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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

    So i changed oil on my dtre, and when i started it up it was just fine. Next time i started it, it made a weird sound, it sounds like the clutch, the bike vibrates a lot when reving, when shifting gears it seems like the clutch doesn't want to let go.

    The oil i've used is SAE 10w40, i read in the manual that the right one is 10w30. Does this have any effect on the clutch?

    This problem werent there before oil change.

    https://www.youtube.com/watch?v=TLG72WfwCEI&feature=youtu.be

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #2

    @bananper I have run 10w40 since I got mine I run it in all my bikes that’s not necessarily your problem did you use motorbike specific oil and is the level correct in the little hour glass I think it’s on the clutch case

    1 Reply Last reply
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    • CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #3

      As @declan says, the oil must be suitable for clutches.

      Always Originate, Never Pirate!

      1 Reply Last reply
      1
      • B Offline
        B Offline
        Bananper
        wrote on last edited by
        #4

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

        declanD F 2 Replies Last reply
        0
        • 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
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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.

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

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

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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

                    1 Reply Last reply
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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
                        1
                        • 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
                                  0
                                  • 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
                                      0
                                      • 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
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