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    Is this oil flow enough?

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    • declan
      declan last edited by

      This is at idle is it pumping enough liquid it drips through if I pull on the pulley

      https://youtu.be/bt-X4_dBa8o

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      • Calum
        Calum last edited by

        Not really a fair test, the engine creates a vacuum that draws the oil in too. So really it needs to be connected to the engine.

        It shouldn't be pissing out if that's what you're expecting.

        declan 2 Replies Last reply Reply Quote 0
        • declan
          declan @Calum last edited by

          @Calum not at all all and yeah I thought about the vaccume but I didn't take it into account I'll try get another vid

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          • declan
            declan @Calum last edited by

            @Calum https://youtu.be/cigfp0dOYuo

            Calum 1 Reply Last reply Reply Quote 1
            • Calum
              Calum @declan last edited by

              @declan Yeah try revving the engine.

              I think you might be surprised on how little oil the engine needs on tickover.

              It needs load on the engine to draw the oil through.

              declan 2 Replies Last reply Reply Quote 0
              • declan
                declan @Calum last edited by

                @Calum it goes through nicely when being revved

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                • declan
                  declan @Calum last edited by

                  @Calum so would you say that it's alright to go back to autolube?

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                  • Calum
                    Calum last edited by

                    Yeah, I always upped the oilpump settings on idle.

                    Remeber, if you are doinh 70 at 8k revs, and shut the throttle off, the only oil that that engine will get, will be what you showed me in thatvideo.

                    That is often how a lot of two strokes seize.

                    declan 1 Reply Last reply Reply Quote 0
                    • declan
                      declan @Calum last edited by

                      @Calum so I still can't use engine braking and still have to blip the throttle at coasting?

                      F Calum 2 Replies Last reply Reply Quote 0
                      • F
                        finnerz89 @declan last edited by finnerz89

                        @declan if you want engine braking get a big four stroke single, my DR650 used to lock the back wheel 😂

                        declan 1 Reply Last reply Reply Quote 0
                        • Calum
                          Calum @declan last edited by

                          @declan Yeah that's two strokes for you lol.

                          That's why two stroke cars went out of fashion really quickly. That and of course the economy happened lol.

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                          • declan
                            declan @finnerz89 last edited by

                            @finnerz89 my 140 does the same who need rear brakes lol

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                            • J
                              Jens Eskildsen last edited by

                              Theres way more oil flowing at 8000rpm engine braking, than at idle, because of the vacuum.

                              I still wouldnt enginebrake, its just good practise to pull the clutch and rev the bike occasionally.

                              Calum 1 Reply Last reply Reply Quote 1
                              • Calum
                                Calum @Jens Eskildsen last edited by

                                @Jens-Eskildsen Absolutely, HOWEVER. The throttle is shut OFF. Therefore there won't be the same vacuum pressure.

                                declan 1 Reply Last reply Reply Quote 0
                                • declan
                                  declan @Calum last edited by

                                  @Calum yeah I think I'll just clutch in and blip throttle lol

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                                  • J
                                    Jens Eskildsen last edited by

                                    When I fitted a clear hose on my oilpump, i tested how much oil was pumped at high revs, with throttle shut (engine braking) the oilpump was kept open until the revs dropped, and plenty of oil was being pumped out. Kinda the same happens when you blip the throttle, just to a lesser extent, in that the rpms drop faster.

                                    I have no background to say weather or not the difference in vacuum with throttle on and off is significant, so im going to trust you on that one. With premix you shut of both the gas and thereby the oilsupply when you enginebrake, so I guess the problem is even bigger when running premix, compared to having the oilpump.

                                    But I think we all agree that its good practise to pull the clutch instead of coasting.

                                    declan Calum 2 Replies Last reply Reply Quote 1
                                    • declan
                                      declan @Jens Eskildsen last edited by

                                      @Jens-Eskildsen agreed

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                                      • Calum
                                        Calum @Jens Eskildsen last edited by

                                        @Jens-Eskildsen It would make sense for the pump to be designed that way.

                                        The oil pump is controlled by two elements, indirectly from the primary shaft, and by the cable.

                                        However, if you look at the pressure at the crankcase using a vacuum gauge, I'm sure you'd see negative air pressure.

                                        Since my car has a vacuum gauge, I know when my foot is off the throttle I see like -0.8bar.

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