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DT125R FORUM

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  4. Oil Pump/Auto lube dramas

Oil Pump/Auto lube dramas

Scheduled Pinned Locked Moved Engine
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  • CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #2

    The pumps are not refurbushable. A new pump will be required if this is the case.

    The oil line feeds directly into the inlet manifold not the carbuettor.

    The carburettor will accept coolant lines, so get those the wrong way round and....

    It's not uncommon for the pumps to fail, in which case the best advice I would give would be to simply run premix.

    Always Originate, Never Pirate!

    Irongamer727I SpannersS 2 Replies Last reply
    0
    • CalumC Calum

      The pumps are not refurbushable. A new pump will be required if this is the case.

      The oil line feeds directly into the inlet manifold not the carbuettor.

      The carburettor will accept coolant lines, so get those the wrong way round and....

      It's not uncommon for the pumps to fail, in which case the best advice I would give would be to simply run premix.

      Irongamer727I Offline
      Irongamer727I Offline
      Irongamer727
      wrote on last edited by
      #3

      @calum why would you ever need the coolant running through the carb. Never understood that myself.

      declanD 1 Reply Last reply
      0
      • Irongamer727I Irongamer727

        @calum why would you ever need the coolant running through the carb. Never understood that myself.

        declanD Offline
        declanD Offline
        declan
        wrote on last edited by
        #4

        @irongamer727 it’s to stop it freezing up? I’ve never got it my self it seems stupid to me

        CalumC 1 Reply Last reply
        0
        • declanD declan

          @irongamer727 it’s to stop it freezing up? I’ve never got it my self it seems stupid to me

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #5

          @declan More likely to freeze if there is coolant inside it.

          It's probably to add some heat to the fuel to help it atomise better. Since four strokes atomise their fuel using high fuel pressure and probably an ultrasonic quartz crystal.

          Always Originate, Never Pirate!

          1 Reply Last reply
          0
          • CalumC Calum

            The pumps are not refurbushable. A new pump will be required if this is the case.

            The oil line feeds directly into the inlet manifold not the carbuettor.

            The carburettor will accept coolant lines, so get those the wrong way round and....

            It's not uncommon for the pumps to fail, in which case the best advice I would give would be to simply run premix.

            SpannersS Offline
            SpannersS Offline
            Spanners
            wrote on last edited by
            #6

            @calum
            Thanks again!
            Seems strange a fragile part like this is unserviceable but l have managed to source a couple of units so l will check which works the best and replace the old one.
            Now this should really be one of the last fixes, l can wait to finish off and enjoy the fruits of my labour!
            And post a picture for you guys of course! πŸ˜‚πŸ‘

            1 Reply Last reply
            1
            • D Offline
              D Offline
              DTR+NSR
              wrote on last edited by
              #7

              The coolant feeds will be there to warm the carb to help prevent 'carb icing'.

              1 Reply Last reply
              0
              • O Offline
                O Offline
                oldman
                wrote on last edited by
                #8

                Have found a guy that can repair/refurb the oil pumps like new, has done 2 for me so far, let me know if you want his details.

                CalumC 1 Reply Last reply
                1
                • O oldman

                  Have found a guy that can repair/refurb the oil pumps like new, has done 2 for me so far, let me know if you want his details.

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #9

                  @oldman Yamaha told me they were non-serviceable. Interesting.

                  Always Originate, Never Pirate!

                  1 Reply Last reply
                  0
                  • O Offline
                    O Offline
                    oldman
                    wrote on last edited by
                    #10

                    Found him via recommendation on dt mx site, did a 250 pump and also 89 dt I am currently doing, yamaha parts and seals supplied, will post photo shortly of 89 pump I have just got back

                    1 Reply Last reply
                    0
                    • O Offline
                      O Offline
                      oldman
                      wrote on last edited by
                      #11

                      There you go
                      0_1510244237423_20171106_101323-1224x1632.jpg
                      0_1510244261554_20171106_101300-1224x1632.jpg

                      CalumC SpannersS 2 Replies Last reply
                      0
                      • O oldman

                        There you go
                        0_1510244237423_20171106_101323-1224x1632.jpg
                        0_1510244261554_20171106_101300-1224x1632.jpg

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

                        @oldman Looks superb

                        Always Originate, Never Pirate!

                        1 Reply Last reply
                        0
                        • O oldman

                          There you go
                          0_1510244237423_20171106_101323-1224x1632.jpg
                          0_1510244261554_20171106_101300-1224x1632.jpg

                          SpannersS Offline
                          SpannersS Offline
                          Spanners
                          wrote on last edited by
                          #13

                          @oldman
                          Wow, the oil pump looks fantastic.
                          I would love to have the guys details, pre mixing seems quite prehistoric.
                          And l would love the engine working all correctly......darn these OCD’s! 😏

                          CalumC NINJAN 2 Replies Last reply
                          0
                          • O Offline
                            O Offline
                            oldman
                            wrote on last edited by
                            #14

                            Hi, his name is Gary and his email is morysjones@gmail.com, first class imho!

                            1 Reply Last reply
                            0
                            • SpannersS Spanners

                              @oldman
                              Wow, the oil pump looks fantastic.
                              I would love to have the guys details, pre mixing seems quite prehistoric.
                              And l would love the engine working all correctly......darn these OCD’s! 😏

                              CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #15

                              @spanners Nah man, OCD is good. Forums are OCD.

                              IMO, get it running spot on. It's worth it. But a lot of people tend to be short on cash, so I was merely offering a quick win.

                              Always Originate, Never Pirate!

                              1 Reply Last reply
                              0
                              • SpannersS Spanners

                                @oldman
                                Wow, the oil pump looks fantastic.
                                I would love to have the guys details, pre mixing seems quite prehistoric.
                                And l would love the engine working all correctly......darn these OCD’s! 😏

                                NINJAN Offline
                                NINJAN Offline
                                NINJA
                                wrote on last edited by
                                #16

                                @spanners We all have OCD in some way, shape or form bud. And there's absolutely nothing wrong with having a healthy obsession on/in something, it just proves that you have a soul and take great pride in creating something beautiful!!! πŸ˜‰

                                SEDUCED BY THE DARK SIDE!!!

                                1 Reply Last reply
                                0
                                • O Offline
                                  O Offline
                                  oldman
                                  wrote on last edited by
                                  #17

                                  IMHO if it's there it should work, annoys me if it doesn't, keep thinking about it until I give in and correct it.

                                  1 Reply Last reply
                                  0
                                  • SpannersS Offline
                                    SpannersS Offline
                                    Spanners
                                    wrote on last edited by Spanners
                                    #18

                                    Well guys I’m certainly in the right place with this forum.
                                    @Calum I realise and understand your thinking, you always offer a way to still ride the bike to enjoy it. πŸ˜ƒ
                                    I just want to get shot of the bodges, turned screw heads, snapped bolts and quick fixes.
                                    @oldman thank you for the contact, I really appreciate it. I’m hoping both the pumps l got hold of work, then l can send one off to be refurbished.
                                    @NINJA thank you for your kind words, l say great minds think alike...... and congregate in similar places!
                                    I should be able to take it out this weekend, even my new rear fender for AJ Sutton has turned up, that has got to be good luck! πŸ€£πŸ‘

                                    1 Reply Last reply
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