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DT125R FORUM

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  4. Mikuni tm28ss 1989 dt125r

Mikuni tm28ss 1989 dt125r

Scheduled Pinned Locked Moved DTR
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  • CalumC Calum

    It will obviously need jetting to suit. What do you mean by angled bore, I don't understand.

    DartyD Offline
    DartyD Offline
    Darty
    wrote on last edited by
    #3

    @calum Angled Venturi.

    Keep it real

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    • DartyD Darty

      @calum Angled Venturi.

      D Offline
      D Offline
      dt125Matt
      wrote on last edited by dt125Matt
      #4

      @darty correct,

      I meant bore as in a hole

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      • D Offline
        D Offline
        dt125Matt
        wrote on last edited by
        #5

        This forum is really bugging out on my phone, i clicked the emoji button and it posted!

        Yeah the koso i have the float bowl and the venturi are level, where as the tm28ss has angled to keep bowl level.

        Ive seen that some people are using wr200 manifold but i can only find some available in Australia!

        If i were to get a fabricator to make a spacer for between the manifold and reeds in a wedge shape to picl up some of the angle what do you think?

        CalumC 1 Reply Last reply
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        • D dt125Matt

          This forum is really bugging out on my phone, i clicked the emoji button and it posted!

          Yeah the koso i have the float bowl and the venturi are level, where as the tm28ss has angled to keep bowl level.

          Ive seen that some people are using wr200 manifold but i can only find some available in Australia!

          If i were to get a fabricator to make a spacer for between the manifold and reeds in a wedge shape to picl up some of the angle what do you think?

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #6

          @dt125matt Can you get a photo?

          I'm not familiar with what you're talking about.

          Always Originate, Never Pirate!

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          • CalumC Calum

            @dt125matt Can you get a photo?

            I'm not familiar with what you're talking about.

            D Offline
            D Offline
            dt125Matt
            wrote on last edited by
            #7

            @calum

            alt text

            alt text

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            • D Offline
              D Offline
              dt125Matt
              wrote on last edited by
              #8
              This post is deleted!
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              • D Offline
                D Offline
                dt125Matt
                wrote on last edited by dt125Matt
                #9

                With the carb above...
                Im suggesting a machined billet block but on an angle to try and level put carb(red in the image)
                To go between reed valve and inlet maifold (green)
                Sorry for poor image but done it on my phone !

                http://imgur.com/gallery/uDImGjj

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                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by Calum
                  #10

                  HHmm, I don't think there is really any need to do that. I don't see why you would have problems with that carb as is.

                  Unless of course I'm missing something.

                  Always Originate, Never Pirate!

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                  • D Offline
                    D Offline
                    dt125Matt
                    wrote on last edited by
                    #11

                    Carb issue..... https://imgur.com/gallery/C3CdhiF

                    The file above shows images of my carb.... note the angle of the inlet outlet compared with the original image further up showing it being flush with the float bowl.

                    My worry is flooding issues.... odd idles etc....
                    My question was can i run the level carb as the float bowl will be angled...
                    The angle of my original keeping the float bowl level....

                    Any light would be appreciated 😊

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                    • CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #12

                      Ah ryt, yeah that carb looks gash lol. Why you want to use that for?

                      I see what you're saying, can't say I've had any experience with those.

                      Obviously the float should stop the fuel from leaking out, you can adjust the float height to shut off at the appropriate time.

                      I'd worry more about it shutting off too early and running bike lean.

                      Always Originate, Never Pirate!

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                      • D Offline
                        D Offline
                        dt125Matt
                        wrote on last edited by
                        #13

                        Its not that i want to use it - i will buy another tm28ss and have it enlarged when money is on my side next month.
                        As i wish to get my barrel bored sleeved and enlarged too.

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