Skip to content
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (Slate)
  • No Skin
Collapse
Brand Logo

DT125R FORUM

  1. Home
  2. Tuning
  3. Derestricting
  4. Derestrict yamaha dt 125 r 1997

Derestrict yamaha dt 125 r 1997

Scheduled Pinned Locked Moved Derestricting
66 Posts 5 Posters 7.5k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • CalumC Calum

    @SpookDog 401? That's Unauthorized

    Right, yeah I don't know about that one. I only really researched the one for my bike.

    Best thing to do is get a Zeeltronic ignition system for it and you're laughing.

    Mr ShadiM Offline
    Mr ShadiM Offline
    Mr Shadi
    wrote on last edited by
    #21

    @Calum i just bought the bike so i have no money to buy a 300 euro cdi. Trying to do it for free

    1 Reply Last reply
    0
    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #22

      @Mr-Shadi Sure, but some models of DTRs were heavily restricted via the CDI, so you're literally gimped until you replace it with either a less restrictive CDI or an aftermarket one.

      Always Originate, Never Pirate!

      Mr ShadiM 1 Reply Last reply
      0
      • CalumC Calum

        @Mr-Shadi Sure, but some models of DTRs were heavily restricted via the CDI, so you're literally gimped until you replace it with either a less restrictive CDI or an aftermarket one.

        Mr ShadiM Offline
        Mr ShadiM Offline
        Mr Shadi
        wrote on last edited by
        #23

        @Calum ok thank you for the help. will save some money to buy one then

        S 1 Reply Last reply
        0
        • Mr ShadiM Mr Shadi

          @Calum ok thank you for the help. will save some money to buy one then

          S Offline
          S Offline
          SpookDog
          wrote on last edited by SpookDog
          #24

          @Mr-Shadi

          Seen a few 3nc’s on eBay lately for reasonable prices. I got one for about £30 a while back…

          Still not convinced you need one yet. Try and find a copy of scrims write up. I found one the other day, I’ll try and get an address…

          Mr ShadiM 1 Reply Last reply
          0
          • S SpookDog

            @Mr-Shadi

            Seen a few 3nc’s on eBay lately for reasonable prices. I got one for about £30 a while back…

            Still not convinced you need one yet. Try and find a copy of scrims write up. I found one the other day, I’ll try and get an address…

            Mr ShadiM Offline
            Mr ShadiM Offline
            Mr Shadi
            wrote on last edited by
            #25

            @SpookDog i searched a bit and found my bike is actually yamaha dt 125 rn 1997. The rn model is restricted to 80 km/h and there is almost no info about that bike.

            S 1 Reply Last reply
            1
            • Mr ShadiM Mr Shadi

              @SpookDog i searched a bit and found my bike is actually yamaha dt 125 rn 1997. The rn model is restricted to 80 km/h and there is almost no info about that bike.

              S Offline
              S Offline
              SpookDog
              wrote on last edited by
              #26

              @Mr-Shadi

              That’s not even 60mph! Damn! I did think that you might have one of the’stranger’ ones. I still think that scrims deristricting guide is your best bet…

              Mr ShadiM 1 Reply Last reply
              0
              • CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #27

                I'd just get a Zeeltronic and be done with it.

                Always Originate, Never Pirate!

                1 Reply Last reply
                0
                • S SpookDog

                  @Mr-Shadi

                  That’s not even 60mph! Damn! I did think that you might have one of the’stranger’ ones. I still think that scrims deristricting guide is your best bet…

                  Mr ShadiM Offline
                  Mr ShadiM Offline
                  Mr Shadi
                  wrote on last edited by
                  #28

                  @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?

                  Mr ShadiM S markus.wM 3 Replies Last reply
                  0
                  • 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?

                    Mr ShadiM Offline
                    Mr ShadiM Offline
                    Mr Shadi
                    wrote on last edited by
                    #29

                    @Mr-Shadi 834c15f2-9d8e-471a-8673-8bdcaed0d45d-image.png

                    1 Reply Last reply
                    0
                    • 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?

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

                      @Mr-Shadi

                      I’m going to say yes. I’ve never seen one myself but it’s matching every description I’ve heard 🙂
                      You just have to move it away from the back of the rev counter/speedo clock and isolate it from them…

                      Do you have a rev counter and a speedo? Or just the speedo? I always thought that the reed-switch/bulb was behind the rev counter, but I could be wrong….

                      Mr ShadiM 1 Reply Last reply
                      0
                      • S SpookDog

                        @Mr-Shadi

                        I’m going to say yes. I’ve never seen one myself but it’s matching every description I’ve heard 🙂
                        You just have to move it away from the back of the rev counter/speedo clock and isolate it from them…

                        Do you have a rev counter and a speedo? Or just the speedo? I always thought that the reed-switch/bulb was behind the rev counter, but I could be wrong….

                        Mr ShadiM Offline
                        Mr ShadiM Offline
                        Mr Shadi
                        wrote on last edited by
                        #31

                        @SpookDog i have both. i isolated it with electric tape but it still dosent let me go over 80km/h and now the rev limiter can be heard. when i put in 5 gear it wount rev over 6k and same 6 th gear. and sometimes it dosent let me rev over 6k in all the gears but sometimes it does. i dont know what to do.

                        Mr ShadiM 1 Reply Last reply
                        0
                        • Mr ShadiM Mr Shadi

                          @SpookDog i have both. i isolated it with electric tape but it still dosent let me go over 80km/h and now the rev limiter can be heard. when i put in 5 gear it wount rev over 6k and same 6 th gear. and sometimes it dosent let me rev over 6k in all the gears but sometimes it does. i dont know what to do.

                          Mr ShadiM Offline
                          Mr ShadiM Offline
                          Mr Shadi
                          wrote on last edited by
                          #32

                          @Mr-Shadi i read the scrim derestriction guide but i am ether blind or there is no explanation how to move forward.

                          S 1 Reply Last reply
                          0
                          • Mr ShadiM Mr Shadi

                            @Mr-Shadi i read the scrim derestriction guide but i am ether blind or there is no explanation how to move forward.

                            S Offline
                            S Offline
                            SpookDog
                            wrote on last edited by SpookDog
                            #33

                            @Mr-Shadi

                            Have you moved the bulb as far away as you could from where it was? I thought it was behind the rev counter?
                            What country are you in? Is the bike native to your country? I’ve never heard of a dt125rn!

                            Try putting it back and seeing if the bike at least ‘settles down’!…

                            At least something is happening, even if it’s not what you want! It can (sometimes!) help to diagnose the problems 🙂 …

                            Mr ShadiM 1 Reply Last reply
                            0
                            • S SpookDog

                              @Mr-Shadi

                              Have you moved the bulb as far away as you could from where it was? I thought it was behind the rev counter?
                              What country are you in? Is the bike native to your country? I’ve never heard of a dt125rn!

                              Try putting it back and seeing if the bike at least ‘settles down’!…

                              At least something is happening, even if it’s not what you want! It can (sometimes!) help to diagnose the problems 🙂 …

                              Mr ShadiM Offline
                              Mr ShadiM Offline
                              Mr Shadi
                              wrote on last edited by Mr Shadi
                              #34

                              @SpookDog i put it away as far as i can but the wire holding rubber is in the way and its near metal if that does anything. the bike is from germany and its in estonia where i am from. i found out that the rn exists trough www.motomike.eu it has parts for that model. and im gonna mess with it again tomorrow cause its 22.29 for me right now and i will go to sleep. Thank you for the help 🙂

                              Mr ShadiM 1 Reply Last reply
                              0
                              • Mr ShadiM Mr Shadi

                                @SpookDog i put it away as far as i can but the wire holding rubber is in the way and its near metal if that does anything. the bike is from germany and its in estonia where i am from. i found out that the rn exists trough www.motomike.eu it has parts for that model. and im gonna mess with it again tomorrow cause its 22.29 for me right now and i will go to sleep. Thank you for the help 🙂

                                Mr ShadiM Offline
                                Mr ShadiM Offline
                                Mr Shadi
                                wrote on last edited by Mr Shadi
                                #35

                                ee14fef3-2273-4a5f-b007-947d8f37199c-image.png from motomike when you put in these settings 2a475a49-4a41-48ac-8859-689570733eaf-image.png

                                S 1 Reply Last reply
                                0
                                • Mr ShadiM Mr Shadi

                                  ee14fef3-2273-4a5f-b007-947d8f37199c-image.png from motomike when you put in these settings 2a475a49-4a41-48ac-8859-689570733eaf-image.png

                                  S Offline
                                  S Offline
                                  SpookDog
                                  wrote on last edited by SpookDog
                                  #36

                                  @Mr-Shadi

                                  Have you reconnected the CDI wiring up properly? The reed switch tells the CDI when the bikes doing 60mph then the CDI restricts the revs…

                                  Get it all running properly before even trying to de-restrict it…

                                  Also disconnecting the speedo cable should work, as the bike won’t ‘know’ it’s doing 60…

                                  Mr ShadiM 1 Reply Last reply
                                  0
                                  • S SpookDog

                                    @Mr-Shadi

                                    Have you reconnected the CDI wiring up properly? The reed switch tells the CDI when the bikes doing 60mph then the CDI restricts the revs…

                                    Get it all running properly before even trying to de-restrict it…

                                    Also disconnecting the speedo cable should work, as the bike won’t ‘know’ it’s doing 60…

                                    Mr ShadiM Offline
                                    Mr ShadiM Offline
                                    Mr Shadi
                                    wrote on last edited by
                                    #37

                                    @SpookDog i have looked over the wiring and its good and the cdi wiring is good, but the reed switch wires were broken at one point and i melted the wires together with a soldering iron.
                                    But im doing a full rebuild in a couple of months then ill know if something is broken and i think i will document it here.

                                    Mr ShadiM 1 Reply Last reply
                                    0
                                    • Mr ShadiM Mr Shadi

                                      @SpookDog i have looked over the wiring and its good and the cdi wiring is good, but the reed switch wires were broken at one point and i melted the wires together with a soldering iron.
                                      But im doing a full rebuild in a couple of months then ill know if something is broken and i think i will document it here.

                                      Mr ShadiM Offline
                                      Mr ShadiM Offline
                                      Mr Shadi
                                      wrote on last edited by
                                      #38

                                      @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 markus.wM 2 Replies Last reply
                                      0
                                      • 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
                                        S Offline
                                        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 🙂 …

                                        S 1 Reply Last reply
                                        0
                                        • 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
                                          0
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups