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DT125R FORUM

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  4. Hello all

Hello all

Scheduled Pinned Locked Moved Welcome New Owners!
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  • CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #21

    Lovely, have you any photos of the NSR?

    The thing I'll say about the DT, I've had mine nearly 13+ years and it's literally never let me down. I've not daily'd it for a few years and it's now a weekend warrior, with the occasional trip to work if I cannot be bothered to cycle, but it's a dependable little bike. Mine got stolen and wrecked beyond recognition. The situation at the time meant I didn't have money for a new bike, but always fancied a supermoto so I ended up with a modified DTR. But dayum, in original condition these days, the bikes sell for a pretty penny.

    Always Originate, Never Pirate!

    1 Reply Last reply
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    • M mcludd

      Well had another round with the Deet from hell, I was following a wiring diagram from the internet but it looked OK it showed 2 x 6 wire connectors and 1 x 4 way connectors going into the CDI which is what mine has anyway what I found was there is a 12v feed going into the CDI on ignition live through the black blue wire from the servo connector there is also a 12v feed comes from the black red wire coming from the alternator when the engine is running, also found out my new old CDI doesn't spark when encouraged so that is totally useless and obviously its going back the other thing I found was that it seems there is no volts coming out of the alternator with the engine running so probably a dud stator but still to pull the flywheel to investigate that one.Oh and the red wire, this best I can tell was a live supply to an optional alarm which I dont have so I have blanked it off
      Anyhoo to summarise I have a replacement duff CDI my original CDI which may or may not be any good servo wise but it does make sparks unlike its replacement - an alternator that makes no volts and a PV servo which I know works but does not on this bike

      S Offline
      S Offline
      SpookDog
      wrote on last edited by SpookDog
      #22

      @mcludd

      It wouldn’t be running if it wasn’t putting something out.
      I’m guessing that the lights work when you turn the key? Indicators, horn Yada-Yada?
      The battery is charging?…

      Bitch about the CDI!

      If there’s a duff wire from the stator it could be a dry solder or broken wire.
      Flywheel pullers are cheap enough. Just make sure you get the proper thread sided one! I don’t know if it’s left or right. Callum will prolly know 🙂 …

      I ended up buying both! 🫤 …

      PS please let us know about the rest of the electrics!! 🙂 …

      1 Reply Last reply
      0
      • M Offline
        M Offline
        mcludd
        wrote on last edited by
        #23

        I had a transit battery jump leaded to it and with the engine running it was showing 12.6v but no increase with revs so I disconnected the transit battery and went back to the deet one alone which was now at 11.7v and again no voltage increase with revs, need to see if there is anything coming out of the alternator phase wires next (I suspect not) if thats the case then the stator is goosed or if there is then the rectifier/reg is done for - will see what tomorrow brings if I have a spare hour

        S 1 Reply Last reply
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        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #24

          Should be 14.4V when engines running so something isn't right there.

          Always Originate, Never Pirate!

          1 Reply Last reply
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          • M mcludd

            I had a transit battery jump leaded to it and with the engine running it was showing 12.6v but no increase with revs so I disconnected the transit battery and went back to the deet one alone which was now at 11.7v and again no voltage increase with revs, need to see if there is anything coming out of the alternator phase wires next (I suspect not) if thats the case then the stator is goosed or if there is then the rectifier/reg is done for - will see what tomorrow brings if I have a spare hour

            S Offline
            S Offline
            SpookDog
            wrote on last edited by SpookDog
            #25

            @mcludd

            Again with the lights & ancillaries?!…

            I’ve got a spare DC only RR. Check the markings on yours to see if it’s compatible…

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            • M Offline
              M Offline
              mcludd
              wrote on last edited by mcludd
              #26

              Making some progress I think, I checked the phase wires from the alternator and got 20v, 30v and zero!!!!!! thats a phase down then, so I took off the rotor (no thread for an extractor but 3 M8 jacking holes, I used one of these and managed to miss the windings gave it a clunk with a hammer and it fell off on the floor. Here's where it gets interesting, instead of a 12 segment plus HT stator there is a 6 segment plus HT also no sign of any burnt windings
              [img]https://i.imgur.com/etmh7JU.jpg[/img]

              Must be a break in continuity between alternator and rectifier then I think so I start to have a dig in the wires and FFS!!!!
              [img]https://i.imgur.com/ydrP70S.jpg[/img]

              So an hour or so later shrink wrappery and solder
              [img]https://i.imgur.com/jLWlxqx.jpg[/img]

              Brilliant all done you might think, well errr not so the diagram shows that there should be a further wire coming from the alternator up to the CDI (green/blue) and I have it making the journey from the multi plug to the CDI but not coming from the alternator - BUGGER!!!!!

              [img]https://i.imgur.com/ct10W8V.jpg[/img]

              So here's my thoughts, this is an earlier engine (no electric start no sprag clutch no hole in the cases for a starter motor) with an earlier engine which due to the lack of I assume signal wire to the CDI is not compatible with the CDI I have, my options are as far as I can see fit a later model rotor and stator. graft an earlier model CDI (possibly an earlier wiring harness?) Break the bugger and cut my losses

              CalumC 1 Reply Last reply
              0
              • M mcludd

                Making some progress I think, I checked the phase wires from the alternator and got 20v, 30v and zero!!!!!! thats a phase down then, so I took off the rotor (no thread for an extractor but 3 M8 jacking holes, I used one of these and managed to miss the windings gave it a clunk with a hammer and it fell off on the floor. Here's where it gets interesting, instead of a 12 segment plus HT stator there is a 6 segment plus HT also no sign of any burnt windings
                [img]https://i.imgur.com/etmh7JU.jpg[/img]

                Must be a break in continuity between alternator and rectifier then I think so I start to have a dig in the wires and FFS!!!!
                [img]https://i.imgur.com/ydrP70S.jpg[/img]

                So an hour or so later shrink wrappery and solder
                [img]https://i.imgur.com/jLWlxqx.jpg[/img]

                Brilliant all done you might think, well errr not so the diagram shows that there should be a further wire coming from the alternator up to the CDI (green/blue) and I have it making the journey from the multi plug to the CDI but not coming from the alternator - BUGGER!!!!!

                [img]https://i.imgur.com/ct10W8V.jpg[/img]

                So here's my thoughts, this is an earlier engine (no electric start no sprag clutch no hole in the cases for a starter motor) with an earlier engine which due to the lack of I assume signal wire to the CDI is not compatible with the CDI I have, my options are as far as I can see fit a later model rotor and stator. graft an earlier model CDI (possibly an earlier wiring harness?) Break the bugger and cut my losses

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #27

                @mcludd I literally fixed and then @ you about how to embed photos #12.

                Always Originate, Never Pirate!

                M 1 Reply Last reply
                0
                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by Calum
                  #28

                  @mcludd Yes, this bike seems to have been butchered around. That stator is not for that type of ignition system.

                  I cannot comment on whether "it'll work" or not, however as you've pointed out, it's not the correct CDI for the year and these things can be difficult to diagnose when it is all a mishmash and without official Yamaha knowledge.

                  What I have done in the past is swapped out the entire ignition system to match compatibility. I ran an earlier engine, swapped out the crank/flywheel and stator together to use a newer ignition system. Since that means splitting the cases, it's involved, that's okay I was rebuilding the engine, had the cases already split deciding what to do. It involved plenty of research before hand chatting to @scrimsmustang to understand the picture.

                  I can see the correct CDIs on ebay:

                  https://www.ebay.co.uk/itm/305299020174?hash=item47153d598e:g:TJkAAOSwSAFlbQko&amdata=enc%3AAQAIAAAA0JV5FQjdwZXK%2BV5F2MV8Re3FLVtTMaqk%2B1SjDSMkU7bF4QDwjLDuH2WUKRNSd0h6IP8pniDc4wGArTwAIVNMp0fgVhPNYkhoViDOS465RrGNm6BSrSr1Im0QJRy3R%2BSq9T7pwpOZPh5r0bBBlaorlCCAdWEjchaKTL4rUJtmaZY1K6JPakwx%2FeyciLApHHtm7I0snFk%2BlUR%2BUzyhz6uc6RW66v27E18HnCm3Hc3srqTBv1BMCb%2Fgz6g12jb71N10SS%2Banx%2BmY6a8WPY4T5B7JdQ%3D|tkp%3ABk9SR7iX8M6GYw


                  https://www.ebay.co.uk/itm/375093889155?hash=item5755568883:g:ysIAAOSwaddlaeZv&amdata=enc%3AAQAIAAAAwP5VylX9Bxl5XJe0hoBxOJUjyAh02Xio4KmVKz23Al6VUK64Mo2fJIgVASoE7iwodqbYlpWeZdU87aGVSsqnvAr3%2FZZYCTOIatChE5%2FL%2FOokyHH5zVV3DVP924u%2F3UMIB%2FZGogvFaJIgBjMfOWomyKsdg6OSLq%2FoDy1wAHN4766Yxp28wwa3iBEqhsKKPNH3neZp7Zk0xB4xh6rxek41mhlgSaNe3vemIZV3nU6%2BRPLaAIrTqbwy1dN0qZEl2SUvZg%3D%3D|tkp%3ABk9SR5iZ7M6GYw

                  If it were me, I'd be looking to restore the original CDI, or better still get an Ignitech or Zeeltronic as the CDIs I've linked you to can be terribly restrictive.

                  One of those CDIs should be the one you need, I don't know for certain you'll have to do some digging around.

                  Always Originate, Never Pirate!

                  S 1 Reply Last reply
                  0
                  • CalumC Calum

                    @mcludd Yes, this bike seems to have been butchered around. That stator is not for that type of ignition system.

                    I cannot comment on whether "it'll work" or not, however as you've pointed out, it's not the correct CDI for the year and these things can be difficult to diagnose when it is all a mishmash and without official Yamaha knowledge.

                    What I have done in the past is swapped out the entire ignition system to match compatibility. I ran an earlier engine, swapped out the crank/flywheel and stator together to use a newer ignition system. Since that means splitting the cases, it's involved, that's okay I was rebuilding the engine, had the cases already split deciding what to do. It involved plenty of research before hand chatting to @scrimsmustang to understand the picture.

                    I can see the correct CDIs on ebay:

                    https://www.ebay.co.uk/itm/305299020174?hash=item47153d598e:g:TJkAAOSwSAFlbQko&amdata=enc%3AAQAIAAAA0JV5FQjdwZXK%2BV5F2MV8Re3FLVtTMaqk%2B1SjDSMkU7bF4QDwjLDuH2WUKRNSd0h6IP8pniDc4wGArTwAIVNMp0fgVhPNYkhoViDOS465RrGNm6BSrSr1Im0QJRy3R%2BSq9T7pwpOZPh5r0bBBlaorlCCAdWEjchaKTL4rUJtmaZY1K6JPakwx%2FeyciLApHHtm7I0snFk%2BlUR%2BUzyhz6uc6RW66v27E18HnCm3Hc3srqTBv1BMCb%2Fgz6g12jb71N10SS%2Banx%2BmY6a8WPY4T5B7JdQ%3D|tkp%3ABk9SR7iX8M6GYw


                    https://www.ebay.co.uk/itm/375093889155?hash=item5755568883:g:ysIAAOSwaddlaeZv&amdata=enc%3AAQAIAAAAwP5VylX9Bxl5XJe0hoBxOJUjyAh02Xio4KmVKz23Al6VUK64Mo2fJIgVASoE7iwodqbYlpWeZdU87aGVSsqnvAr3%2FZZYCTOIatChE5%2FL%2FOokyHH5zVV3DVP924u%2F3UMIB%2FZGogvFaJIgBjMfOWomyKsdg6OSLq%2FoDy1wAHN4766Yxp28wwa3iBEqhsKKPNH3neZp7Zk0xB4xh6rxek41mhlgSaNe3vemIZV3nU6%2BRPLaAIrTqbwy1dN0qZEl2SUvZg%3D%3D|tkp%3ABk9SR5iZ7M6GYw

                    If it were me, I'd be looking to restore the original CDI, or better still get an Ignitech or Zeeltronic as the CDIs I've linked you to can be terribly restrictive.

                    One of those CDIs should be the one you need, I don't know for certain you'll have to do some digging around.

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by SpookDog
                    #29

                    @Calum

                    There is a place in France (ask hotshot) that sells a conical ‘shim’ that fits over a non RE crank that will make it accept the back to front rotor. All you’d need then is an ally side casing (which I have a spare) and an RE stator & rotor …

                    That should make it plug and play again!…

                    S 1 Reply Last reply
                    1
                    • S SpookDog

                      @Calum

                      There is a place in France (ask hotshot) that sells a conical ‘shim’ that fits over a non RE crank that will make it accept the back to front rotor. All you’d need then is an ally side casing (which I have a spare) and an RE stator & rotor …

                      That should make it plug and play again!…

                      S Offline
                      S Offline
                      SpookDog
                      wrote on last edited by
                      #30

                      I don’t see any way that a late RE loom will mesh with an early CDI. I thought it had the original RE motor in it with the reversed rotor and coils bolted to the side casing…

                      S 1 Reply Last reply
                      0
                      • S SpookDog

                        I don’t see any way that a late RE loom will mesh with an early CDI. I thought it had the original RE motor in it with the reversed rotor and coils bolted to the side casing…

                        S Offline
                        S Offline
                        SpookDog
                        wrote on last edited by SpookDog
                        #31

                        fleabay

                        Don’t have rotor tho

                        cone shim

                        Ouch£€$¥!!…

                        1 Reply Last reply
                        1
                        • CalumC Calum

                          @mcludd I literally fixed and then @ you about how to embed photos #12.

                          M Offline
                          M Offline
                          mcludd
                          wrote on last edited by mcludd
                          #32

                          @Calum said in Hello all:

                          @mcludd I literally fixed and then @ you about how to embed photos #12.

                          I appreciate the fixing but I haven't a clue what (www.example.com/image.jpg) means I'm afraid

                          1 Reply Last reply
                          0
                          • M Offline
                            M Offline
                            mcludd
                            wrote on last edited by
                            #33

                            Wowee 69 european pounds for a shim then a cover a rotor and a stator, sounds like heaps of money to me.
                            I will see what the whole lot is going to come to and go from there

                            S 1 Reply Last reply
                            0
                            • M mcludd

                              Wowee 69 european pounds for a shim then a cover a rotor and a stator, sounds like heaps of money to me.
                              I will see what the whole lot is going to come to and go from there

                              S Offline
                              S Offline
                              SpookDog
                              wrote on last edited by SpookDog
                              #34

                              @mcludd

                              What did the bike cost?…

                              When you’ve hosted a pic at Imgur, or whatever. At the top of your post, on the tool bar, there is an oblong that looks like a picture frame with 2 mountains and a star (between the 2 chain links and the smiley face) Tap that then paste in the ‘copy link’ from Imgur. It will show your pics…

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                              • M Offline
                                M Offline
                                mcludd
                                wrote on last edited by
                                #35

                                1500 quid

                                S 1 Reply Last reply
                                0
                                • M Offline
                                  M Offline
                                  mcludd
                                  wrote on last edited by mcludd
                                  #36

                                  ![alt text](image urlhttps://imgur.com/WMVHrzb![alt text](image url)![alt text](image urlhttps://i.imgur.com/WMVHrzb.jpg

                                  1 Reply Last reply
                                  0
                                  • M Offline
                                    M Offline
                                    mcludd
                                    wrote on last edited by
                                    #37

                                    ![alt text](image url[img]https://i.imgur.com/WMVHrzb.jpg[/img]

                                    Tried and failed I think?

                                    1 Reply Last reply
                                    0
                                    • M mcludd

                                      1500 quid

                                      S Offline
                                      S Offline
                                      SpookDog
                                      wrote on last edited by
                                      #38

                                      @mcludd

                                      Gonna be a couple hundred quid. The feabay seller problem has the rotor. The shims the fuxor! Can’t be easy to make that puppy though!…

                                      Still a viable bike if it’s in good enough condition…

                                      S 1 Reply Last reply
                                      0
                                      • S SpookDog

                                        @mcludd

                                        Gonna be a couple hundred quid. The feabay seller problem has the rotor. The shims the fuxor! Can’t be easy to make that puppy though!…

                                        Still a viable bike if it’s in good enough condition…

                                        S Offline
                                        S Offline
                                        SpookDog
                                        wrote on last edited by SpookDog
                                        #39

                                        @SpookDog

                                        alt text

                                        The copied link has to go between the ( ) brackets

                                        Make sure the ‘image url’ is deleted if the paste doesn’t go smoothly. Otherwise I’ll corrupt…

                                        1 Reply Last reply
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                                        • M Offline
                                          M Offline
                                          mcludd
                                          wrote on last edited by
                                          #40

                                          alt text
                                          ![alt text](https://imgur.com/RM8POtialt text)

                                          By jingo I think I have got it!!

                                          S HOTSHOT IIIH 2 Replies Last reply
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