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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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  • 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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      • 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.

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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!

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                • 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
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                  • 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
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                    • 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
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                        • 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

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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
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                            • 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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                              • 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)

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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
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                                  • 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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                                    • B Offline
                                      B Offline
                                      Bananper
                                      wrote on last edited by
                                      #25

                                      Yup, i'm getting a new pressure plate obviously. I took the bucket of, and the axle is moving a little bit, it shouldn't move right?

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                                      • B Offline
                                        B Offline
                                        Bananper
                                        wrote on last edited by
                                        #26
                                        This post is deleted!
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                                        • B Offline
                                          B Offline
                                          Bananper
                                          wrote on last edited by Bananper
                                          #27

                                          Is this too much? It moves about 2mm
                                          https://youtu.be/3ZEvNP-LKpU

                                          Irongamer727I 1 Reply Last reply
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