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DT125R FORUM

  1. Home
  2. Tuning
  3. Carburetor
  4. Recommended reeds?

Recommended reeds?

Scheduled Pinned Locked Moved Carburetor
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  • CalumC Calum

    @declan Oh yeah that sounds like it's running lean.

    You could just try a lower needle setting on the carb. See if that cleans it up slightly.

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #43

    @Calum just dropped the needle the hesitation is still there but I've noticed when hot if I switch on the choke the bike does it didn't previously do this is this normal?

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    0
    • F Offline
      F Offline
      finnerz89
      wrote on last edited by
      #44

      Once the bike is warm the choke should kill it

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

      Previous:
      DR650RSE '96
      FJ1200 '92

      declanD 1 Reply Last reply
      1
      • F finnerz89

        Once the bike is warm the choke should kill it

        declanD Offline
        declanD Offline
        declan
        wrote on last edited by
        #45

        @finnerz89 thanks bud, @Calum do you think the hesitation could be my header leak? And is it normal to have smoke coming from the powervalve mechanism

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        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #46

          Smoke shouldn't be coming from the Powervalve area.

          You need to sort these little niggles out in order for us to really identify the problem.

          It may be a combination of a lot of things that are causing these issues.

          Sort the powervalve out and we can move on from there.

          Always Originate, Never Pirate!

          declanD 2 Replies Last reply
          0
          • CalumC Calum

            Smoke shouldn't be coming from the Powervalve area.

            You need to sort these little niggles out in order for us to really identify the problem.

            It may be a combination of a lot of things that are causing these issues.

            Sort the powervalve out and we can move on from there.

            declanD Offline
            declanD Offline
            declan
            wrote on last edited by
            #47

            @Calum understood I'll see what I can do I think I need a new expansion chamber the current one doesn't fit must be from the dtx or something

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            • CalumC Calum

              Smoke shouldn't be coming from the Powervalve area.

              You need to sort these little niggles out in order for us to really identify the problem.

              It may be a combination of a lot of things that are causing these issues.

              Sort the powervalve out and we can move on from there.

              declanD Offline
              declanD Offline
              declan
              wrote on last edited by declan
              #48

              @Calum right so the right side is not leaking but the left is as the video shows mixture too rich?

              declanD 1 Reply Last reply
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              • declanD declan

                @Calum right so the right side is not leaking but the left is as the video shows mixture too rich?

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #49

                @declan https://youtu.be/ERcN7r-zjy0

                CalumC 1 Reply Last reply
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                • declanD declan

                  @declan https://youtu.be/ERcN7r-zjy0

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #50

                  @declan Not really. Two strokes are not made anymore for this reason, they're oily.

                  To me it looks like the oring needs replacing.

                  The exhaust should be dripping from the expansion chamber usually.

                  I'm sure someone will disagree, but when it comes to oil, I'd rather run a little more than a little less.

                  That post the other day may interest you as it is possible that the little bush can wear out causing excessive play in the powevalve housing.

                  It could be this as well.

                  Always Originate, Never Pirate!

                  declanD 1 Reply Last reply
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                  • CalumC Calum

                    @declan Not really. Two strokes are not made anymore for this reason, they're oily.

                    To me it looks like the oring needs replacing.

                    The exhaust should be dripping from the expansion chamber usually.

                    I'm sure someone will disagree, but when it comes to oil, I'd rather run a little more than a little less.

                    That post the other day may interest you as it is possible that the little bush can wear out causing excessive play in the powevalve housing.

                    It could be this as well.

                    declanD Offline
                    declanD Offline
                    declan
                    wrote on last edited by
                    #51

                    @Calum the left side don't smoke much I thought the right side was smoking badly but that was because of my header leak that was causing me to think this, when I got the head back from the shop it was the first time I had ever seen a powervalve never mind install one so it's possible that I incorrectly installed something on the left side as I used no images or instructions when doing so

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                    • CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #52

                      Can't really go wrong mate. Two halves only go in one way. Then a bush with an oring and the pulley and end caps.

                      Use AJ Sutton exploding diagrams if you need reference.

                      To be honest, the DTR DTRE engines are pretty much the same so fitment of exhaust pipes will be fine.

                      It's just the frame mountings are different.

                      Always Originate, Never Pirate!

                      declanD 1 Reply Last reply
                      0
                      • CalumC Calum

                        Can't really go wrong mate. Two halves only go in one way. Then a bush with an oring and the pulley and end caps.

                        Use AJ Sutton exploding diagrams if you need reference.

                        To be honest, the DTR DTRE engines are pretty much the same so fitment of exhaust pipes will be fine.

                        It's just the frame mountings are different.

                        declanD Offline
                        declanD Offline
                        declan
                        wrote on last edited by
                        #53

                        @Calum then mine must be bent I'll fetch a hammer to it and see what I can do can you show me a pic of your bike btw I just want to show it someone

                        CalumC 1 Reply Last reply
                        0
                        • declanD declan

                          @Calum then mine must be bent I'll fetch a hammer to it and see what I can do can you show me a pic of your bike btw I just want to show it someone

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #54

                          @declan I don't have one handy. It's all in my project thread.

                          Uhmm a hammer isn't going to fix the issue bud.

                          It's ally so it's not going to like hammer hitting to it.

                          It's probably just the O-ring needs renewing bud.

                          Always Originate, Never Pirate!

                          declanD 1 Reply Last reply
                          0
                          • CalumC Calum

                            @declan I don't have one handy. It's all in my project thread.

                            Uhmm a hammer isn't going to fix the issue bud.

                            It's ally so it's not going to like hammer hitting to it.

                            It's probably just the O-ring needs renewing bud.

                            declanD Offline
                            declanD Offline
                            declan
                            wrote on last edited by
                            #55

                            @Calum the exhaust is bent so my only chance is hitting it I'll use a rubber mallet not a hammer

                            CalumC 1 Reply Last reply
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                            • declanD declan

                              @Calum the exhaust is bent so my only chance is hitting it I'll use a rubber mallet not a hammer

                              CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #56

                              @declan Oh I thought you meant you were going to hit hte powervalve lol.

                              Hitting it with a hammer probably won't do it much good.

                              You need to heat it up and bend it. oxy acetylene will get it hot enough to bend itback

                              Always Originate, Never Pirate!

                              declanD 2 Replies Last reply
                              0
                              • CalumC Calum

                                @declan Oh I thought you meant you were going to hit hte powervalve lol.

                                Hitting it with a hammer probably won't do it much good.

                                You need to heat it up and bend it. oxy acetylene will get it hot enough to bend itback

                                declanD Offline
                                declanD Offline
                                declan
                                wrote on last edited by
                                #57
                                This post is deleted!
                                declanD 1 Reply Last reply
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                                • declanD declan

                                  This post is deleted!

                                  declanD Offline
                                  declanD Offline
                                  declan
                                  wrote on last edited by
                                  #58
                                  This post is deleted!
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                                  • CalumC Calum

                                    @declan Oh I thought you meant you were going to hit hte powervalve lol.

                                    Hitting it with a hammer probably won't do it much good.

                                    You need to heat it up and bend it. oxy acetylene will get it hot enough to bend itback

                                    declanD Offline
                                    declanD Offline
                                    declan
                                    wrote on last edited by
                                    #59
                                    This post is deleted!
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                                    • CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #60

                                      Well it's broken isn't it.

                                      I will ask that this is a separate problem and as such should be placed within the appropriate section, rather than reeds.

                                      There are suppose to mount the exhaust to the frame with a rubber dampener. I guess Yamaha would be the place to get another one.

                                      I never ran that one to be honest anyway.

                                      Always Originate, Never Pirate!

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