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DT125R FORUM

  1. Home
  2. Tuning
  3. Carburetor
  4. Idle jet.

Idle jet.

Scheduled Pinned Locked Moved Carburetor
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  • jakeyboyJ Offline
    jakeyboyJ Offline
    jakeyboy
    wrote on last edited by
    #1

    Recently my bike doesn’t want to idle, I stripped down the carb and completely cleaned it as well as the jets twice. The idle jet was blocked both times I cleaned it, after putting it back together it would run as normal until the idle jet blocked again and then would have to be constantly revving it to avoid killing the bike at the lights...

    Any ideas why this is happening?
    Cheers guys

    ringdingdingR 1 Reply Last reply
    0
    • jakeyboyJ jakeyboy

      Recently my bike doesn’t want to idle, I stripped down the carb and completely cleaned it as well as the jets twice. The idle jet was blocked both times I cleaned it, after putting it back together it would run as normal until the idle jet blocked again and then would have to be constantly revving it to avoid killing the bike at the lights...

      Any ideas why this is happening?
      Cheers guys

      ringdingdingR Offline
      ringdingdingR Offline
      ringdingding
      wrote on last edited by
      #2

      @jakeyboy blocked with what? crap from the tank, are you using a filter? is the tank clean enough inside?

      jakeyboyJ 2 Replies Last reply
      1
      • ringdingdingR ringdingding

        @jakeyboy blocked with what? crap from the tank, are you using a filter? is the tank clean enough inside?

        jakeyboyJ Offline
        jakeyboyJ Offline
        jakeyboy
        wrote on last edited by
        #3

        @ringdingding no filter for the fuel, and very hard to tell as the hole is tiny so can’t make it out

        1 Reply Last reply
        0
        • ringdingdingR ringdingding

          @jakeyboy blocked with what? crap from the tank, are you using a filter? is the tank clean enough inside?

          jakeyboyJ Offline
          jakeyboyJ Offline
          jakeyboy
          wrote on last edited by
          #4

          @ringdingding and haven’t a clue about the condition of the inside of tank

          1 Reply Last reply
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          • jakeyboyJ Offline
            jakeyboyJ Offline
            jakeyboy
            wrote on last edited by
            #5

            Would what I’m putting on my air filter have something to do with it?

            NINJAN 1 Reply Last reply
            0
            • jakeyboyJ jakeyboy

              Would what I’m putting on my air filter have something to do with it?

              NINJAN Offline
              NINJAN Offline
              NINJA
              wrote on last edited by
              #6

              @jakeyboy Upload some pics dude, it will be easier to see and assist you then!!! 😉

              SEDUCED BY THE DARK SIDE!!!

              1 Reply Last reply
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              • jakeyboyJ Offline
                jakeyboyJ Offline
                jakeyboy
                wrote on last edited by
                #7

                Ok sound, pictures of the inside of the carb I’m guessing? Haha

                NINJAN 1 Reply Last reply
                0
                • jakeyboyJ jakeyboy

                  Ok sound, pictures of the inside of the carb I’m guessing? Haha

                  NINJAN Offline
                  NINJAN Offline
                  NINJA
                  wrote on last edited by
                  #8

                  @jakeyboy Yes if it keeps getting blocked then something is pumping out some crap somewhere? Most likely you either have a blocked fuel filter or no filter at all? You can add an in-line fuel filter for as little as £1. It would be worth adding one of these as they are transparent and then you can see what's being pumped in and if it's good or bad???

                  https://www.ebay.co.uk/itm/INLINE-FUEL-FILTER/292904950940?hash=item44327edc9c:g:ifMAAOSwx6pYohVq:rk:1:pf:1&frcectupt=true

                  SEDUCED BY THE DARK SIDE!!!

                  1 Reply Last reply
                  1
                  • jakeyboyJ Offline
                    jakeyboyJ Offline
                    jakeyboy
                    wrote on last edited by
                    #9

                    Emptied fuel tank, just clean fuel. Cleaned it out also. Cleaned air filter also and still getting blocked... any recommendations? Shall I try size up the jet?

                    1 Reply Last reply
                    0
                    • F Offline
                      F Offline
                      finnerz89
                      wrote on last edited by
                      #10

                      Yeah I recommend an inline fuel filter 👍

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

                      Previous:
                      DR650RSE '96
                      FJ1200 '92

                      1 Reply Last reply
                      0
                      • MiniaM Offline
                        MiniaM Offline
                        Minia
                        wrote on last edited by
                        #11

                        Have you removed the fuel tap at all? Start with that and flush the tank with water, could be plenty of dirt sticking at the bottom. Just give it a good clean and when you put it back together make sure there isn't any water left at all, that could lead to serious problems. Also check your air-filter, if its slightly oily that is normal. Check the seal is still intact between your filter and airbox outlet, I imagine if there isn't it can let dust and dirt get through which will eventually cause issues.

                        And as the others said, an in-line fuel filter is almost a must-have. You can buy them in a bundle for next to nothing.

                        Yamaha DT125R Blue 2002, XT 125 1982, Yamaha WR250Z 1992, BMW GS650F 1994, Benelli BN302 2015

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