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DT125R FORUM

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  4. Athena 170

Athena 170

Scheduled Pinned Locked Moved Top End
112 Posts 14 Posters 31.8k Views
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  • 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
              0
              • 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
                                        0
                                        • Louis-DT-WRL Louis-DT-WR

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

                                          Irongamer727I Offline
                                          Irongamer727I Offline
                                          Irongamer727
                                          wrote on last edited by
                                          #78

                                          @louis-james naah at the moment I simply want her to run good, start easy and stay that way.

                                          1 Reply Last reply
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