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DT125R FORUM

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  4. Dt 125r dyno

Dt 125r dyno

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  • J Offline
    J Offline
    jonne123
    wrote on last edited by
    #36

    How many hp tzr?

    1 Reply Last reply
    0
    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #37

      I don't know, why don't you Google it.

      The TZR wasn't anything special, so I'd imagine about the same.

      If you absolutely must have the most demanding HP bikes then go for the Italian bikes. Aprilia/Cagiva or look for the absurdly rare and Overpriced Japanese bikes.

      The TZR RR SP or the Honda NSR RR.

      Always Originate, Never Pirate!

      1 Reply Last reply
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      • J Offline
        J Offline
        jonne123
        wrote on last edited by
        #38

        Well it reads that tzr 125 has 26hp

        CalumC 1 Reply Last reply
        0
        • J jonne123

          Well it reads that tzr 125 has 26hp

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #39

          @jonne123 Highly doubt it.

          The RS is about that, and the 2RK TZRs wouldn't hold a candle to them. The SPs might make that sort of power, but they only made handful of those.

          Always Originate, Never Pirate!

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          0
          • CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #40

            alt text

            That's the SP and there are none on eBay.

            Where as you are bound to find a handful of RS's and a few Cagivas if you search.

            Always Originate, Never Pirate!

            1 Reply Last reply
            0
            • J Offline
              J Offline
              jonne123
              wrote on last edited by
              #41

              I dont understand why yamaha didnt make dt more powerfil because they had competiton.

              CalumC 1 Reply Last reply
              0
              • J jonne123

                I dont understand why yamaha didnt make dt more powerfil because they had competiton.

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #42

                @jonne123 You literally don't understand do you?

                Why does power = better?

                That's not what the DTR was about. It's got nothing to do with power. It's a road going bike for learner legal. The requirement for that was 11Kw. It makes 11Kw on the nose. As does the WRX and every other 125 available today.

                Power != Better!

                The DTR is not a competition bike, the YZ is. And the YZ 125 makes like 30+ hp. it's got nothing to do with power so why do you keep harping on about power.

                The competition for the Yamaha were bikes like

                Suzuki TS125
                alt text
                Kawasaki KMX 125
                alt text

                And it was competitively marketed and priced against those accordingly.

                Stop equating power to better.

                Always Originate, Never Pirate!

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                • J Offline
                  J Offline
                  jonne123
                  wrote on last edited by
                  #43

                  Ok could i win one of our village derbi 70cc that went past wr125x and that was humiliating

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                  • CalumC Offline
                    CalumC Offline
                    Calum
                    wrote on last edited by
                    #44

                    Not really, the 125 is a four stroke and the derbi is a two stroke.

                    In competition, the 125 two strokes went up against the 250 four strokes.

                    Always Originate, Never Pirate!

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                    • J Offline
                      J Offline
                      jonne123
                      wrote on last edited by
                      #45

                      One more question why did they restrict the newer dt is they didnt have too much power 11kw

                      A 1 Reply Last reply
                      0
                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #46

                        Learner legal. The law changed to 11kw for riders with no licence.

                        Always Originate, Never Pirate!

                        declanD 1 Reply Last reply
                        0
                        • CalumC Calum

                          Learner legal. The law changed to 11kw for riders with no licence.

                          declanD Offline
                          declanD Offline
                          declan
                          wrote on last edited by
                          #47

                          I saw a dt 125 lc make 17hp 13 is a little low also what cr was dynoed and even if the dt and wrx make the same power it’s not a comparison as the dt pisses all over 125 4 strokes

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                          • J jonne123

                            One more question why did they restrict the newer dt is they didnt have too much power 11kw

                            A Offline
                            A Offline
                            Arild
                            wrote on last edited by
                            #48

                            @jonne123 The dyno doesnt seem accurate if it made 14hp with the exhaust, better head, reeds dont really increase hp numbers more feel and throttle response. But id say 14hp from that seems off. But like calum has been saying, you wont make competition dirtbike style numbers. They go 5 hours and then you change the oil, air filter and the piston is like every 40 hours. Like calum said the dtr is the opposite, its not meant to win you some dirtbike race rather made to be a reliable commuter bike that has the possibilty of going offroading.

                            However, first learn the difference between torque and horsepower, you can have a bike with loads of torque but not that much horsepower, or the otherway around.
                            Secondly learn twostrokes in general, how they work, how you tune them etc, theres literally an endless amount of stuff you can do to your bike if you have the skill and knowledge to do it, but you barely knew what calum meant by "tuning".

                            Learn the basics first and stop fixating yourself on numbers and other bikes.
                            If high hp numbers is what u find important, then sell the dtr and get a yz or what calum mentioned above

                            1 Reply Last reply
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                            • J Offline
                              J Offline
                              jonne123
                              wrote on last edited by
                              #49

                              im thinking of buying zeeltronic and then for dyno adjustment. "rather slow bike with good tune than fast bike with bad tune"

                              A 1 Reply Last reply
                              0
                              • CalumC Calum

                                https://www.ultimatespecs.com/motorcycles-specs/yamaha/yamaha-dt-125-r-2002

                                Maximum power - Output - Horsepower 14.10 HP (10.3 kW) @ 7000 RPM

                                Stevie WonderS Offline
                                Stevie WonderS Offline
                                Stevie Wonder
                                wrote on last edited by
                                #50

                                @Calum said in Dt 125r dyno:

                                https://www.ultimatespecs.com/motorcycles-specs/yamaha/yamaha-dt-125-r-2002

                                Maximum power - Output - Horsepower 14.10 HP (10.3 kW) @ 7000 RPM

                                Sorry to intervene but a bone stock DTR can and will make 23hp?
                                (I have a dyno printout to prove it but once again I’m on my phone and can’t upload it)
                                However and this is a BIG however... I honestly believe that there where only ever 2 models of DTR capable of producing that figure from factory and without modification.

                                The legendary fast boi UK 89 model and the French 97-98 4BL that came with the rare 3nc-20 CDI. (however even this model came with a 3BN head so could be argued that its “restricted” or generally not reaching its full potential.)

                                Now I could be wrong, but every other model bike even regardless of area code that I’ve seen has had some kind of “restriction” or something that’s hinder its performance more then those other two bikes.

                                However, Callum’s right about quite a few things. Firstly, remind yourself what your machine was designed for, it’s a steep learning curve for some of us me. Your DTR, just like mine, was never designed to be sending triples whilst waving a Ronnie Mac flag mid air. It was however designed to be bullet proof, see 14k on a set of rings and be as happy taking you to the shops as it is with some hooligan on it popping wheelies and blasting through some woods. The moment you realise that is the moment you’ll gain a whole new level of appreciation for the very capable little deee teee arrrr.

                                Secondly another thing I had to learn is a two stroke is only ever as good as it’s last/current owner and with near enough all our bikes cracking on 20+ years old unless you’re lucky enough to own a very well preserved French bike or someone’s build you may as well just assume it has 15hp as you will never know what all of the bikes previous owners have done to it

                                1 Reply Last reply
                                1
                                • J jonne123

                                  im thinking of buying zeeltronic and then for dyno adjustment. "rather slow bike with good tune than fast bike with bad tune"

                                  A Offline
                                  A Offline
                                  Arild
                                  wrote on last edited by
                                  #51

                                  @jonne123
                                  Yeah theyre apparently supposed to be really good, but why not just aim to have a fast bike with a good tune, it doesnt have to be on or the other, all the fast bikes wouldnt be fast bikes without a good tune, dont really understand your quote

                                  Stevie WonderS 1 Reply Last reply
                                  0
                                  • A Arild

                                    @jonne123
                                    Yeah theyre apparently supposed to be really good, but why not just aim to have a fast bike with a good tune, it doesnt have to be on or the other, all the fast bikes wouldnt be fast bikes without a good tune, dont really understand your quote

                                    Stevie WonderS Offline
                                    Stevie WonderS Offline
                                    Stevie Wonder
                                    wrote on last edited by
                                    #52

                                    @Arild said in Dt 125r dyno:

                                    @jonne123
                                    Yeah theyre apparently supposed to be really good, but why not just aim to have a fast bike with a good tune, it doesnt have to be on or the other, all the fast bikes wouldnt be fast bikes without a good tune, dont really understand your quote

                                    Or even better firstly rule out what it is that you wish to achieve when you say “fast”

                                    Are we talking full on “wheelies every gear m8” or BARacing angry bicycle

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                                    • CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #53

                                      So the argument I have about that is my DTR probably doesn't make that sort of power.

                                      Doesn't matter that it's not the "bad boy" French model since they aren't as tuned as mine. Fact of the matter is, they simply don't nake that much power without significant investment.

                                      Always Originate, Never Pirate!

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                                      0
                                      • NottsbikerN Offline
                                        NottsbikerN Offline
                                        Nottsbiker
                                        wrote on last edited by
                                        #54

                                        Had this recently with someone telling me my TDR would be dog slow with its DTR cylinder and that his 4FU with 32mm would be a rocket ship. Person seemed unable to comprehend that I didnt really care that much and that its essentially a softly tuned fun / commuter bike that is designed to be reliable and run on basic maintenance only.

                                        P codes, SP cylinders etc are all good if you have them, can afford them and are that bothered about getting 1 or 2 bhp out of a softly tuned Yamaha engine.

                                        I've just sold 150bhp Ducati Multistrada so I'm not overly interested in 15 or 20 hp as long as the bike moves and is fun to ride 🙂

                                        1 Reply Last reply
                                        2
                                        • CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #55

                                          If I wanted to go silly fast I'd take my ZXR out for a spin 🤣

                                          Always Originate, Never Pirate!

                                          NottsbikerN 1 Reply Last reply
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