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DT125R FORUM

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  4. Dt 125r dyno

Dt 125r dyno

Scheduled Pinned Locked Moved Engine
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  • S SpookDog

    @jonne123

    No disrespect meant from the start! But I’m guessing that you’re about 17 and haven’t ridden a great deal of bikes?
    Every 125 Has been restricted to about 12bhp since the late 80’s AFAIK. Any bike that is significantly above that has been de-restricted and/or tuned.
    You can unrestricted early dtr’s by ‘pinning’ the power valve open. This will give you higher bhp but will basically make the throttle an on/off button with terrible response.
    Later bikes I don’t know as much. You can unrestrict them and the variable power valve will still give you better low rev torque/response (I’m guessing that is what you mean by throttle response?)

    Do some reading up on deristricting your year model bike, then do some riding. Stop worrying about numbers bud, enjoy a wicked little bike for what it is, before yearning for more...

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #60

    @SpookDog I believe you could also show your License to Yamaha at time of purchase and they'd fit the YPVS for you. Hence why some came with the valves.

    The latter models were restricted in other ways and probably came with the valves fitted for emmissions.

    Always Originate, Never Pirate!

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    • S Offline
      S Offline
      SpookDog
      wrote on last edited by SpookDog
      #61

      I did wonder where all the 3 wire servo’s came from. I heard that a 1000 exup had the same servo. Thought that was a 4stroke though.
      I love learning new shit!

      Did you mean the 5 wire were emission related? Dunno, I still think they are for improving bottom rev torque. Interesting though...

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      • S Offline
        S Offline
        SpookDog
        wrote on last edited by
        #62

        Off topic. I saw the most beautiful bike ever. It was a Ducati with a ‘space frame’ of steel with about a 750-1000 v twin engine. 80’s looking. I never got a look at the numbers, never had any decals. Cafe racer, clip on looking dream boat!
        I’d really love to find out what it was...

        1 Reply Last reply
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        • J Offline
          J Offline
          jonne123
          wrote on last edited by jonne123
          #63

          But doesnt better spark and better ypvs map help eith power a little?

          Bikes i tested

          Suzuki pv 77cc & 100cc

          Yamaha 125r

          70cc derbi

          yamaha wr 125x

          Honda monkey 125cc & 74cc

          Few Scooters

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

            alt text

            alt text

            alt text

            The consensus is a fully de-restricted - Pre 1999 DT125R (Light Generator design) , All the ECU's are unrestricted pre 1999/8 will make around at 18hp stock, only because they rev out to 10,500rpm or so.

            Keep it real

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            • J Offline
              J Offline
              jonne123
              wrote on last edited by jonne123
              #65

              https://tunisti.kuvat.fi/kuvat/Dyno graphs/Vauhtipaivat 2020 Dyno Results/R11.bmp

              1 Reply Last reply
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              • J Offline
                J Offline
                jonne123
                wrote on last edited by jonne123
                #66

                How tzr 125 makes 25hp?

                NottsbikerN 1 Reply Last reply
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                • J jonne123

                  How tzr 125 makes 25hp?

                  NottsbikerN Offline
                  NottsbikerN Offline
                  Nottsbiker
                  wrote on last edited by
                  #67

                  @jonne123 said in Dt 125r dyno:

                  How tzr 125 makes 25hp?

                  Different dyno's read differently and also manufacturers often claim at the crank not back wheel 😉

                  1 Reply Last reply
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                  • J jonne123

                    So im simple terms its easier to buy another bike.

                    clawsC Offline
                    clawsC Offline
                    claws
                    wrote on last edited by
                    #68

                    @jonne123 kyllä noista detseistä tulee se 25 hepoa täystehosena koneelta. tuo 13 hepoa on kuristuksilla. itellä tuli ehkä joku 27-28 ku oli 170cc, giannelli ja 36 millinen keihini

                    2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                    1999 YZ250 with a 1999 DTR VIN

                    1 Reply Last reply
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                    • J Offline
                      J Offline
                      jonne123
                      wrote on last edited by
                      #69

                      täytyy käydä toisessa penkissä ja huomaa että ei ollu pakoaukon säädin oikein kun ei penkissä menny edes 10000rpm.

                      O clawsC 2 Replies Last reply
                      0
                      • J jonne123

                        täytyy käydä toisessa penkissä ja huomaa että ei ollu pakoaukon säädin oikein kun ei penkissä menny edes 10000rpm.

                        O Offline
                        O Offline
                        oldman
                        wrote on last edited by
                        #70

                        @jonne123 absolutely, couldn't agree more!

                        CalumC 1 Reply Last reply
                        2
                        • O oldman

                          @jonne123 absolutely, couldn't agree more!

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #71

                          @oldman Actung! Sprich Englisch!

                          Always Originate, Never Pirate!

                          1 Reply Last reply
                          0
                          • J Offline
                            J Offline
                            jonne123
                            wrote on last edited by
                            #72

                            just Finnish... very easy to understand

                            1 Reply Last reply
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                            • J jonne123

                              täytyy käydä toisessa penkissä ja huomaa että ei ollu pakoaukon säädin oikein kun ei penkissä menny edes 10000rpm.

                              clawsC Offline
                              clawsC Offline
                              claws
                              wrote on last edited by
                              #73

                              @jonne123 ootko johtokikan teheny?

                              2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                              1999 YZ250 with a 1999 DTR VIN

                              J 1 Reply Last reply
                              0
                              • clawsC claws

                                @jonne123 ootko johtokikan teheny?

                                J Offline
                                J Offline
                                jonne123
                                wrote on last edited by
                                #74

                                @claws said in Dt 125r dyno:

                                @jonne123 ootko johtokikan teheny?

                                Its a 1994 model

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                                • CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by
                                  #75

                                  🤣

                                  Genuinely, Brits are so lazy, the fact you guys can just switch between both of the languages is incredible. And to be fair, your English is better than people I know. English is a frustrating language too! So hats off to you 😛

                                  Always Originate, Never Pirate!

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                                  • O Offline
                                    O Offline
                                    oldman
                                    wrote on last edited by
                                    #76

                                    I can do French though!

                                    CalumC NottsbikerN 2 Replies Last reply
                                    2
                                    • O oldman

                                      I can do French though!

                                      CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #77

                                      @oldman Good news, when I want to surrender I'll give you a shout!

                                      Always Originate, Never Pirate!

                                      Stevie WonderS 1 Reply Last reply
                                      1
                                      • CalumC Calum

                                        @oldman Good news, when I want to surrender I'll give you a shout!

                                        Stevie WonderS Offline
                                        Stevie WonderS Offline
                                        Stevie Wonder
                                        wrote on last edited by
                                        #78

                                        @Calum said in Dt 125r dyno:

                                        @oldman Good news, when I want to surrender I'll give you a shout!

                                        You can’t shout at someone when they’ve already been invaded

                                        1 Reply Last reply
                                        0
                                        • J Offline
                                          J Offline
                                          jonne123
                                          wrote on last edited by
                                          #79

                                          Well many technical stuff is in english so its must to know terms and also i have learned english since i was 9. I also watch lot of English videos.

                                          1 Reply Last reply
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