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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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  • S SpookDog
    22 Apr 2023, 11:59

    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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    SpookDog
    wrote on 22 Apr 2023, 12:22 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! 🙂 …

    M 1 Reply Last reply 22 Apr 2023, 14:53
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    • S SpookDog
      22 Apr 2023, 12:22

      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! 🙂 …

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      Mr Shadi
      wrote on 22 Apr 2023, 14:53 last edited by
      #46

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

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      • M Mr Shadi
        20 Apr 2023, 16:24

        @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?

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        markus.w
        wrote on 23 Apr 2023, 14:54 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.

        M 2 Replies Last reply 24 Apr 2023, 08:33
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        • M markus.w
          23 Apr 2023, 14:54

          @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.

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          Mr Shadi
          wrote on 24 Apr 2023, 08:33 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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          • M markus.w
            23 Apr 2023, 14:54

            @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.

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            Mr Shadi
            wrote on 24 Apr 2023, 08:35 last edited by
            #49

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

            S 1 Reply Last reply 24 Apr 2023, 10:15
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            • M Mr Shadi
              24 Apr 2023, 08:35

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

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              SpookDog
              wrote on 24 Apr 2023, 10:15 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…

              M 1 Reply Last reply 24 Apr 2023, 10:56
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              • S SpookDog
                24 Apr 2023, 10:15

                @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…

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                Mr Shadi
                wrote on 24 Apr 2023, 10:56 last edited by
                #51

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

                M 1 Reply Last reply 24 Apr 2023, 11:01
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                • M Mr Shadi
                  24 Apr 2023, 10:56

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

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                  Mr Shadi
                  wrote on 24 Apr 2023, 11:01 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
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                    SpookDog
                    wrote on 24 Apr 2023, 12:58 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 M 2 Replies Last reply 24 Apr 2023, 13:11
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                    • S SpookDog
                      24 Apr 2023, 12:58

                      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

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                      SpookDog
                      wrote on 24 Apr 2023, 13:11 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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                      • M Mr Shadi
                        21 Apr 2023, 11:44

                        @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

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                        markus.w
                        wrote on 25 Apr 2023, 19:13 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?

                        M 1 Reply Last reply 28 Apr 2023, 22:00
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                        • Hybrid_Theory01H Offline
                          Hybrid_Theory01H Offline
                          Hybrid_Theory01
                          wrote on 26 Apr 2023, 13:05 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
                            24 Apr 2023, 12:58

                            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

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                            Mr Shadi
                            wrote on 28 Apr 2023, 21:58 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

                            M 1 Reply Last reply 28 Apr 2023, 22:03
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                            • M markus.w
                              25 Apr 2023, 19:13

                              @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?

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                              Mr Shadi
                              wrote on 28 Apr 2023, 22:00 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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                              • M Mr Shadi
                                28 Apr 2023, 21:58

                                @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

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                                Mr Shadi
                                wrote on 28 Apr 2023, 22:03 last edited by
                                #59

                                @Mr-Shadi i searched for wiring diagrams and i found one very pixelated one that showed the reed switch and its just 2 wires that go in to the cdi with nothing in between and there were 18 wires.

                                S 1 Reply Last reply 1 May 2023, 18:42
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                                • M Mr Shadi
                                  28 Apr 2023, 22:03

                                  @Mr-Shadi i searched for wiring diagrams and i found one very pixelated one that showed the reed switch and its just 2 wires that go in to the cdi with nothing in between and there were 18 wires.

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                                  SpookDog
                                  wrote on 1 May 2023, 18:42 last edited by
                                  #60

                                  @Mr-Shadi

                                  Any progress?…

                                  It is weird that it activates if you move it away from its spot. Are there any other wires going into your speedometer apart from the read switch ones you’ve mentioned, and the two for the bulb? (blue & black on mine) I’m wondering if the ‘activator’ in the speedo is electrical or magnetic/mechanical in some way…

                                  M 1 Reply Last reply 17 Aug 2023, 07:55
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                                  • S SpookDog
                                    1 May 2023, 18:42

                                    @Mr-Shadi

                                    Any progress?…

                                    It is weird that it activates if you move it away from its spot. Are there any other wires going into your speedometer apart from the read switch ones you’ve mentioned, and the two for the bulb? (blue & black on mine) I’m wondering if the ‘activator’ in the speedo is electrical or magnetic/mechanical in some way…

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                                    Mr Shadi
                                    wrote on 17 Aug 2023, 07:55 last edited by
                                    #61

                                    @SpookDog I GOT IT! I derestricted it. It took me a long time and a lot of anger but i DID IT! I did it by cutting the reed switch wires and putting the reed switch in its place with exposed open wires. Then i turned the bike on and kickstarted it, after that i revved till it hit the rev limiter and connected the wires till the rev limiter passed 6.5K without staying stuck and taped up the wires so they don't touch (Not the wires that are on the reed switch. The ones that come to it) and put them away. now the bike accelerates beyond 80km/h 50mp/h.

                                    S M 2 Replies Last reply 17 Aug 2023, 10:30
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                                    • M Mr Shadi
                                      17 Aug 2023, 07:55

                                      @SpookDog I GOT IT! I derestricted it. It took me a long time and a lot of anger but i DID IT! I did it by cutting the reed switch wires and putting the reed switch in its place with exposed open wires. Then i turned the bike on and kickstarted it, after that i revved till it hit the rev limiter and connected the wires till the rev limiter passed 6.5K without staying stuck and taped up the wires so they don't touch (Not the wires that are on the reed switch. The ones that come to it) and put them away. now the bike accelerates beyond 80km/h 50mp/h.

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                                      SpookDog
                                      wrote on 17 Aug 2023, 10:30 last edited by
                                      #62

                                      @Mr-Shadi

                                      Sweet! I’m happy for you bud 🙂 …

                                      S 1 Reply Last reply 17 Aug 2023, 12:07
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                                      • S SpookDog
                                        17 Aug 2023, 10:30

                                        @Mr-Shadi

                                        Sweet! I’m happy for you bud 🙂 …

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                                        SpookDog
                                        wrote on 17 Aug 2023, 12:07 last edited by SpookDog
                                        #63

                                        @Mr-Shadi

                                        So disconnecting the wires while the revs were above the limiter somehow reset the CDI?…

                                        1 Reply Last reply
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                                        • M Mr Shadi
                                          17 Aug 2023, 07:55

                                          @SpookDog I GOT IT! I derestricted it. It took me a long time and a lot of anger but i DID IT! I did it by cutting the reed switch wires and putting the reed switch in its place with exposed open wires. Then i turned the bike on and kickstarted it, after that i revved till it hit the rev limiter and connected the wires till the rev limiter passed 6.5K without staying stuck and taped up the wires so they don't touch (Not the wires that are on the reed switch. The ones that come to it) and put them away. now the bike accelerates beyond 80km/h 50mp/h.

                                          M Offline
                                          M Offline
                                          markus.w
                                          wrote on 18 Aug 2023, 19:51 last edited by
                                          #64

                                          @Mr-Shadi bloody hell mate, if you scroll down through this thread you'll see that's exactly what I told you to do back in April. Glad you finally got it anyway. Happy days.

                                          S M 2 Replies Last reply 18 Aug 2023, 20:30
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