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    Standard jet size

    Carburetor
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    • Haako Smith
      Haako Smith last edited by

      What is the standard carb siede for a Yamaha dt 125 R?

      1 Reply Last reply Reply Quote 0
      • Calum
        Calum last edited by

        For the newer bikes it uses a 210 main jet. Or a 240 for the slightly older flat slide models.

        Haako Smith 1 Reply Last reply Reply Quote 1
        • Haako Smith
          Haako Smith @Calum last edited by

          @Calum Are you sure it uses 210 for original 28mm carb. IT seems a bit high dont IT?

          Glynn123 1 Reply Last reply Reply Quote 0
          • Glynn123
            Glynn123 @Haako Smith last edited by

            @Haako-Smith Mikuni jet sizes differ to Keihn etc and flow differently, 210-240 main jet is correct on the standard flat slide 28mm

            Haako Smith 1 Reply Last reply Reply Quote 1
            • Haako Smith
              Haako Smith @Glynn123 last edited by

              @Glynn123 oh ok. That makes more sence.do you know what the differnece is? I am now running 146 main jet in a koso 32mm carb, but when i rev it at max it wont go over 8k in rpm.

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