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DT125R FORUM

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4dlhistorytuningdtr
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  • DartyD Darty

    @Calum Spend my loose change on Brochures to often,

    Aprilia did run the RS125GPs or RS125R. late 1980's and 90s. A works engine and chassis from which the RS125's were developed. Not much info on them.

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #61

    @Darty Oh I wasn't implying the rotax 122 was left stock. No doubt they had a revised version. That said today they use it in the 125 series amongst hondas rs125. Don't kmow if Yammy is still doing tzs

    Always Originate, Never Pirate!

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    0
    • DartyD Offline
      DartyD Offline
      Darty
      wrote on last edited by Darty
      #62

      @Calum No production of the TZs since 05' I think. It's a mad one, I've been looking at imported Japanese spec RS125 engines to drop into a production frame, What a project to build!

      Keep it real

      CalumC 1 Reply Last reply
      1
      • DartyD Darty

        @Calum No production of the TZs since 05' I think. It's a mad one, I've been looking at imported Japanese spec RS125 engines to drop into a production frame, What a project to build!

        CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #63

        @Darty I am not familiar with the NS125. What is it?

        Always Originate, Never Pirate!

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        0
        • DartyD Offline
          DartyD Offline
          Darty
          wrote on last edited by Mightyman
          #64

          @Calum Yeah WTF.. Lost my way. NS125 is this 80s gem.

          Basically don't listen to me, I meant the Honda RS' 125.

          Keep it real

          1 Reply Last reply
          2
          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #65

            Mmmm that ns is nice. Presumably then the ns125r became nsr125 which I have heard of.

            Yeah Hondas RS125 us savage.

            Never sren one irl though

            Always Originate, Never Pirate!

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            0
            • DartyD Offline
              DartyD Offline
              Darty
              wrote on last edited by Mightyman
              #66

              Yamaha DT200R 3ET. 1989. - Still a pogo stick. 28hp?

              Lire Français?

              Up to 2001. 3RMs

              Keep it real

              1 Reply Last reply
              0
              • CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #67

                I am certain a revision of the 3et made decent power. TOWIY would know more aboht that than me tbough.

                Always Originate, Never Pirate!

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                • DartyD Offline
                  DartyD Offline
                  Darty
                  wrote on last edited by Mightyman
                  #68

                  Yamaha TZM150.

                  Nicasil bore, 4HF-00 or 4AP-00 - 147cc

                  Looks very close to matching DT/TZR crankcases, but not quite.

                  TZM has the same stroke/ crankshaft as the 125s, really strange engine by Yamaha for the East Asian market. Rated at 34hp, apparently. But more like 30.

                  hmmm...Looks like a crap TZR. Or just like a TZR50.

                  And then a TZM 50, which I just found today, Thought man, that's pretty cool.

                  But, street legal road bike for whom? An 8year old? Lke TDR80's they are hilarious, proper bits of kit, just shrunk in the washing machine.

                  Keep it real

                  CalumC 1 Reply Last reply
                  1
                  • DartyD Darty

                    Yamaha TZM150.

                    Nicasil bore, 4HF-00 or 4AP-00 - 147cc

                    Looks very close to matching DT/TZR crankcases, but not quite.

                    TZM has the same stroke/ crankshaft as the 125s, really strange engine by Yamaha for the East Asian market. Rated at 34hp, apparently. But more like 30.

                    hmmm...Looks like a crap TZR. Or just like a TZR50.

                    And then a TZM 50, which I just found today, Thought man, that's pretty cool.

                    But, street legal road bike for whom? An 8year old? Lke TDR80's they are hilarious, proper bits of kit, just shrunk in the washing machine.

                    CalumC Offline
                    CalumC Offline
                    Calum
                    wrote on last edited by
                    #69

                    @Darty That TZM 50 is lush

                    Always Originate, Never Pirate!

                    DartyD 1 Reply Last reply
                    0
                    • CalumC Calum

                      @Darty That TZM 50 is lush

                      DartyD Offline
                      DartyD Offline
                      Darty
                      wrote on last edited by
                      #70

                      @Calum I want one for round town

                      Keep it real

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                      0
                      • DartyD Offline
                        DartyD Offline
                        Darty
                        wrote on last edited by Mightyman
                        #71

                        1988' Japanese market promotional material. Japanese aesthetic has a way of producing great graphic design. I'd like to say this is a fairly rare find even coming from Japan.

                        That bash plate though!? I want.

                        88-92' or so, the DT125R is advertised with a DT200R headlight and Alloy wheels for the JDM market.

                        These have to be the best illustrations I've seen out of the promo so far.

                        The DT200R always had a Yamaha Mikuni TM28ss, was always in the pipeline for the 125R.


                        I can believe that the intended output for a DT125R is 22ps, which is about 21hp.

                        Keep it real

                        CalumC 1 Reply Last reply
                        0
                        • DartyD Darty

                          1988' Japanese market promotional material. Japanese aesthetic has a way of producing great graphic design. I'd like to say this is a fairly rare find even coming from Japan.

                          That bash plate though!? I want.

                          88-92' or so, the DT125R is advertised with a DT200R headlight and Alloy wheels for the JDM market.

                          These have to be the best illustrations I've seen out of the promo so far.

                          The DT200R always had a Yamaha Mikuni TM28ss, was always in the pipeline for the 125R.


                          I can believe that the intended output for a DT125R is 22ps, which is about 21hp.

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #72

                          @Darty Wow, you certainly don't see many of those multicolour front mudguards!!

                          Always Originate, Never Pirate!

                          DartyD 1 Reply Last reply
                          0
                          • CalumC Calum

                            @Darty Wow, you certainly don't see many of those multicolour front mudguards!!

                            DartyD Offline
                            DartyD Offline
                            Darty
                            wrote on last edited by
                            #73

                            Check this all, 2RH Turbo.

                            https://www.youtube.com/watch?v=Oxj_OAb5bqk&list=LL5qGGE0mJaCm9BMMu7reYUQ&index=1

                            lol.

                            @Calum I found a couple of those bolt on mudskirts in Japan, just need a standard DTR to bolt it too 😆

                            Keep it real

                            NINJAN 1 Reply Last reply
                            2
                            • DartyD Darty

                              Check this all, 2RH Turbo.

                              https://www.youtube.com/watch?v=Oxj_OAb5bqk&list=LL5qGGE0mJaCm9BMMu7reYUQ&index=1

                              lol.

                              @Calum I found a couple of those bolt on mudskirts in Japan, just need a standard DTR to bolt it too 😆

                              NINJAN Offline
                              NINJAN Offline
                              NINJA
                              wrote on last edited by
                              #74

                              @Darty Man where do you find all this stuff? You must spend hours searching for it???

                              Good job though. 👍

                              SEDUCED BY THE DARK SIDE!!!

                              DartyD 1 Reply Last reply
                              0
                              • NINJAN NINJA

                                @Darty Man where do you find all this stuff? You must spend hours searching for it???

                                Good job though. 👍

                                DartyD Offline
                                DartyD Offline
                                Darty
                                wrote on last edited by Darty
                                #75

                                @CYBER-NINJA lol Not much, find this shit by accident mostly.

                                Keep it real

                                1 Reply Last reply
                                1
                                • DartyD Offline
                                  DartyD Offline
                                  Darty
                                  wrote on last edited by Mightyman
                                  #76

                                  Bought a cool advertisement from 89'

                                  Keep it real

                                  NINJAN 1 Reply Last reply
                                  0
                                  • DartyD Darty

                                    Bought a cool advertisement from 89'

                                    NINJAN Offline
                                    NINJAN Offline
                                    NINJA
                                    wrote on last edited by
                                    #77

                                    @Darty Man even nearly 30 years old, those bikes look awesome when new. 🙂

                                    SEDUCED BY THE DARK SIDE!!!

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                                    0
                                    • DartyD Offline
                                      DartyD Offline
                                      Darty
                                      wrote on last edited by Darty
                                      #78

                                      KTM in from the mid 80's were pretty werid and poor quality. Some of the best looking MX bikes of all time I think. And in 1985, KTM's were coming out with (White Power) WP nowadays,.. USD forks and front AND rear discs.

                                      For the late 1980s KTM's were pretty tech, but not very good by most accounts.

                                      Just a cool and very forward thinking piece of engineering from 1989, I thought I would share MXA's Write up, the only Magazine to get to test it, for the KTM 125MX AMP Prototype.

                                      http://amp-research.com/wp-content/files/MXA_AMP_KTM_May2013.pdf

                                      A really interesting time in Motocross development and the beginning of real refinement of the 2stroke for off-road racing.

                                      Keep it real

                                      1 Reply Last reply
                                      1
                                      • DartyD Offline
                                        DartyD Offline
                                        Darty
                                        wrote on last edited by Darty
                                        #79

                                        This a crackin build btw, check out this Rotax (123), that's right...
                                        https://www.youtube.com/watch?v=BU5bFu5eo0g

                                        Keep it real

                                        CalumC NINJAN 2 Replies Last reply
                                        1
                                        • DartyD Darty

                                          This a crackin build btw, check out this Rotax (123), that's right...
                                          https://www.youtube.com/watch?v=BU5bFu5eo0g

                                          CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #80

                                          @Darty Yes darty! That video is quality. The rotax 123 is inferior to the 122 engine.

                                          Great video

                                          Always Originate, Never Pirate!

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