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DT125R FORUM

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  4. Opinions Honda NSR 125 1989

Opinions Honda NSR 125 1989

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  • S Offline
    S Offline
    scrimsmustang
    wrote on last edited by
    #45

    I picked this 2000 model Foxeye RR up the other week, never took it flat out but it seemed pretty quick and pulled well for a 125, I sold it 5 mins after getting it out of the van for 1500 quid as is but I liked it. If I was looking for a 125 road bike i would have one now worries, it started 1st push of the button everytime and was a quality engineered bike but its a Honda so you kind of expect it. The bike is now in Tony Armes Motorcycles in Hartlepool for sale if anyone is looking for one, that who I sold it to.

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    1
    • CalumC Calum

      @mitch_350z The 2007 models are widely different handling characteristics to the older ones. Revised frame, subframe, forks, wheels and ignition.

      They won't be 33bhp, but they'll be the closest thing you'll get to them out the factory.

      PJME have a tuned 140cc Aprilia RS 125 on the dyno on YouTube that made 25 bhp, the stock cylinder made closer to 26 with small power band.

      But that was at the wheel. Impressive figures for a 125 road going bike nevertheless.

      S Offline
      S Offline
      scrimsmustang
      wrote on last edited by
      #46

      @calum said in Opinions Honda NSR 125 1989:

      @mitch_350z The 2007 models are widely different handling characteristics to the older ones. Revised frame, subframe, forks, wheels and ignition.

      They won't be 33bhp, but they'll be the closest thing you'll get to them out the factory.

      PJME have a tuned 140cc Aprilia RS 125 on the dyno on YouTube that made 25 bhp, the stock cylinder made closer to 26 with small power band.

      But that was at the wheel. Impressive figures for a 125 road going bike nevertheless.

      Ive got a well i should say had a pristine 2001 KMX with a stock motor making 19 at the rear wheel on the dyno just with jetting Boyessens and a Giannelli and people say they are slow.

      CalumC 1 Reply Last reply
      0
      • S scrimsmustang

        @calum said in Opinions Honda NSR 125 1989:

        @mitch_350z The 2007 models are widely different handling characteristics to the older ones. Revised frame, subframe, forks, wheels and ignition.

        They won't be 33bhp, but they'll be the closest thing you'll get to them out the factory.

        PJME have a tuned 140cc Aprilia RS 125 on the dyno on YouTube that made 25 bhp, the stock cylinder made closer to 26 with small power band.

        But that was at the wheel. Impressive figures for a 125 road going bike nevertheless.

        Ive got a well i should say had a pristine 2001 KMX with a stock motor making 19 at the rear wheel on the dyno just with jetting Boyessens and a Giannelli and people say they are slow.

        CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #47

        @scrimsmustang A pipe can make a big difference, especially if the stock system is restricted. Good figures though. I had a mate who had a 1999 KMX and he couldn't keep up with my bog standard DTRE (green and black wire earthed), and I wouldn't call the RE a quick bike.

        Always Originate, Never Pirate!

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        1
        • S Offline
          S Offline
          scrimsmustang
          wrote on last edited by
          #48

          They are all far from superbikes aint they, an re with wire earthed and the stock pipe binned is as quick as an old dtr i would say though from the few ive had over the years.

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          1
          • Irongamer727I Offline
            Irongamer727I Offline
            Irongamer727
            wrote on last edited by
            #49

            https://youtu.be/FL51HgO_rQw

            This is how a 2 stroke should sound!

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            0
            • Irongamer727I Offline
              Irongamer727I Offline
              Irongamer727
              wrote on last edited by
              #50

              It's mine btw 😉

              CalumC 1 Reply Last reply
              0
              • Irongamer727I Irongamer727

                It's mine btw 😉

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #51

                @irongamer727 Sounds lovely, idling a tad low mine you.

                What are the revs? 700

                Always Originate, Never Pirate!

                Irongamer727I 1 Reply Last reply
                0
                • CalumC Calum

                  @irongamer727 Sounds lovely, idling a tad low mine you.

                  What are the revs? 700

                  Irongamer727I Offline
                  Irongamer727I Offline
                  Irongamer727
                  wrote on last edited by
                  #52

                  @calum somewhere around there.

                  CalumC 1 Reply Last reply
                  0
                  • Irongamer727I Irongamer727

                    @calum somewhere around there.

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

                    @irongamer727 Yeah, you'll want to up that slightly.

                    Always Originate, Never Pirate!

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                    0
                    • D Offline
                      D Offline
                      DTR+NSR
                      wrote on last edited by
                      #54

                      Got the same exhaust on mine but with a tyga end can, what jetting are you running?

                      Irongamer727I 1 Reply Last reply
                      0
                      • D DTR+NSR

                        Got the same exhaust on mine but with a tyga end can, what jetting are you running?

                        Irongamer727I Offline
                        Irongamer727I Offline
                        Irongamer727
                        wrote on last edited by
                        #55

                        @dtr-nsr hehe not changed yet. I have 137 and 140 at home. Somewhere there I guess. That's what Romeu recommended. What are you running?

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                        0
                        • D Offline
                          D Offline
                          DTR+NSR
                          wrote on last edited by
                          #56

                          I've found the jet upgrade kit dellorto sells, works well with the later barrel like yours will have. 138 main, 65 power and 42 idle jet.

                          Irongamer727I 1 Reply Last reply
                          0
                          • D DTR+NSR

                            I've found the jet upgrade kit dellorto sells, works well with the later barrel like yours will have. 138 main, 65 power and 42 idle jet.

                            Irongamer727I Offline
                            Irongamer727I Offline
                            Irongamer727
                            wrote on last edited by
                            #57

                            @dtr-nsr Alright. She's running mint on idle, just fitted a 140 main. Let's see how she goes.

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                            0
                            • Irongamer727I Offline
                              Irongamer727I Offline
                              Irongamer727
                              wrote on last edited by
                              #58

                              Really, it's not even funny how easy it is to start.

                              1 Reply Last reply
                              0
                              • D Offline
                                D Offline
                                DTR+NSR
                                wrote on last edited by
                                #59

                                When I was running my nsr richer it was easy to start didn't even need choke. But since running it on leaner jetting it takes abit of tweaking but is loads livelier on the road.

                                Irongamer727I 1 Reply Last reply
                                0
                                • D DTR+NSR

                                  When I was running my nsr richer it was easy to start didn't even need choke. But since running it on leaner jetting it takes abit of tweaking but is loads livelier on the road.

                                  Irongamer727I Offline
                                  Irongamer727I Offline
                                  Irongamer727
                                  wrote on last edited by
                                  #60

                                  @dtr-nsr does your have a lot of low end power? Mine doesn't, but at 8-12k rpm it moves!
                                  Sixth gear is really not useful. Going 80km/h in sixth gear and twist the throttle nothing happens. Sounds familiar?

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                                  0
                                  • D Offline
                                    D Offline
                                    DTR+NSR
                                    wrote on last edited by
                                    #61

                                    I wouldn't say alot, but it noticeably improved with leaner jetting. Like you say power really comes in about 8krpm. Mine easily pulls to 80mph, you have to take it to the redline in 5th before changing into 6th and be well tucked in for it to pull in 6th I've found.

                                    Irongamer727I 1 Reply Last reply
                                    0
                                    • D DTR+NSR

                                      I wouldn't say alot, but it noticeably improved with leaner jetting. Like you say power really comes in about 8krpm. Mine easily pulls to 80mph, you have to take it to the redline in 5th before changing into 6th and be well tucked in for it to pull in 6th I've found.

                                      Irongamer727I Offline
                                      Irongamer727I Offline
                                      Irongamer727
                                      wrote on last edited by
                                      #62

                                      @dtr-nsr happy to hear. I didn't redline in 5th at around 120 km/h and when I changed gear I lost everything 😛

                                      1 Reply Last reply
                                      0
                                      • CalumC Offline
                                        CalumC Offline
                                        Calum
                                        wrote on last edited by
                                        #63

                                        What's the powervalve setting on these?

                                        Always Originate, Never Pirate!

                                        D 1 Reply Last reply
                                        0
                                        • CalumC Calum

                                          What's the powervalve setting on these?

                                          D Offline
                                          D Offline
                                          DTR+NSR
                                          wrote on last edited by
                                          #64

                                          @calum said in Opinions Honda NSR 125 1989:

                                          What's the powervalve setting on these?

                                          There open at idle up to 2000rpm, then closes and starts re-opening at about 7500rpm. There's a hi and low mark on the power valve pulley you line up, but I've found like with dt your best checking up the exhaust port, to check there fully open. Some cdi and power valve controllers are restricted though.

                                          Irongamer727I 1 Reply Last reply
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