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DT125R FORUM

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TDR issue

Scheduled Pinned Locked Moved Engine
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  • CalumC Calum

    @tdrnoob I ran a completely different carburetor, so all my jet sizes would have been changed.

    Plus I ran far from standard settings. Jetting must done to suit the machine you are riding, no two machines are the same so jetting is best done to accommodate this.

    T Offline
    T Offline
    TDRnoob
    wrote on last edited by
    #30

    @calum I have found the details of my carb it is

    PHBH28 Dellorto carb

    main: 142
    choke: 60
    atomiser: 266d
    needle: x18
    pilot :45

    I have removed the oil pump and installed the plate cover for hole. Tomorrow engine is coming back after bottom rebuild. Just thinking should I change jetting. Any advice

    CalumC 1 Reply Last reply
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    • T TDRnoob

      @calum I have found the details of my carb it is

      PHBH28 Dellorto carb

      main: 142
      choke: 60
      atomiser: 266d
      needle: x18
      pilot :45

      I have removed the oil pump and installed the plate cover for hole. Tomorrow engine is coming back after bottom rebuild. Just thinking should I change jetting. Any advice

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #31

      @tdrnoob I'm not familiar with that carburetor myself, as said, jet accordingly.

      If it's detonating, if it's spluttering, then you may need to jet to suit.

      But at a guess I wouldn't have thought you'd need to rejet.

      Always Originate, Never Pirate!

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      • CalumC Calum

        @tdrnoob I'm not familiar with that carburetor myself, as said, jet accordingly.

        If it's detonating, if it's spluttering, then you may need to jet to suit.

        But at a guess I wouldn't have thought you'd need to rejet.

        T Offline
        T Offline
        TDRnoob
        wrote on last edited by
        #32

        @calum Thank you

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        • NottsbikerN Offline
          NottsbikerN Offline
          Nottsbiker
          wrote on last edited by
          #33

          You should be able to get any spares you need from Allens Performance who stock parts for all makes of carb

          T 1 Reply Last reply
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          • NottsbikerN Nottsbiker

            You should be able to get any spares you need from Allens Performance who stock parts for all makes of carb

            T Offline
            T Offline
            TDRnoob
            wrote on last edited by
            #34

            @nottsbiker Hi. You wrote earlier to increase the jetting by 5%. It has pilot jet and main jet so do you mean those two to change to higher ones by 5%?

            I will test the bike with the original ones first

            NottsbikerN 1 Reply Last reply
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            • NottsbikerN Offline
              NottsbikerN Offline
              Nottsbiker
              wrote on last edited by
              #35

              Ps I've picked up a complete pdf of the 3SH parts list with full pictures and Yamaha part numbers from the German TDR forum.

              I'm currently in France on holiday but can email it to you when I'm near some wifi if it's any use to you?

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              • T TDRnoob

                @nottsbiker Hi. You wrote earlier to increase the jetting by 5%. It has pilot jet and main jet so do you mean those two to change to higher ones by 5%?

                I will test the bike with the original ones first

                NottsbikerN Offline
                NottsbikerN Offline
                Nottsbiker
                wrote on last edited by
                #36

                @tdrnoob said in TDR issue:

                @nottsbiker Hi. You wrote earlier to increase the jetting by 5%. It has pilot jet and main jet so do you mean those two to change to higher ones by 5%?

                I will test the bike with the original ones first

                I'm not an expert on jetting just relaying what I'd read years back. If in doubt get it set up by a tuner

                1 Reply Last reply
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                • NottsbikerN Nottsbiker

                  Ps I've picked up a complete pdf of the 3SH parts list with full pictures and Yamaha part numbers from the German TDR forum.

                  I'm currently in France on holiday but can email it to you when I'm near some wifi if it's any use to you?

                  T Offline
                  T Offline
                  TDRnoob
                  wrote on last edited by
                  #37

                  @nottsbiker Thats great! I really need it.

                  Could you please email it to me d.matuiza@gmail.com

                  Many thanks

                  1 Reply Last reply
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                  • NottsbikerN Offline
                    NottsbikerN Offline
                    Nottsbiker
                    wrote on last edited by
                    #38

                    Sent over!

                    1 Reply Last reply
                    1
                    • MightymanM Offline
                      MightymanM Offline
                      Mightyman
                      wrote on last edited by
                      #39

                      @Nottsbiker is there many pages? It would be great if we can get them uploaded into a thread of their own.

                      TDR 125 - 2001

                      1 Reply Last reply
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                      • NottsbikerN Offline
                        NottsbikerN Offline
                        Nottsbiker
                        wrote on last edited by
                        #40

                        Iirc about 70 ish

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                        • T Offline
                          T Offline
                          TDRnoob
                          wrote on last edited by
                          #41

                          Quick update

                          So my TDR belgarda had a full engine rebuild by Roadrunners motorcycles.

                          Also I have started premix. I used about 35 ml of 2 stroke oil to mix with the petrol.

                          There is video

                          https://www.youtube.com/watch?v=gjEHSmpNIgg

                          What do you think guys?

                          Just wondering if it everything ok.

                          1 Reply Last reply
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                          • CalumC Offline
                            CalumC Offline
                            Calum
                            wrote on last edited by Calum
                            #42

                            I used 200ml oil to a full tanks. Approx 10 litres.

                            Lovely little whistle to that engine too. Sounds great.

                            Always Originate, Never Pirate!

                            1 Reply Last reply
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                            • MightymanM Offline
                              MightymanM Offline
                              Mightyman
                              wrote on last edited by
                              #43

                              Never heard a sound like that coming from one of these 😂

                              TDR 125 - 2001

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                              • O Offline
                                O Offline
                                oldman
                                wrote on last edited by
                                #44

                                Sounds a bit chirpy? Can't think what would cause that, unless its just the recording

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                                • ZrakoZ Offline
                                  ZrakoZ Offline
                                  Zrako
                                  wrote on last edited by
                                  #45

                                  Oh thats same thing as I had on my dt. Thats the starter clutch not releasing after engine start.

                                  1979 Jawa Mustang 50
                                  2003 Gilera DNA 125 R.I.P
                                  2015 Keeway TX 125 SM
                                  2006 Yamaha DT 125 X

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                                  • NottsbikerN Offline
                                    NottsbikerN Offline
                                    Nottsbiker
                                    wrote on last edited by
                                    #46

                                    Sounds like the engine is very tight to me from the rebuild. Hard to tell from a YouTube video

                                    Looks like you are making good progress though mate 🙂

                                    T 1 Reply Last reply
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                                    • ZrakoZ Offline
                                      ZrakoZ Offline
                                      Zrako
                                      wrote on last edited by
                                      #47

                                      https://youtu.be/cleKkIbDTeI

                                      Check my vid , same sound

                                      1979 Jawa Mustang 50
                                      2003 Gilera DNA 125 R.I.P
                                      2015 Keeway TX 125 SM
                                      2006 Yamaha DT 125 X

                                      T 1 Reply Last reply
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                                      • NottsbikerN Offline
                                        NottsbikerN Offline
                                        Nottsbiker
                                        wrote on last edited by
                                        #48

                                        Never been posh enough to have an electric start DT so wouldn't know 😉

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                                        • O Offline
                                          O Offline
                                          oldman
                                          wrote on last edited by
                                          #49

                                          Nice colour red though😋

                                          T 1 Reply Last reply
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