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DT125R FORUM

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  4. Jetting the carb

Jetting the carb

Scheduled Pinned Locked Moved DTX
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  • E Offline
    E Offline
    Elan n
    wrote last edited by
    #11

    @calum found the problem, servo cable snapped so the powervalve didnt work properly.

    HOTSHOT IIIH 1 Reply Last reply
    2
    • E Elan n

      @calum found the problem, servo cable snapped so the powervalve didnt work properly.

      HOTSHOT IIIH Offline
      HOTSHOT IIIH Offline
      HOTSHOT III
      wrote last edited by
      #12

      @Elan-n You can make your own using stainless MTB gear cables, use the inline cable oilers as well and you can quickly re-lube them after every wash:

      https://dt125r.co.uk/post/28693

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      • E Offline
        E Offline
        Elan n
        wrote last edited by
        #13
        This post is deleted!
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        • E Offline
          E Offline
          Elan n
          wrote last edited by
          #14

          @calum @hotshot-iii @rallyfinnen All right! But so abaut the jetting, so i should have no restrictions on my 2006 dtx. The only upgrades that i have are the reeds that were switched to carbon ones and a spacer between the intake and the reeds. and also the purtagal pipe from romeuhenriques. Current jetting is: idle 17.5 and main 210. Am i supposed to follow the older model with the 240 jets or what should i start with?

          HOTSHOT IIIH 1 Reply Last reply
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          • CalumC Offline
            CalumC Offline
            Calum
            wrote last edited by
            #15

            Go with the 210 main jet, do a plug chop and adjust to suit.

            The CDI on the 2006 DTX (at least in the UK) is restricted. So you won't be getting full power until you derestrict it, even then the performance is still stifled.

            Biggest upgrade I noticed to overall performance was a Zeeltronic ignition system.

            Vastly improved the performance on my DTRE.

            Always Originate, Never Pirate!

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            • E Elan n

              @calum @hotshot-iii @rallyfinnen All right! But so abaut the jetting, so i should have no restrictions on my 2006 dtx. The only upgrades that i have are the reeds that were switched to carbon ones and a spacer between the intake and the reeds. and also the purtagal pipe from romeuhenriques. Current jetting is: idle 17.5 and main 210. Am i supposed to follow the older model with the 240 jets or what should i start with?

              HOTSHOT IIIH Offline
              HOTSHOT IIIH Offline
              HOTSHOT III
              wrote last edited by
              #16

              @Elan-n Agree with @calum about the Zeeltronic, I enjoyed the process of installing mine and making it look as stock as possible.

              Re jetting, I think I'd be contacting Romeu Henriques, tell him about your other mods (intake spacer dimensions etc.) and see what he says. Everyone speaks very highly of his exhaust systems so he will probably have enough knowledge to plug the numbers into some two-stroke tuning equations and help you out.

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              • E Offline
                E Offline
                Elan n
                wrote last edited by
                #17

                @calum @hotshot-iii all right, i contacted the seller of the exhaust and he told me to use 245 main jet. So ill try that first. After some time ill get that zeeltronic. Firstly i want to get safely on the road. Piston replace gotta happen too because my piston has 22k kilometers but stil sounds good tho no ratlling or something but i want to be sure

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                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote last edited by
                  #18

                  #PotentialHandGrenade 🤣

                  https://www.youtube.com/shorts/0KlaU_adlWg

                  This was the state of my Raptor piston prior to me rebuilding it. Engine was running absolutely tip top prior to dismantling it. But this was a literal ticking time bomb.

                  Always Originate, Never Pirate!

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                  • E Offline
                    E Offline
                    Elan n
                    wrote last edited by
                    #19

                    @calum damnnn thats indeed a mayor problem haha, today im gonna remove the reeds and sparkplug and inspect the piston and cilinder walls with an endoscope

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                    • E Offline
                      E Offline
                      Elan n
                      wrote last edited by
                      #20

                      I searched with an endoscope in the intake an sparkplug hole and damn everything looks mint. How is that even possible haha.

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