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DT125R FORUM

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  4. Dtx Project Codename Moneypit

Dtx Project Codename Moneypit

Scheduled Pinned Locked Moved DTX
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  • CalumC Online
    CalumC Online
    Calum
    wrote on last edited by
    #4

    Twin Rads? Just an idea.

    Always Originate, Never Pirate!

    ZrakoZ 1 Reply Last reply
    1
    • ZrakoZ Zrako

      Haha as title says , complete rebuild time is here. Im stripped the bike down so far counting and thinking what where and how much etc. Researching new ideas. So far Im decided to powdercoat frame , get yz usd forks and swingarm , rebore barrel + new piston and con rod , inspect the crash of bottom end(hopely only bearings) , new clutch , new full exhaust, rework the connectors and wire harness...
      Will warmly welcome new ideas and comments , 0_1489167502219_20170309_181353.jpg

      NINJAN Offline
      NINJAN Offline
      NINJA
      wrote on last edited by
      #5

      @Zrako Sourcing some good quality used parts will save you some cash along this journey for-sure!!! ')

      SEDUCED BY THE DARK SIDE!!!

      ZrakoZ 1 Reply Last reply
      1
      • CalumC Calum

        Twin Rads? Just an idea.

        ZrakoZ Offline
        ZrakoZ Offline
        Zrako
        wrote on last edited by
        #6

        @Calum I was thinking about some honda alluminium ones , they are same price as the dt 200 , might need some custom brackets 🤔

        1979 Jawa Mustang 50
        2003 Gilera DNA 125 R.I.P
        2015 Keeway TX 125 SM
        2006 Yamaha DT 125 X

        1 Reply Last reply
        0
        • NINJAN NINJA

          @Zrako Sourcing some good quality used parts will save you some cash along this journey for-sure!!! ')

          ZrakoZ Offline
          ZrakoZ Offline
          Zrako
          wrote on last edited by
          #7

          @CYBER-NINJA eBay all the way mate , tried gumtree as well but in NI is not as much bike breakers as in mainland

          1979 Jawa Mustang 50
          2003 Gilera DNA 125 R.I.P
          2015 Keeway TX 125 SM
          2006 Yamaha DT 125 X

          1 Reply Last reply
          0
          • ZrakoZ Offline
            ZrakoZ Offline
            Zrako
            wrote on last edited by
            #8

            What do you guys think about quick action throttles? Found it on ebay randomly chasing parts.

            1979 Jawa Mustang 50
            2003 Gilera DNA 125 R.I.P
            2015 Keeway TX 125 SM
            2006 Yamaha DT 125 X

            declanD 1 Reply Last reply
            0
            • CalumC Online
              CalumC Online
              Calum
              wrote on last edited by
              #9

              I know nev fitted one to his dtr. But I know his would have been a nice one.

              It is not about us, it's about your project.

              Always Originate, Never Pirate!

              ZrakoZ 1 Reply Last reply
              0
              • DartyD Offline
                DartyD Offline
                Darty
                wrote on last edited by
                #10

                I run a YZ 250 throttle with a billet alloy throttle tube, so much nicer...

                Recomended.

                Keep it real

                tdr125gregT 1 Reply Last reply
                3
                • CalumC Calum

                  I know nev fitted one to his dtr. But I know his would have been a nice one.

                  It is not about us, it's about your project.

                  ZrakoZ Offline
                  ZrakoZ Offline
                  Zrako
                  wrote on last edited by
                  #11

                  @Calum I was mainly asking about it because I am never heard of it and if anyone fitted one on his dt , if its any good and what is the experience like😊

                  1979 Jawa Mustang 50
                  2003 Gilera DNA 125 R.I.P
                  2015 Keeway TX 125 SM
                  2006 Yamaha DT 125 X

                  CalumC 1 Reply Last reply
                  0
                  • ZrakoZ Zrako

                    @Calum I was mainly asking about it because I am never heard of it and if anyone fitted one on his dt , if its any good and what is the experience like😊

                    CalumC Online
                    CalumC Online
                    Calum
                    wrote on last edited by
                    #12

                    @Zrako Ever ridden a crosser?

                    Effectively you are only pulling the throttle a quarter turn before full chat.

                    So you lose control of the throttle slider, but you are quicker to go Wipe Open Throttle.

                    You would probably want spot on jetting, else risk bogging down.

                    Always Originate, Never Pirate!

                    ZrakoZ 1 Reply Last reply
                    0
                    • CalumC Calum

                      @Zrako Ever ridden a crosser?

                      Effectively you are only pulling the throttle a quarter turn before full chat.

                      So you lose control of the throttle slider, but you are quicker to go Wipe Open Throttle.

                      You would probably want spot on jetting, else risk bogging down.

                      ZrakoZ Offline
                      ZrakoZ Offline
                      Zrako
                      wrote on last edited by
                      #13

                      @Calum never rided motocross bike ,so with this Im loosing a lot I think , its not really for the cruising and for the traffic as lot of sensitivity will compress in the 1/4 turn ?

                      1979 Jawa Mustang 50
                      2003 Gilera DNA 125 R.I.P
                      2015 Keeway TX 125 SM
                      2006 Yamaha DT 125 X

                      CalumC 1 Reply Last reply
                      0
                      • ZrakoZ Zrako

                        @Calum never rided motocross bike ,so with this Im loosing a lot I think , its not really for the cruising and for the traffic as lot of sensitivity will compress in the 1/4 turn ?

                        CalumC Online
                        CalumC Online
                        Calum
                        wrote on last edited by
                        #14

                        @Zrako It's not really an issue, but the original throttle is there to ease the power on and make it easier to just poot around with traffic for the novice rider. It wouldn't take long before you forgot how it was originally and got used to the quick throttle.

                        Always Originate, Never Pirate!

                        1 Reply Last reply
                        2
                        • DartyD Darty

                          I run a YZ 250 throttle with a billet alloy throttle tube, so much nicer...

                          Recomended.

                          tdr125gregT Offline
                          tdr125gregT Offline
                          tdr125greg
                          wrote on last edited by
                          #15

                          @Darty would model year on the yz throttle matter?

                          TDR125 🔥
                          Put some respek on it! 😂

                          1 Reply Last reply
                          0
                          • ZrakoZ Offline
                            ZrakoZ Offline
                            Zrako
                            wrote on last edited by
                            #16

                            0_1490221123100_20170322_201604.jpg

                            The yz swingarm arrived today . Postman asked me why I am so happy lol.
                            Ehm. The fitment makes me a bit nervous there. Any ideas ?

                            1979 Jawa Mustang 50
                            2003 Gilera DNA 125 R.I.P
                            2015 Keeway TX 125 SM
                            2006 Yamaha DT 125 X

                            1 Reply Last reply
                            1
                            • G Offline
                              G Offline
                              gareth_iowc
                              wrote on last edited by
                              #17

                              Yz one is not wide enough. Tried this myself 2 weeks ago and gave up on that idea

                              DT125R 2000
                              DRZ400 2006
                              Golf Mk3 20v Turbo 1996

                              ZrakoZ 1 Reply Last reply
                              0
                              • G gareth_iowc

                                Yz one is not wide enough. Tried this myself 2 weeks ago and gave up on that idea

                                ZrakoZ Offline
                                ZrakoZ Offline
                                Zrako
                                wrote on last edited by Mightyman
                                #18

                                @chalkey46 Sir I need your help ☺
                                @gareth_iowc !

                                YZ Swingarm

                                This Sir did the job mate .

                                1979 Jawa Mustang 50
                                2003 Gilera DNA 125 R.I.P
                                2015 Keeway TX 125 SM
                                2006 Yamaha DT 125 X

                                1 Reply Last reply
                                0
                                • CalumC Online
                                  CalumC Online
                                  Calum
                                  wrote on last edited by
                                  #19

                                  Anything is possible. No it's not a direct fit, but if it were then every joey would have done it.

                                  The only reason I didn't do it, was because I spent many many nights lining up my supermoto wheels with my current setup, changing the arm, whilst trivial, would have undone all that work.

                                  Always Originate, Never Pirate!

                                  NINJAN 1 Reply Last reply
                                  2
                                  • ZrakoZ Offline
                                    ZrakoZ Offline
                                    Zrako
                                    wrote on last edited by
                                    #20

                                    At first Im spotted the 2 problems I need to deal with : 1st - the linkage fitment is different
                                    2nd - the brake bracket .
                                    Wondering if the yz bracket will fit my caliper and line up properly with the disc 🤔

                                    1979 Jawa Mustang 50
                                    2003 Gilera DNA 125 R.I.P
                                    2015 Keeway TX 125 SM
                                    2006 Yamaha DT 125 X

                                    1 Reply Last reply
                                    0
                                    • CalumC Calum

                                      Anything is possible. No it's not a direct fit, but if it were then every joey would have done it.

                                      The only reason I didn't do it, was because I spent many many nights lining up my supermoto wheels with my current setup, changing the arm, whilst trivial, would have undone all that work.

                                      NINJAN Offline
                                      NINJAN Offline
                                      NINJA
                                      wrote on last edited by
                                      #21

                                      @Calum Big respect to all Joey's!!! LOL 😉

                                      SEDUCED BY THE DARK SIDE!!!

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

                                        To do it properly you are going to need to realign the whole geometry of the bike.

                                        With the new swingarm you are going to need the YZ brake carrier. Which will need modifiying to either accept your brake, or use the YZ brakes.

                                        Either way the swingarm needs altering to fit between the frame and the engine.

                                        This will cause the sprocket to be out of alignment with the rear sprocket, which is going to to cause undue stress to the gearbox bearings. This will need correcting by either shimming or machining.

                                        You are then going to find the front and rear wheels are no longer in line. So this will need altering to ensure that the front and rear wheels are inline, and the front and rear sprockets are inline.

                                        If you don't then you will find the bike will have a tendency to crab or to cause excessive damage to the gearbox.

                                        This is why my front wheel is off centre from the forks. This was done to ensure the front and rear wheels line up perfectly, whilst maintaining the correct geometry for the front and rear sprockets.

                                        I'm all for the swingarm conversion, but it sounds like you haven't thought this through enough?

                                        If you're going to do, do it right. Is all I'm going to say.

                                        It's just a case of measuring once, twice three times to be sure. This is the reason why I didn't use the alloy swingarm, AFTER I had already done all of this measuring.

                                        I should have done it all at one time and saved myself the effort of measuring twice.

                                        If any of that is unclear I am happy to go into more detail.

                                        Always Originate, Never Pirate!

                                        ZrakoZ 1 Reply Last reply
                                        1
                                        • CalumC Calum

                                          To do it properly you are going to need to realign the whole geometry of the bike.

                                          With the new swingarm you are going to need the YZ brake carrier. Which will need modifiying to either accept your brake, or use the YZ brakes.

                                          Either way the swingarm needs altering to fit between the frame and the engine.

                                          This will cause the sprocket to be out of alignment with the rear sprocket, which is going to to cause undue stress to the gearbox bearings. This will need correcting by either shimming or machining.

                                          You are then going to find the front and rear wheels are no longer in line. So this will need altering to ensure that the front and rear wheels are inline, and the front and rear sprockets are inline.

                                          If you don't then you will find the bike will have a tendency to crab or to cause excessive damage to the gearbox.

                                          This is why my front wheel is off centre from the forks. This was done to ensure the front and rear wheels line up perfectly, whilst maintaining the correct geometry for the front and rear sprockets.

                                          I'm all for the swingarm conversion, but it sounds like you haven't thought this through enough?

                                          If you're going to do, do it right. Is all I'm going to say.

                                          It's just a case of measuring once, twice three times to be sure. This is the reason why I didn't use the alloy swingarm, AFTER I had already done all of this measuring.

                                          I should have done it all at one time and saved myself the effort of measuring twice.

                                          If any of that is unclear I am happy to go into more detail.

                                          ZrakoZ Offline
                                          ZrakoZ Offline
                                          Zrako
                                          wrote on last edited by
                                          #23

                                          @Calum yeah to be honest Im thought its lot easier than it really is and I havent the yz swingarm in the hand to get the measurements.
                                          Definitely I have only 2 ways of doing this: properly or stock swingarm.

                                          1979 Jawa Mustang 50
                                          2003 Gilera DNA 125 R.I.P
                                          2015 Keeway TX 125 SM
                                          2006 Yamaha DT 125 X

                                          1 Reply Last reply
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