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  4. DT125R 2002 Won't start for love of god

DT125R 2002 Won't start for love of god

Scheduled Pinned Locked Moved DTR
23 Posts 2 Posters 369 Views
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  • CalumC
    CalumC
    Calum
    wrote last edited by
    #14

    I would say that both @hannahharris & @joshuaseward look like bots to me.

    It's difficult to say whether what they are saying is completely accurate or not, sounds feasible 🤣

    Always Originate, Never Pirate!

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    • CalumC Calum

      I would say that both @hannahharris & @joshuaseward look like bots to me.

      It's difficult to say whether what they are saying is completely accurate or not, sounds feasible 🤣

      C
      C
      Croeternal
      wrote last edited by
      #15

      @Calum well i have an update, im not expert electrician by no means but i know some stuff, started taking everything off and tested bunch of stuff, first of all coil is gone, it test OL on every combination of terminals possible, so good i ordered genuine one, i just dont get why it still sparks. Power valve on servo has been messed with the cables are way too long and look like they have been wraped around te servo rotor or whatever but i cannot get bottom part out near engine as one screw is stripped and i didnt have time to deal with that, so i will be ordering new cables probably when i open bottom part as its possible its been pinned. I have one question and im not sure if thats normal or what, i have 7ohm resistance on battery terminals, when key is ON and if on beeper it beeps, when key is off it doesnt beep and resistance is OL..

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      • C
        C
        Croeternal
        wrote last edited by
        #16

        Another update, seems like it was fitted with powervalve servo from tzr125, hence why cables are crossed but still follow 1-1 2-2 arrangment i need to wait for battery to come in order to see if thats what setup should be in order to open properly

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        • C
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          Croeternal
          wrote last edited by
          #17

          I may have stumbled across something and i need your help, new geniune coil, snorkel, reed valves, everything nice and seal same issue runs bit longer but nothing bogs down as soon as i touch gas that being said should there be a brass ball in the middle hole of the carburator? From the intake side picture uploaded in file? If so what is its purpose, can i plug it in?

          https://gofile.io/d/a3c76865-740e-41b5-bc6d-3f4b5cf8934b

          C 1 Reply Last reply
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          • C Croeternal

            I may have stumbled across something and i need your help, new geniune coil, snorkel, reed valves, everything nice and seal same issue runs bit longer but nothing bogs down as soon as i touch gas that being said should there be a brass ball in the middle hole of the carburator? From the intake side picture uploaded in file? If so what is its purpose, can i plug it in?

            https://gofile.io/d/a3c76865-740e-41b5-bc6d-3f4b5cf8934b

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            C
            Croeternal
            wrote last edited by
            #18

            @calum would you know? If it needs to be plugged there could be my huge air issue..

            1 Reply Last reply
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            • CalumC
              CalumC
              Calum
              wrote last edited by
              #19

              The gofile is protected so can't see it.

              If you spray some WD40 in there, does it then run?

              Always Originate, Never Pirate!

              C 1 Reply Last reply
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              • CalumC Calum

                The gofile is protected so can't see it.

                If you spray some WD40 in there, does it then run?

                C
                C
                Croeternal
                wrote last edited by
                #20

                @Calum https://imgur.com/a/jK2SHIF

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                • C Croeternal

                  @Calum https://imgur.com/a/jK2SHIF

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                  Croeternal
                  wrote last edited by
                  #21

                  @calum the more i think about it the more it makes sense to me, foubd couple of pictures online and all of them have brass ball fitted, im just not sure if its fixed or its with spring, also found that the part is ventilation channel to the main nozzle/mixing tube, closed by a pressed-in ball, on here:
                  https://dtpedia.de/mediawiki/index.php/Vergaser:_Mikuni_TM28SS

                  No wonder it would bog and not idle, air going strait to main nozzle and airscrew having little to no effect..

                  1 Reply Last reply
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                  • CalumC
                    CalumC
                    Calum
                    wrote last edited by
                    #22

                    Sadly Imgur is blocked in the UK so I can't see that either.

                    Always Originate, Never Pirate!

                    1 Reply Last reply
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                    • CalumC
                      CalumC
                      Calum
                      wrote last edited by
                      #23

                      Yeah, it didn't sound great.

                      If that's the case, you could try duct taping your airbox up to restrict the air flow. This might help richen the mixture and therefore it might idle.

                      Or fix your problem.

                      Always Originate, Never Pirate!

                      1 Reply Last reply
                      0

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