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DT125R FORUM

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  4. Why doesn't my DT125 get a spark?

Why doesn't my DT125 get a spark?

Scheduled Pinned Locked Moved Electrics
electricsstatorcdisparkcdi. power. dt
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  • O Offline
    O Offline
    oldman
    wrote on last edited by
    #3

    Change the spark plug anyway. Low cost item and can then be ruled our completely

    clawsC 1 Reply Last reply
    0
    • CalumC Calum

      Common issues on these bikes tend to be, side stand switch, neutral switch and kill switch. Make sure those are good.

      Check the ignition barrel connector block, you may have disturbed it when faffing about.

      Easiest way to sort the power valve out is to take the exhaust off and line the valve up with the port directly.

      clawsC Offline
      clawsC Offline
      claws
      wrote on last edited by
      #4

      @Calum I could open up the kill switch and see if that is working correctly. I doubt that the main switch or the side stand switch have something wrong with them since the rear light turns on when I flip the power on and I don't have a side stand switch actually

      2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
      1999 YZ250 with a 1999 DTR VIN

      1 Reply Last reply
      0
      • O oldman

        Change the spark plug anyway. Low cost item and can then be ruled our completely

        clawsC Offline
        clawsC Offline
        claws
        wrote on last edited by
        #5

        @oldman yea I think I could switch a new plug in when I fix the bike. Just a bit shitty that the iridium plug stopped working after like one month

        2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
        1999 YZ250 with a 1999 DTR VIN

        NINJAN 1 Reply Last reply
        0
        • clawsC claws

          @oldman yea I think I could switch a new plug in when I fix the bike. Just a bit shitty that the iridium plug stopped working after like one month

          NINJAN Offline
          NINJAN Offline
          NINJA
          wrote on last edited by NINJA
          #6

          @claws Iridium plugs tend to have a shorter lifespan over regular plugs. Mainly due to the stronger spark they produce. I used Iridium plugs in my DTR and noticed a definite drop in performance after a month's use. As plugs are as cheap_as_chips they are an easy component to replace. 😉

          SEDUCED BY THE DARK SIDE!!!

          clawsC 1 Reply Last reply
          0
          • NINJAN NINJA

            @claws Iridium plugs tend to have a shorter lifespan over regular plugs. Mainly due to the stronger spark they produce. I used Iridium plugs in my DTR and noticed a definite drop in performance after a month's use. As plugs are as cheap_as_chips they are an easy component to replace. 😉

            clawsC Offline
            clawsC Offline
            claws
            wrote on last edited by
            #7

            @NINJA kinda disappointing to spend 15 euros for a plug that doesnt even work for a month though. will go with the ngk br9es plug from now on since its like 4 euros

            2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
            1999 YZ250 with a 1999 DTR VIN

            NINJAN 1 Reply Last reply
            0
            • clawsC claws

              @NINJA kinda disappointing to spend 15 euros for a plug that doesnt even work for a month though. will go with the ngk br9es plug from now on since its like 4 euros

              NINJAN Offline
              NINJAN Offline
              NINJA
              wrote on last edited by
              #8

              @claws The iridium plugs are cheaper on ebay, especially if you buy 4 at a time like I do; :winking_face: :grinning_face_with_smiling_eyes: :winking_face:

              https://www.ebay.co.uk/itm/BR10EIX-NGK-Spark-Plug-Sparkplug-Type-Iridium-IX-NEW-No-6801/272479003527?hash=item3f7103a387:g:OWUAAOSwo4pYSYqN

              SEDUCED BY THE DARK SIDE!!!

              1 Reply Last reply
              0
              • CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #9

                I have had the same iridium for years. My starlet has had the same iridium for years too.

                Always Originate, Never Pirate!

                1 Reply Last reply
                0
                • D Offline
                  D Offline
                  DTRLuke
                  wrote on last edited by
                  #10

                  Yes, not normal for any spark plug to be needing replacement within a month. It'd say something about how your engine is running. Too lean or too rich.

                  clawsC 1 Reply Last reply
                  0
                  • D DTRLuke

                    Yes, not normal for any spark plug to be needing replacement within a month. It'd say something about how your engine is running. Too lean or too rich.

                    clawsC Offline
                    clawsC Offline
                    claws
                    wrote on last edited by
                    #11

                    @DTRLuke the stock carburetor was running pretty badly and i couldnt really tune it either since the screws were seized so i switched to a 36mm keihin pwk. it was running pretty good actually until i switched a few things including the fuel tank

                    2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                    1999 YZ250 with a 1999 DTR VIN

                    D 1 Reply Last reply
                    0
                    • clawsC claws

                      @DTRLuke the stock carburetor was running pretty badly and i couldnt really tune it either since the screws were seized so i switched to a 36mm keihin pwk. it was running pretty good actually until i switched a few things including the fuel tank

                      D Offline
                      D Offline
                      DTRLuke
                      wrote on last edited by
                      #12

                      @claws
                      You can buy chinese remade DT carbs, a few people have them on their bikes. A lot probably don't even realise they have a fake carb.

                      declanD clawsC 2 Replies Last reply
                      0
                      • D DTRLuke

                        @claws
                        You can buy chinese remade DT carbs, a few people have them on their bikes. A lot probably don't even realise they have a fake carb.

                        declanD Offline
                        declanD Offline
                        declan
                        wrote on last edited by
                        #13

                        @DTRLuke yeah they’re only 50 pound look decent

                        NINJAN 1 Reply Last reply
                        0
                        • declanD declan

                          @DTRLuke yeah they’re only 50 pound look decent

                          NINJAN Offline
                          NINJAN Offline
                          NINJA
                          wrote on last edited by
                          #14

                          @declan £50 quid - BARGAIN!!!

                          SEDUCED BY THE DARK SIDE!!!

                          declanD 1 Reply Last reply
                          0
                          • D DTRLuke

                            @claws
                            You can buy chinese remade DT carbs, a few people have them on their bikes. A lot probably don't even realise they have a fake carb.

                            clawsC Offline
                            clawsC Offline
                            claws
                            wrote on last edited by
                            #15

                            @DTRLuke actually paid around 50 pounds for the keihin carburetor

                            2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                            1999 YZ250 with a 1999 DTR VIN

                            D 1 Reply Last reply
                            0
                            • NINJAN NINJA

                              @declan £50 quid - BARGAIN!!!

                              declanD Offline
                              declanD Offline
                              declan
                              wrote on last edited by
                              #16

                              @NINJA yeah it really isn’t a bad price

                              1 Reply Last reply
                              0
                              • clawsC claws

                                @DTRLuke actually paid around 50 pounds for the keihin carburetor

                                D Offline
                                D Offline
                                DTRLuke
                                wrote on last edited by DTRLuke
                                #17

                                @claws The Keihin carb is probably also fake. Most carb's are fake on eBay etc. If you order one directly from Yamaha, then it's most probably OEM, but will be double the price of the fake.

                                clawsC 1 Reply Last reply
                                1
                                • D DTRLuke

                                  @claws The Keihin carb is probably also fake. Most carb's are fake on eBay etc. If you order one directly from Yamaha, then it's most probably OEM, but will be double the price of the fake.

                                  clawsC Offline
                                  clawsC Offline
                                  claws
                                  wrote on last edited by
                                  #18

                                  @DTRLuke no no no i bought the carburetor as a used one that was taken from a ktm exc 125

                                  2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                                  1999 YZ250 with a 1999 DTR VIN

                                  declanD 1 Reply Last reply
                                  0
                                  • clawsC claws

                                    @DTRLuke no no no i bought the carburetor as a used one that was taken from a ktm exc 125

                                    declanD Offline
                                    declanD Offline
                                    declan
                                    wrote on last edited by
                                    #19

                                    @claws still could be fake

                                    clawsC 1 Reply Last reply
                                    0
                                    • declanD declan

                                      @claws still could be fake

                                      clawsC Offline
                                      clawsC Offline
                                      claws
                                      wrote on last edited by
                                      #20

                                      @declan well yea but since the carburetor works i dont really care

                                      2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                                      1999 YZ250 with a 1999 DTR VIN

                                      1 Reply Last reply
                                      0
                                      • clawsC Offline
                                        clawsC Offline
                                        claws
                                        wrote on last edited by
                                        #21

                                        oh yea i found the issue. one wire had broken and after i fixed it, my stator blew the same night i got the bike working

                                        2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                                        1999 YZ250 with a 1999 DTR VIN

                                        NINJAN 1 Reply Last reply
                                        1
                                        • clawsC claws

                                          oh yea i found the issue. one wire had broken and after i fixed it, my stator blew the same night i got the bike working

                                          NINJAN Offline
                                          NINJAN Offline
                                          NINJA
                                          wrote on last edited by
                                          #22

                                          @claws Tough luck dude.

                                          SEDUCED BY THE DARK SIDE!!!

                                          clawsC 1 Reply Last reply
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