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DT125R FORUM

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  4. Athena 170

Athena 170

Scheduled Pinned Locked Moved Top End
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  • CalumC Calum

    @irongamer727 Better carb mate.

    I had issues with my Athena as well. Carb sorted that out.

    I had issues with the stock cylinder. Carb sorted that out.

    Irongamer727I Offline
    Irongamer727I Offline
    Irongamer727
    wrote on last edited by
    #58

    @calum ehm. No. Won't change that. Problem lies somewhere else.

    CalumC 1 Reply Last reply
    0
    • Irongamer727I Offline
      Irongamer727I Offline
      Irongamer727
      wrote on last edited by
      #59

      If I only had a kickstart...

      1 Reply Last reply
      0
      • Irongamer727I Irongamer727

        @calum ehm. No. Won't change that. Problem lies somewhere else.

        CalumC Online
        CalumC Online
        Calum
        wrote on last edited by
        #60

        @irongamer727 That's what you want mate.

        alt text

        https://www.ebay.co.uk/itm/YAMAHA-TZR-125-4DL-yr-92-CARBURETTOR-DELLORTO-VHSA-32-GS/282744266127?hash=item41d4df1d8f:g:GTwAAOSwrhhaFTOk

        That'll fix your problem guaranteed!

        I literally don't know why the original carb sucks balls lol.

        Always Originate, Never Pirate!

        declanD 1 Reply Last reply
        0
        • CalumC Calum

          @irongamer727 That's what you want mate.

          alt text

          https://www.ebay.co.uk/itm/YAMAHA-TZR-125-4DL-yr-92-CARBURETTOR-DELLORTO-VHSA-32-GS/282744266127?hash=item41d4df1d8f:g:GTwAAOSwrhhaFTOk

          That'll fix your problem guaranteed!

          I literally don't know why the original carb sucks balls lol.

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #61

          @calum I’d rathet bump start it than pay that price lol

          CalumC 1 Reply Last reply
          0
          • declanD declan

            @calum I’d rathet bump start it than pay that price lol

            CalumC Online
            CalumC Online
            Calum
            wrote on last edited by
            #62

            @declan Yeah but that's just the cost of tuning for you bud.

            Always Originate, Never Pirate!

            declanD 1 Reply Last reply
            0
            • CalumC Calum

              @declan Yeah but that's just the cost of tuning for you bud.

              declanD Offline
              declanD Offline
              declan
              wrote on last edited by
              #63

              @calum cost of genuine carbs tbh carbs are quite pricey

              1 Reply Last reply
              0
              • Irongamer727I Offline
                Irongamer727I Offline
                Irongamer727
                wrote on last edited by
                #64

                Things are not going my way. 180km into break in I spotted 2 small holes on the cylinder. I have spoken to the company I bought the kit from and they will contact Athena for assistance. Hopefully this ends well..

                https://youtu.be/JSdh4gz1p8w

                1 Reply Last reply
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                • Irongamer727I Offline
                  Irongamer727I Offline
                  Irongamer727
                  wrote on last edited by
                  #65

                  What do you think? I've now fitted a 310 main jet and she's still a bit down on power. It felt better than the 290 for sure. Now I'm thinking about buying a couple of extra jets, 320-350.
                  Is this even possible? I've not spoken to anyone running higher than 280.

                  1 Reply Last reply
                  0
                  • 2 Offline
                    2 Offline
                    2stroketerry
                    wrote on last edited by
                    #66

                    If using a TM28 carb then need a 300 main jet with a 27.5 idle jet. Main jets go up to 430. Put clip in the bottom groove on needle.
                    https://www.sip-scootershop.com/en/products/main+jet+mikuni+300+_40703000

                    https://www.sip-scootershop.com/en/products/idle+jet+mikuni+275+_40726000

                    Irongamer727I 1 Reply Last reply
                    0
                    • 2 2stroketerry

                      If using a TM28 carb then need a 300 main jet with a 27.5 idle jet. Main jets go up to 430. Put clip in the bottom groove on needle.
                      https://www.sip-scootershop.com/en/products/main+jet+mikuni+300+_40703000

                      https://www.sip-scootershop.com/en/products/idle+jet+mikuni+275+_40726000

                      Irongamer727I Offline
                      Irongamer727I Offline
                      Irongamer727
                      wrote on last edited by
                      #67

                      @2stroketerry I'm running 310 now and it's certainly not optimal. Idle is 35 now, definitely too big.

                      1 Reply Last reply
                      0
                      • Irongamer727I Offline
                        Irongamer727I Offline
                        Irongamer727
                        wrote on last edited by
                        #68

                        In reality, what would cause the bike not to start on the first or second spin on the starter. Is it just down to the pilot jet and fuel/Air mix?
                        Obviously a good battery and fresh electric components will make things easier but I got that covered.

                        I've read in the Haynes that there is supposed to be a starter jet in the later carbs? Much of what that books says makes no sense...

                        1 Reply Last reply
                        0
                        • Louis-DT-WRL Offline
                          Louis-DT-WRL Offline
                          Louis-DT-WR
                          wrote on last edited by
                          #69

                          I run the autolube on my dt125r bottom end with wr200 top end. I just adjusted it to suit the larger capacity. I've run it for years. Autolube is brilliant

                          Irongamer727I 1 Reply Last reply
                          2
                          • Louis-DT-WRL Louis-DT-WR

                            I run the autolube on my dt125r bottom end with wr200 top end. I just adjusted it to suit the larger capacity. I've run it for years. Autolube is brilliant

                            Irongamer727I Offline
                            Irongamer727I Offline
                            Irongamer727
                            wrote on last edited by Irongamer727
                            #70

                            @louis-james hows that thing to start?

                            1 Reply Last reply
                            0
                            • Louis-DT-WRL Offline
                              Louis-DT-WRL Offline
                              Louis-DT-WR
                              wrote on last edited by
                              #71

                              First kick 99% of the time

                              Irongamer727I 1 Reply Last reply
                              0
                              • Louis-DT-WRL Louis-DT-WR

                                First kick 99% of the time

                                Irongamer727I Offline
                                Irongamer727I Offline
                                Irongamer727
                                wrote on last edited by
                                #72

                                @louis-james you run the 28mm carb? The flat one?

                                1 Reply Last reply
                                0
                                • Louis-DT-WRL Offline
                                  Louis-DT-WRL Offline
                                  Louis-DT-WR
                                  wrote on last edited by
                                  #73

                                  I used to, I had the tmx30 for a while, now a tm34ss

                                  Irongamer727I 1 Reply Last reply
                                  0
                                  • Louis-DT-WRL Louis-DT-WR

                                    I used to, I had the tmx30 for a while, now a tm34ss

                                    Irongamer727I Offline
                                    Irongamer727I Offline
                                    Irongamer727
                                    wrote on last edited by
                                    #74

                                    @louis-james you ran the 28 with the wr200?

                                    1 Reply Last reply
                                    0
                                    • Louis-DT-WRL Offline
                                      Louis-DT-WRL Offline
                                      Louis-DT-WR
                                      wrote on last edited by
                                      #75

                                      No, I had the 30 when it was still a 125. Lid was cut off the air box the the 28mm btw

                                      Irongamer727I 1 Reply Last reply
                                      0
                                      • Louis-DT-WRL Louis-DT-WR

                                        No, I had the 30 when it was still a 125. Lid was cut off the air box the the 28mm btw

                                        Irongamer727I Offline
                                        Irongamer727I Offline
                                        Irongamer727
                                        wrote on last edited by
                                        #76

                                        @louis-james alright

                                        Louis-DT-WRL 1 Reply Last reply
                                        0
                                        • Irongamer727I Irongamer727

                                          @louis-james alright

                                          Louis-DT-WRL Offline
                                          Louis-DT-WRL Offline
                                          Louis-DT-WR
                                          wrote on last edited by
                                          #77

                                          @irongamer727 recommend getting a decent reed block on there. Many can be modified to fit

                                          Irongamer727I 1 Reply Last reply
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