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DT125R FORUM

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  4. Yamaha dt125re rebuild

Yamaha dt125re rebuild

Scheduled Pinned Locked Moved DTRE
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  • B Offline
    B Offline
    BraDT
    wrote on last edited by
    #60

    When I first started rebuilding it wasn’t the idea was just gunna be a weekend toy have a good blast around every now and again but things change so until I get my company car it will be used
    But with it nearly finished it’s not the best build and not the cleanest and already pricing everything up for a full nut and bolt rebuild and making everything original to keep its value but that’s a long way off

    Already keeping my eyes open for something else for a project something I don’t need to use as really enjoyed doing this.

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    • B Offline
      B Offline
      BraDT
      wrote on last edited by
      #61

      Has anyone got a guide on how to bleed my autolube ? Iv had all the oil out and haven’t a clue how to bleed the sysytem ?

      Any help muchly appreciated

      declanD 1 Reply Last reply
      0
      • B BraDT

        Has anyone got a guide on how to bleed my autolube ? Iv had all the oil out and haven’t a clue how to bleed the sysytem ?

        Any help muchly appreciated

        declanD Offline
        declanD Offline
        declan
        wrote on last edited by
        #62

        @bradt best way is to run premix in your bike while running with the autolube full bleed the lines there will be a rubber blanking cap on the pump pull that off While the bike is running on premix and when the air bubbles stop coming out plug it back up then watch the flow coming from the pump to engine best use clear lines so you can see the air bubbles then when there’s no bubbles your good to switch back to autolube fully

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        • B Offline
          B Offline
          BraDT
          wrote on last edited by Mightyman
          #63

          Cheers mate ordered some clear lines

          Bike all ready now, but have noticed a leak from the carb guessing bowl gasket needs replacing

          Auto lube needs bleeding also and she ready for her first start

          First time out the garage in a few months quick wipe down and a polish

          CalumC 1 Reply Last reply
          0
          • B BraDT

            Cheers mate ordered some clear lines

            Bike all ready now, but have noticed a leak from the carb guessing bowl gasket needs replacing

            Auto lube needs bleeding also and she ready for her first start

            First time out the garage in a few months quick wipe down and a polish

            CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #64

            @bradt Mean rear tyre. I hope you plan on taking this offroad!

            Always Originate, Never Pirate!

            declanD 1 Reply Last reply
            0
            • CalumC Calum

              @bradt Mean rear tyre. I hope you plan on taking this offroad!

              declanD Offline
              declanD Offline
              declan
              wrote on last edited by Mightyman
              #65

              @calum (insert generic Australian accent) that’s not a tyre, THIS is a tyre!

              https://imgur.com/a/rSZ5X47

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              • B Offline
                B Offline
                BraDT
                wrote on last edited by
                #66

                Light off-roading yeah as I’m using for work need it really can do without it breaking down!

                Just that leak to sort out now and struggling to locate one for today as need the bike tomorrow 😑 any local to Sheffield and wanna source a spare bowl gasket ?

                CalumC 1 Reply Last reply
                0
                • B BraDT

                  Light off-roading yeah as I’m using for work need it really can do without it breaking down!

                  Just that leak to sort out now and struggling to locate one for today as need the bike tomorrow 😑 any local to Sheffield and wanna source a spare bowl gasket ?

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #67

                  @bradt Literally go and make one.

                  Go to Halfrauds or a MotorWorld and just buy gasket paper.

                  Always Originate, Never Pirate!

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                  • B Offline
                    B Offline
                    BraDT
                    wrote on last edited by
                    #68

                    So will try gasket paper as silicone has stopped the leak but still seems like I’m not getting fuel to the spark ? Anything else I need to check ? All carb was cleaned out new filter in there etc getting abit stressed now

                    1 Reply Last reply
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                    • B Offline
                      B Offline
                      BraDT
                      wrote on last edited by
                      #69

                      This is a lot harder without electric start working so having to bump the bike every time I try and start it

                      1 Reply Last reply
                      0
                      • B Offline
                        B Offline
                        BraDT
                        wrote on last edited by
                        #70

                        Does anyone know where the black wire (I’m guess an earth) on the coil is meant to go

                        Iv just fitted a new startermotor to the build makes it easier to start and found I have no coil

                        Noticed the black wire with hook was connected to the coil itself should this be earthed to frame or is this right ?

                        1 Reply Last reply
                        0
                        • 2 Offline
                          2 Offline
                          2Stroke4Smoke
                          wrote on last edited by
                          #71

                          The starter motor has a red wire only which connects to the starter solenoid (this is the square thing with two fuses in it by the battery). There is a black wire with a hook which connects to the neutral switch which is located near to the starter motor at the bottom of the engine casing on the flywheel side. this in turn plugs into the part of the loom which goes into the stator/generator coil via a bullet connector. Hope this helps.

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                          • B Offline
                            B Offline
                            BraDT
                            wrote on last edited by BraDT
                            #72

                            @2Stroke4Smoke very helpful went through all wire and found a broken wire replaced and fixed nice bright sparks and fired up

                            Thank you

                            2 1 Reply Last reply
                            1
                            • B BraDT

                              @2Stroke4Smoke very helpful went through all wire and found a broken wire replaced and fixed nice bright sparks and fired up

                              Thank you

                              2 Offline
                              2 Offline
                              2Stroke4Smoke
                              wrote on last edited by
                              #73

                              @bradt Glad you got it sorted 🙂

                              1 Reply Last reply
                              1
                              • B Offline
                                B Offline
                                BraDT
                                wrote on last edited by
                                #74

                                So last night after during the match I decided to take the bike for a ride out see how everything was , bike felt great really responsive but loud but exhaust needs sorting

                                Come out for work this morning bike fired up felt great work is only 5mile away iv got just round the corner and my red light came on and the bike was steaming pretty bad I coasted it to work and iv lost all my coolant I’m aware this could be down to the head gasket but I’m hoping it may be something else.

                                There was pressure in the radiator when I took the cap off and the expansion bottle cap has stayed on any one know what else to check before I order a head gasket ?

                                Thanks

                                1 Reply Last reply
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                                • B Offline
                                  B Offline
                                  BraDT
                                  wrote on last edited by Mightyman
                                  #75

                                  Her she is looking pretty 🤔

                                  Irongamer727I 1 Reply Last reply
                                  0
                                  • B BraDT

                                    Her she is looking pretty 🤔

                                    Irongamer727I Offline
                                    Irongamer727I Offline
                                    Irongamer727
                                    wrote on last edited by
                                    #76

                                    @bradt have you bled the system of air?

                                    1 Reply Last reply
                                    0
                                    • B Offline
                                      B Offline
                                      BraDT
                                      wrote on last edited by
                                      #77

                                      I did but maybe not long enough cannot see where the coolant is coming from it’s just dried all white over the barrel and head

                                      declanD 1 Reply Last reply
                                      0
                                      • B BraDT

                                        I did but maybe not long enough cannot see where the coolant is coming from it’s just dried all white over the barrel and head

                                        declanD Offline
                                        declanD Offline
                                        declan
                                        wrote on last edited by declan
                                        #78

                                        @bradt coolant doesent dry I’ve had my fair share of leaks on hot engines and never seen it dry

                                        1 Reply Last reply
                                        0
                                        • B Offline
                                          B Offline
                                          BraDT
                                          wrote on last edited by
                                          #79

                                          @declan surely any liquid would dry and leave some kind of substance after touching a hot engine. Iv reckon iv found the culprit there a little house what connect to carbs what isn’t fully on and can see it coming from there but the amount iv lost surely hasn’t come from there I’m unsure tired and frustrated and still gotta rude home on it tonight after work!

                                          CalumC 1 Reply Last reply
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