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DT125R FORUM

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  4. Weird problem after oil change

Weird problem after oil change

Scheduled Pinned Locked Moved Engine
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  • B Bananper

    No the oil is not specially made for motorbikes, so that might be the cause?

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #5

    @bananper I’d lay my bets on it I mean you need to change it anyway so change it and if it fixes it then that’s a bonus motorbike clutches hate car oil

    CalumC 1 Reply Last reply
    0
    • B Bananper

      No the oil is not specially made for motorbikes, so that might be the cause?

      F Offline
      F Offline
      finnerz89
      wrote on last edited by
      #6

      @bananper if your friction plates are contaminated it might be time for new ones now I'm afraid

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

      Previous:
      DR650RSE '96
      FJ1200 '92

      1 Reply Last reply
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      • declanD declan

        @bananper I’d lay my bets on it I mean you need to change it anyway so change it and if it fixes it then that’s a bonus motorbike clutches hate car oil

        CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #7

        @declan Not true, I use Castrol GTX 5w-30 semi synthetic engine oil on my DT no problems.

        Definitely does not like Magnetec though. Having ran that for a week or so, the clutch plates survived and went on to do many more miles.

        Always Originate, Never Pirate!

        declanD F 2 Replies Last reply
        0
        • CalumC Calum

          @declan Not true, I use Castrol GTX 5w-30 semi synthetic engine oil on my DT no problems.

          Definitely does not like Magnetec though. Having ran that for a week or so, the clutch plates survived and went on to do many more miles.

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #8

          @calum not sure what you mean mate what am I wrong about?

          1 Reply Last reply
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          • CalumC Calum

            @declan Not true, I use Castrol GTX 5w-30 semi synthetic engine oil on my DT no problems.

            Definitely does not like Magnetec though. Having ran that for a week or so, the clutch plates survived and went on to do many more miles.

            F Offline
            F Offline
            finnerz89
            wrote on last edited by
            #9

            @calum fair enough. I've heard of people having to change the plates after running the wrong oil.

            You need oil that's JASO MA or MA2 spec oil, you won't go wrong with that.
            Believe or not some diesel engine oils actually meet that spec, a lot of DR650 forum members ran it in their bikes, but I never tried it.

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

            Previous:
            DR650RSE '96
            FJ1200 '92

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            1
            • B Offline
              B Offline
              Bananper
              wrote on last edited by Bananper
              #10

              @Calum @declan @finnerz89 so here's a video on whats happening. Im not sure if you can hear it, but the whole bike is vibrating, espesially the chain and the rear half of the bike

              https://youtu.be/TLG72WfwCEI

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              • B Offline
                B Offline
                Bananper
                wrote on last edited by
                #11

                changed to the correct oil before the video was filmed, exactly the same problem.

                1 Reply Last reply
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                • MiniaM Offline
                  MiniaM Offline
                  Minia
                  wrote on last edited by
                  #12

                  The thing is we can't really see how much it is vibrating, personally I don't think it is much of a problem. All of my 2-stroke off-road bikes have vibrated, most notably my GasGas. After 10 minutes of full throttle you won't be able to feel your feet. How many miles has that engine got? If your bike is vibrating more than you believe it needs to, it would make me think the problem is a bigger one. I'd check the engine mounts, however unlikely it is.

                  Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                  B 1 Reply Last reply
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                  • MiniaM Minia

                    The thing is we can't really see how much it is vibrating, personally I don't think it is much of a problem. All of my 2-stroke off-road bikes have vibrated, most notably my GasGas. After 10 minutes of full throttle you won't be able to feel your feet. How many miles has that engine got? If your bike is vibrating more than you believe it needs to, it would make me think the problem is a bigger one. I'd check the engine mounts, however unlikely it is.

                    B Offline
                    B Offline
                    Bananper
                    wrote on last edited by
                    #13

                    @minia around 24k, the engine has been rebuilt by an mc shop when the previous owner had it. It has never been shaking like this, just came out of nowhere

                    CalumC 1 Reply Last reply
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                    • B Bananper

                      @minia around 24k, the engine has been rebuilt by an mc shop when the previous owner had it. It has never been shaking like this, just came out of nowhere

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #14

                      @bananper If that engines been split, then they either haven't timed the engine correctly, or the clutch hasn't been assembled properly.

                      Either way easy job to fix, engine in the frame jobby.

                      Always Originate, Never Pirate!

                      B 1 Reply Last reply
                      0
                      • B Offline
                        B Offline
                        Bananper
                        wrote on last edited by Bananper
                        #15

                        @Calum @declan @finnerz89 @Minia

                        Looks like i've found the problem, only thing is that that the clutch basket is loose and i dont think its supposed to be that way

                        http://imgur.com/a/0ZTcq96

                        CalumC 1 Reply Last reply
                        0
                        • B Bananper

                          @Calum @declan @finnerz89 @Minia

                          Looks like i've found the problem, only thing is that that the clutch basket is loose and i dont think its supposed to be that way

                          http://imgur.com/a/0ZTcq96

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #16

                          @bananper The clutch basket is fastened in with a nut and a tab washer.

                          Always Originate, Never Pirate!

                          B 1 Reply Last reply
                          0
                          • CalumC Calum

                            @bananper The clutch basket is fastened in with a nut and a tab washer.

                            B Offline
                            B Offline
                            Bananper
                            wrote on last edited by
                            #17

                            @calum what torque is it supposed to have

                            CalumC 1 Reply Last reply
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                            • B Bananper

                              @calum what torque is it supposed to have

                              CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #18

                              @bananper Have to check the manual I'm afraid. I'd image it's pretty high and you will need to lock off the crankshaft to do it.

                              Always Originate, Never Pirate!

                              B 1 Reply Last reply
                              0
                              • CalumC Calum

                                @bananper Have to check the manual I'm afraid. I'd image it's pretty high and you will need to lock off the crankshaft to do it.

                                B Offline
                                B Offline
                                Bananper
                                wrote on last edited by
                                #19

                                @calum i'll take the bike to my local mc shop and let them have a look on it, i think the bearing located behind the clutch bucket is bad

                                1 Reply Last reply
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                                • MiniaM Offline
                                  MiniaM Offline
                                  Minia
                                  wrote on last edited by
                                  #20

                                  @Bananper A loose clutch basket seems like a good culprit, but you need to know why it is loose. Or what made it loose. Well anyway, if you're taking it to a local shop they should be able to find and fix the problem. Afterall, the DT engine is pretty easy to work with.

                                  Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

                                  1 Reply Last reply
                                  1
                                  • B Offline
                                    B Offline
                                    Bananper
                                    wrote on last edited by
                                    #21

                                    Is the basket supposed to sit really thight or should there be some movement? It's not very loose, just a tiny bit. Do i need to split the engine to change the bearing behind the basket?

                                    declanD 1 Reply Last reply
                                    0
                                    • B Bananper

                                      Is the basket supposed to sit really thight or should there be some movement? It's not very loose, just a tiny bit. Do i need to split the engine to change the bearing behind the basket?

                                      declanD Offline
                                      declanD Offline
                                      declan
                                      wrote on last edited by
                                      #22

                                      @bananper any movement will be highly exaggerated when the engine is running don’t use the bike you will easily destroy something my 250 is about 80nm I just stuck a ratchet on there and cranked it don’t (don’t do what I do)

                                      1 Reply Last reply
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                                      • F Offline
                                        F Offline
                                        finnerz89
                                        wrote on last edited by
                                        #23

                                        Am I the only one who's noticed the chunk missing from the pressure plate? Lol

                                        I'd like the know where the missing piece went

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

                                        Previous:
                                        DR650RSE '96
                                        FJ1200 '92

                                        CalumC 1 Reply Last reply
                                        1
                                        • F finnerz89

                                          Am I the only one who's noticed the chunk missing from the pressure plate? Lol

                                          I'd like the know where the missing piece went

                                          CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #24

                                          @finnerz89 That's some beady eyes you have on you.

                                          Without that, the spring won't torque down properly.

                                          I can't say what real world difference that will actually make, but it might be enough to cause a problem.

                                          Always Originate, Never Pirate!

                                          F 1 Reply Last reply
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