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Yamaha dt125re rebuild

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  • B Offline
    B Offline
    BraDT
    wrote on 12 Jul 2018, 18:00 last edited by
    #83

    Wasn’t that long ago I head the skimmed and new gasket carnt see any visible leakage from bottom of the head top of barrel, I can see the odd drip coming from the hose where it connect to the head from the radiator.

    But will be replacing the head gasket anyways done it plenty of times so it’s an easy enough job

    But thanks for reply mate

    2 1 Reply Last reply 12 Jul 2018, 18:53
    0
    • B BraDT
      12 Jul 2018, 18:00

      Wasn’t that long ago I head the skimmed and new gasket carnt see any visible leakage from bottom of the head top of barrel, I can see the odd drip coming from the hose where it connect to the head from the radiator.

      But will be replacing the head gasket anyways done it plenty of times so it’s an easy enough job

      But thanks for reply mate

      2 Offline
      2 Offline
      2Stroke4Smoke
      wrote on 12 Jul 2018, 18:53 last edited by
      #84

      @bradt You won't be able to see any visible leakage as it will be leaking internally - the coolant will be draining into the combustion chamber

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      • C Offline
        C Offline
        Calum
        wrote on 12 Jul 2018, 19:27 last edited by
        #85

        I'd say head gasket. Can only use Athena or genuine head gasket on these engines. Other copies fail.

        Always Originate, Never Pirate!

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        0
        • B Offline
          B Offline
          BraDT
          wrote on 13 Jul 2018, 06:16 last edited by
          #86

          Iv only ever used Athena gasket for my rebuilds

          Iv emailed pjme for a quote on rebore re skim and new piston to fit just in case the worse

          Going to re do the gasket over weekend and see how things go

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          • B Offline
            B Offline
            BraDT
            wrote on 13 Jul 2018, 14:03 last edited by
            #87

            Hi does anyone know what size the studs should be for the exhaust ?

            Sitting on the bike , the right hand stud / bolt the threads are stripped does anyone know what size it should be because at the minute I’m only getting a m14 to fit but the other side is a m12

            Does anyone know how deep how wide it should be thanks ?

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            • F Offline
              F Offline
              finnerz89
              wrote on 13 Jul 2018, 18:06 last edited by
              #88

              M8 on my bike lol. When you say M12 or M14 do you mean the spanner size?

              Current bikes:
              DT125X '07
              Street Triple R '11
              Aprilia ETV1000 '02

              Previous:
              DR650RSE '96
              FJ1200 '92

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              • G Offline
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                Glynn123
                wrote on 13 Jul 2018, 18:46 last edited by
                #89

                Yeah M8 on mine too, my last cylinder had one M8 and the other drilled and tapped to M10, I'm guessing these alloy threads are easy to strip.

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                • B Offline
                  B Offline
                  BraDT
                  wrote on 13 Jul 2018, 21:14 last edited by
                  #90

                  I’m taking it round to me mates tomorrow he’s gunna tap and thread it properly while I change the head gaskets

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                  • B Offline
                    B Offline
                    BraDT
                    wrote on 14 Jul 2018, 19:37 last edited by
                    #91

                    So today I got the head gasket sorted head not warped lucky enough got it all back together and back home for a wash and wax when the weather cooled down.

                    https://i.imgur.com/XbDFqJ0.jpg
                    https://i.imgur.com/Tuag8qw.jpg

                    Now wanting to change the white out to back so as the months go by I’ll be changing a lot more going for a stealthy look withs Yamaha blue.

                    Will keep more pictures uploaded 👍🏻

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                    • C Offline
                      C Offline
                      Calum
                      wrote on 14 Jul 2018, 21:35 last edited by
                      #92

                      Looking really smart mate!

                      Always Originate, Never Pirate!

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