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    Oil from Crankcase breather and won't rev out

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    • B
      Barrelman last edited by

      Just imported 1989 dt125r. Now on the road but engine cuts out at about 8k revs. Checked YPVS valve which operated fine. Carb stripped and cleaned all good. However still won't rev out. Very occasionally it will rev almost to redline but mostly it cuts out (stutters). It's also kicking oil out of breather. Any suggestions

      NINJA 1 Reply Last reply Reply Quote 0
      • DanRacing
        DanRacing last edited by

        @Barrelman said in Oil from Crankcase breather and won't rev out:

        Just imported 1989 dt125r. Now on the road but engine cuts out at about 8k revs. Checked YPVS valve which operated fine. Carb stripped and cleaned all good. However still won't rev out. Very occasionally it will rev almost to redline but mostly it cuts out (stutters). It's also kicking oil out of breather. Any suggestions

        Bad crank seals most likely

        1 Reply Last reply Reply Quote 1
        • NINJA
          NINJA @Barrelman last edited by

          @Barrelman I concur with Dan. 😉

          SEDUCED BY THE DARK SIDE!!!

          1 Reply Last reply Reply Quote 0
          • B
            Barrelman last edited by

            Thanks for replies. Now to work out how to do that. Always learning

            NINJA 1 Reply Last reply Reply Quote 0
            • NINJA
              NINJA @Barrelman last edited by

              @Barrelman Grab yourself a Haynes manual off ebay dude, there worth their weight in gold. 😉

              SEDUCED BY THE DARK SIDE!!!

              B 1 Reply Last reply Reply Quote 0
              • B
                Barrelman @NINJA last edited by

                @NINJA said in Oil from Crankcase breather and won't rev out:

                @Barrelman Grab yourself a Haynes manual off ebay dude, there worth their weight in gold. 😉

                Reading it as we speak

                1 Reply Last reply Reply Quote 1
                • Nottsbiker
                  Nottsbiker last edited by

                  Reassemble is simply the reverse of the disassembly procedure.

                  That's a gem from Haynes and about ad helpful ad an ashtray on a motorcycle 😉

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