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DT125R FORUM

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  4. Derestrict yamaha dt 125 r 1997

Derestrict yamaha dt 125 r 1997

Scheduled Pinned Locked Moved Derestricting
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  • Mr ShadiM Mr Shadi

    @Mr-Shadi i moved the reed switch, cut wires and did a lot of things but when the reed is out of its slot the bike won't rev over 6k in 2nd 3rd 4th 5th and 6th gear, but when the reed is in its slot it only doesn't rev when 80km/h. I even pulled the reed out a little bit and it didnt rev over 6k. Very weird

    S Offline
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    SpookDog
    wrote on last edited by
    #39

    @Mr-Shadi
    That is weird! It’s good that you’re experimenting with it…
    I think that you might have the one that needs a CDI wire cut and earthed. I’ll try and do some reading and let you know 🙂 …

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    • S SpookDog

      @Mr-Shadi
      That is weird! It’s good that you’re experimenting with it…
      I think that you might have the one that needs a CDI wire cut and earthed. I’ll try and do some reading and let you know 🙂 …

      S Offline
      S Offline
      SpookDog
      wrote on last edited by
      #40

      Look for a green/black wire on your CDI unit. Let me know if you find one…

      Mr ShadiM 1 Reply Last reply
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      • S SpookDog

        Look for a green/black wire on your CDI unit. Let me know if you find one…

        Mr ShadiM Offline
        Mr ShadiM Offline
        Mr Shadi
        wrote on last edited by
        #41

        @SpookDog i dont see one. here are some pics 6c8a5cb4-873d-456c-a360-ec6e7030eb31-image.png 7f33e7d3-cb1f-465d-bd87-3606c30dff18-image.png 76aeb926-e8c3-4684-8174-9f02e07c0ee5-image.png ![19f897dc-660c-4bb7-8758-aba0143aa7bd-image.png](/assets/uploads/files/1682163242666-19f897dc-660c-4bb7-8758-50f10cb4-1e93-4f31-8e89-9ec27a4c0055-image.png aba0143aa7bd-image.png) 376af406-420c-4914-94fd-da74734ab6cd-image.png

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        • Mr ShadiM Mr Shadi

          @SpookDog i dont see one. here are some pics 6c8a5cb4-873d-456c-a360-ec6e7030eb31-image.png 7f33e7d3-cb1f-465d-bd87-3606c30dff18-image.png 76aeb926-e8c3-4684-8174-9f02e07c0ee5-image.png ![19f897dc-660c-4bb7-8758-aba0143aa7bd-image.png](/assets/uploads/files/1682163242666-19f897dc-660c-4bb7-8758-50f10cb4-1e93-4f31-8e89-9ec27a4c0055-image.png aba0143aa7bd-image.png) 376af406-420c-4914-94fd-da74734ab6cd-image.png

          S Offline
          S Offline
          SpookDog
          wrote on last edited by
          #42

          @Mr-Shadi

          It might be a different colour on account of the weird RN thing…

          From what I’ve read people move the reed switch then cut & earth a black/green wire…

          Mr ShadiM S 2 Replies Last reply
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          • S SpookDog

            @Mr-Shadi

            It might be a different colour on account of the weird RN thing…

            From what I’ve read people move the reed switch then cut & earth a black/green wire…

            Mr ShadiM Offline
            Mr ShadiM Offline
            Mr Shadi
            wrote on last edited by
            #43

            @SpookDog i think if i take the other bikes wiring diagram with black green and then my wiring diagram and then determine witch wire does what. like compare the wire colors for example its bike has red wire as power mine has orange. just a example not reality.

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            • S SpookDog

              @Mr-Shadi

              It might be a different colour on account of the weird RN thing…

              From what I’ve read people move the reed switch then cut & earth a black/green wire…

              S Offline
              S Offline
              SpookDog
              wrote on last edited by
              #44

              Hang on bud! Your bike is a Dt125RN you said? Did you mean a Dtr125 3rn? This would make more sense! 🙄

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              • S SpookDog

                Hang on bud! Your bike is a Dt125RN you said? Did you mean a Dtr125 3rn? This would make more sense! 🙄

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                S Offline
                SpookDog
                wrote on last edited by SpookDog
                #45

                Just counted CDI wires on the 3rn diagram in my Haynes manual and it says 11 wires from the CDI. How many have you got?…
                I’m just curious cause it doesn’t show the reed switch or any wiring to the speedo on the diagram, guess they wouldn’t show the restriction though! 🙂 …

                Mr ShadiM 1 Reply Last reply
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                • S SpookDog

                  Just counted CDI wires on the 3rn diagram in my Haynes manual and it says 11 wires from the CDI. How many have you got?…
                  I’m just curious cause it doesn’t show the reed switch or any wiring to the speedo on the diagram, guess they wouldn’t show the restriction though! 🙂 …

                  Mr ShadiM Offline
                  Mr ShadiM Offline
                  Mr Shadi
                  wrote on last edited by
                  #46

                  @SpookDog it has 18 wires. 3 cdi connectors with 6 wires each.

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                  • Mr ShadiM Mr Shadi

                    @SpookDog i also looked under the speedo and there is a white little box with blue and green red wire coming out of it. i tought it was a light but when i looked it had a little space between 2 metal thingies in it and it was covered with glass. Is that the reed switch?

                    markus.wM Offline
                    markus.wM Offline
                    markus.w
                    wrote on last edited by
                    #47

                    @Mr-Shadi this is a reed switch. If you look at it, it looks to be a broken fuse. When the speedo hits 61 mph it sends an electro magnetic signal and closes the switch which retards the ignition and closes the powervalve back up. Either move it far away from the clocks so the magnet can't reach it or cut it off and keep the wires apart.

                    Mr ShadiM 2 Replies Last reply
                    1
                    • markus.wM markus.w

                      @Mr-Shadi this is a reed switch. If you look at it, it looks to be a broken fuse. When the speedo hits 61 mph it sends an electro magnetic signal and closes the switch which retards the ignition and closes the powervalve back up. Either move it far away from the clocks so the magnet can't reach it or cut it off and keep the wires apart.

                      Mr ShadiM Offline
                      Mr ShadiM Offline
                      Mr Shadi
                      wrote on last edited by
                      #48

                      @markus-w if i cut it off the bike wount rev over 6k and if i move it it randomly restricts it to 6k rpm. then i need to come to a stop and it revs over 6k.

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                      • markus.wM markus.w

                        @Mr-Shadi this is a reed switch. If you look at it, it looks to be a broken fuse. When the speedo hits 61 mph it sends an electro magnetic signal and closes the switch which retards the ignition and closes the powervalve back up. Either move it far away from the clocks so the magnet can't reach it or cut it off and keep the wires apart.

                        Mr ShadiM Offline
                        Mr ShadiM Offline
                        Mr Shadi
                        wrote on last edited by
                        #49

                        @markus-w and my reed switch allows me to go only 80km/h thats 49.7097 mph

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                        • Mr ShadiM Mr Shadi

                          @markus-w and my reed switch allows me to go only 80km/h thats 49.7097 mph

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                          SpookDog
                          wrote on last edited by
                          #50

                          @Mr-Shadi

                          We need to find out what wires need to be cut and earthed. On my tzr 4hw there are 2 wires that have been cut, joined and earthed by previous owners. A black with lavender-blue stripe and a grey…

                          Mr ShadiM 1 Reply Last reply
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                          • S SpookDog

                            @Mr-Shadi

                            We need to find out what wires need to be cut and earthed. On my tzr 4hw there are 2 wires that have been cut, joined and earthed by previous owners. A black with lavender-blue stripe and a grey…

                            Mr ShadiM Offline
                            Mr ShadiM Offline
                            Mr Shadi
                            wrote on last edited by
                            #51

                            @SpookDog that would be the thing if there was a good electrical scheme of my 4bl 1997 bike

                            Mr ShadiM 1 Reply Last reply
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                            • Mr ShadiM Mr Shadi

                              @SpookDog that would be the thing if there was a good electrical scheme of my 4bl 1997 bike

                              Mr ShadiM Offline
                              Mr ShadiM Offline
                              Mr Shadi
                              wrote on last edited by
                              #52

                              @Mr-Shadi in one of the manuals there is this 07b89341-0873-4a04-9968-850213697628-image.png

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                              • S Offline
                                S Offline
                                SpookDog
                                wrote on last edited by SpookDog
                                #53

                                I’ll look for a 4bl (I’ve never heard of a 4BL, you sure it’s not 4DL?) wiring diagram…

                                It is bl just checked

                                S Mr ShadiM 2 Replies Last reply
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                                • S SpookDog

                                  I’ll look for a 4bl (I’ve never heard of a 4BL, you sure it’s not 4DL?) wiring diagram…

                                  It is bl just checked

                                  S Offline
                                  S Offline
                                  SpookDog
                                  wrote on last edited by SpookDog
                                  #54

                                  What colour is the wire going to the reed switch? Also what colour wire returns from it, if different?…

                                  is it red/blue?! with a white/black wire returning?!

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                                  • Mr ShadiM Mr Shadi

                                    @Mr-Shadi i moved the reed switch, cut wires and did a lot of things but when the reed is out of its slot the bike won't rev over 6k in 2nd 3rd 4th 5th and 6th gear, but when the reed is in its slot it only doesn't rev when 80km/h. I even pulled the reed out a little bit and it didnt rev over 6k. Very weird

                                    markus.wM Offline
                                    markus.wM Offline
                                    markus.w
                                    wrote on last edited by
                                    #55

                                    @Mr-Shadi you have the 4BL model, that's the later one with the reed switch but I guess you must have the restricted 3RM-10 CDI?

                                    Mr ShadiM 1 Reply Last reply
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                                    • Hybrid_Theory01H Offline
                                      Hybrid_Theory01H Offline
                                      Hybrid_Theory01
                                      wrote on last edited by Hybrid_Theory01
                                      #56

                                      Hey guys, my CDI has 2 plugs with like 4 wires coming out and plugging into themselfs, has anyone seen this before or should I send a picture to this chat? Its at least weird but Thats how i bought the bike

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                                      • S SpookDog

                                        I’ll look for a 4bl (I’ve never heard of a 4BL, you sure it’s not 4DL?) wiring diagram…

                                        It is bl just checked

                                        Mr ShadiM Offline
                                        Mr ShadiM Offline
                                        Mr Shadi
                                        wrote on last edited by
                                        #57

                                        @SpookDog sorry for not being active i had stuff to do. yeah its a 4bl not a dl, if u google 4bl this bike will come up and its exactly my bike ceaed3d7-2991-45db-8806-ec0c2fdac194-image.png and the reed switch i already drew it was green/red and a blue one

                                        Mr ShadiM 1 Reply Last reply
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                                        • markus.wM markus.w

                                          @Mr-Shadi you have the 4BL model, that's the later one with the reed switch but I guess you must have the restricted 3RM-10 CDI?

                                          Mr ShadiM Offline
                                          Mr ShadiM Offline
                                          Mr Shadi
                                          wrote on last edited by
                                          #58

                                          @markus-w it has a restricted cdi but its weird that if i move the reed switch at all it dosent rev over 6k. and i was thinking if i cut the wires and leave the reed switch in its place without the wires, maybe it will work.

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