what the photo shows?

        1 Reply Last reply
        0
        • Irongamer727I Offline
          Irongamer727I Offline
          Irongamer727
          wrote on last edited by
          #4

          It says fluid level 102 (4.0) and I have no clue what it means

          NINJAN 1 Reply Last reply
          0
          • Irongamer727I Irongamer727

            It says fluid level 102 (4.0) and I have no clue what it means

            NINJAN Offline
            NINJAN Offline
            NINJA
            wrote on last edited by
            #5

            @Irongamer727 I'm guessing that's 102ml or 4oz???

            SEDUCED BY THE DARK SIDE!!!

            Irongamer727I 1 Reply Last reply
            0
            • NINJAN NINJA

              @Irongamer727 I'm guessing that's 102ml or 4oz???

              Irongamer727I Offline
              Irongamer727I Offline
              Irongamer727
              wrote on last edited by
              #6

              @NINJA isn't that extremely little?

              NINJAN 1 Reply Last reply
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              • Irongamer727I Irongamer727

                @NINJA isn't that extremely little?

                NINJAN Offline
                NINJAN Offline
                NINJA
                wrote on last edited by
                #7

                @Irongamer727 Well maybe, looking at it again it might be 102mm or 4 inches? Are there any markings on the forks, either internally or externally? Or maybe it's from the top of the stanchion? My suggestion would be too measure down to the old fluid in millimeters before you tip it out AND tip it into a measuring jug when you go to empty the old oil out, so you have a record of what's in there now. And those two tests will give you an indication of what's required for refilling. 😉

                SEDUCED BY THE DARK SIDE!!!

                Irongamer727I 1 Reply Last reply
                0
                • NINJAN NINJA

                  @Irongamer727 Well maybe, looking at it again it might be 102mm or 4 inches? Are there any markings on the forks, either internally or externally? Or maybe it's from the top of the stanchion? My suggestion would be too measure down to the old fluid in millimeters before you tip it out AND tip it into a measuring jug when you go to empty the old oil out, so you have a record of what's in there now. And those two tests will give you an indication of what's required for refilling. 😉

                  Irongamer727I Offline
                  Irongamer727I Offline
                  Irongamer727
                  wrote on last edited by
                  #8

                  @NINJA Found simular information on a forum. How do I need to hold the fork? Put it in a vice with it just sitting?

                  NINJAN MiniaM 2 Replies Last reply
                  0
                  • Irongamer727I Irongamer727

                    @NINJA Found simular information on a forum. How do I need to hold the fork? Put it in a vice with it just sitting?

                    NINJAN Offline
                    NINJAN Offline
                    NINJA
                    wrote on last edited by
                    #9

                    @Irongamer727 Subscribe to MC Garage, he has endless vids with tips and tricks!!! 😉

                    https://www.youtube.com/watch?v=k884DfM2LsU&t=89s

                    SEDUCED BY THE DARK SIDE!!!

                    1 Reply Last reply
                    0
                    • Irongamer727I Irongamer727

                      @NINJA Found simular information on a forum. How do I need to hold the fork? Put it in a vice with it just sitting?

                      MiniaM Offline
                      MiniaM Offline
                      Minia
                      wrote on last edited by Minia
                      #10

                      @Irongamer727 said in About to perform a fork oil change (not Dt125):

                      @NINJA Found simular information on a forum. How do I need to hold the fork? Put it in a vice with it just sitting?

                      Yup, soft jaws or a rag and just sit in in the vice and crack the nut and let the old stuff pour out.

                      Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                      1 Reply Last reply
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                      • J Offline
                        J Offline
                        Jens Eskildsen
                        wrote on last edited by Jens Eskildsen
                        #11

                        Its easier to uninstall the cap when the forks are still mounted. Make sure to loosen the pinchbolts in the upper tripleclamb first.

                        And yes, the 102 sounds like 102mm from the top of the compressed fork (without spring installed) to the oil.

                        1 Reply Last reply
                        1
                        • CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #12

                          Easiest way is to pour the oil into a measuring jug and see how much came out.

                          Always Originate, Never Pirate!

                          Irongamer727I 1 Reply Last reply
                          0
                          • CalumC Calum

                            Easiest way is to pour the oil into a measuring jug and see how much came out.

                            Irongamer727I Offline
                            Irongamer727I Offline
                            Irongamer727
                            wrote on last edited by
                            #13

                            @Calum though you never know if someone else has filled the wrong amount of oil previously.

                            CalumC 1 Reply Last reply
                            0
                            • Irongamer727I Irongamer727

                              @Calum though you never know if someone else has filled the wrong amount of oil previously.

                              CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #14

                              @Irongamer727 Be alreet. I'm assuming you've been riding the bike and it's not been a problem

                              Always Originate, Never Pirate!

                              Irongamer727I 1 Reply Last reply
                              0
                              • CalumC Calum

                                @Irongamer727 Be alreet. I'm assuming you've been riding the bike and it's not been a problem

                                Irongamer727I Offline
                                Irongamer727I Offline
                                Irongamer727
                                wrote on last edited by
                                #15

                                @Calum yeah I guess. Probably going ride the bike pretty hard with stupid wheelies during the summer. Do you want just slightly more oil then? Or just the specified level?

                                NINJAN 1 Reply Last reply
                                0
                                • Irongamer727I Irongamer727

                                  @Calum yeah I guess. Probably going ride the bike pretty hard with stupid wheelies during the summer. Do you want just slightly more oil then? Or just the specified level?

                                  NINJAN Offline
                                  NINJAN Offline
                                  NINJA
                                  wrote on last edited by
                                  #16

                                  @Irongamer727 I would stick with the specified amount, if you want the forks to be a bit stiffer, then just use thicker oil like 15-20 grade.

                                  SEDUCED BY THE DARK SIDE!!!

                                  CalumC 1 Reply Last reply
                                  0
                                  • NINJAN NINJA

                                    @Irongamer727 I would stick with the specified amount, if you want the forks to be a bit stiffer, then just use thicker oil like 15-20 grade.

                                    CalumC Offline
                                    CalumC Offline
                                    Calum
                                    wrote on last edited by
                                    #17

                                    @NINJA Did we discuss this on another thread??? And thicker oil doesn't affect stiffness. I distinctly remember @Jens-Eskildsen Saying something. Or someone like that.

                                    I think, if you want stiffer suspension, then you need to change the springs.

                                    Always Originate, Never Pirate!

                                    NINJAN MiniaM 2 Replies Last reply
                                    0
                                    • CalumC Calum

                                      @NINJA Did we discuss this on another thread??? And thicker oil doesn't affect stiffness. I distinctly remember @Jens-Eskildsen Saying something. Or someone like that.

                                      I think, if you want stiffer suspension, then you need to change the springs.

                                      NINJAN Offline
                                      NINJAN Offline
                                      NINJA
                                      wrote on last edited by
                                      #18

                                      @Calum Probably we go around in circles a lot on this forum!!! :grinning_face_with_smiling_eyes: :smiling_face_with_open_mouth_closed_eyes: :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy: 🤣

                                      SEDUCED BY THE DARK SIDE!!!

                                      CalumC 1 Reply Last reply
                                      0
                                      • NINJAN NINJA

                                        @Calum Probably we go around in circles a lot on this forum!!! :grinning_face_with_smiling_eyes: :smiling_face_with_open_mouth_closed_eyes: :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy: 🤣

                                        CalumC Offline
                                        CalumC Offline
                                        Calum
                                        wrote on last edited by
                                        #19

                                        @NINJA I can't remember.

                                        Genuinely, as bad as this might sound, sometimes I actually struggle to recognise dreams from real life.

                                        I've sat there at times thinking of something as if it actually happened. Only to remember it was a dream. Mental mate.

                                        Always Originate, Never Pirate!

                                        NINJAN 1 Reply Last reply
                                        1
                                        • CalumC Calum

                                          @NINJA I can't remember.

                                          Genuinely, as bad as this might sound, sometimes I actually struggle to recognise dreams from real life.

                                          I've sat there at times thinking of something as if it actually happened. Only to remember it was a dream. Mental mate.

                                          NINJAN Offline
                                          NINJAN Offline
                                          NINJA
                                          wrote on last edited by NINJA
                                          #20

                                          @Calum You gotta stay off them drugs dude, I keep telling ya that there no good for ya!!! :grinning_face_with_smiling_eyes: :smiling_face_with_open_mouth_closed_eyes: :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy: 🤣

                                          But back on topic; I believe that the thicker oil slows the compression down, as it is harder to compress through the valves? Which in turn makes the forks slightly stiffer? But I may be wrong? And you are correct - Ultimately stiffer or progressive springs are the sure way to stiffen or upgrade their damping qualities. 😉

                                          SEDUCED BY THE DARK SIDE!!!

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