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DT125R FORUM

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  4. Polini vs OKO PWK carburetors

Polini vs OKO PWK carburetors

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  • CalumC Calum

    In what context is it a good option?

    Is your bike modified or tuned?

    The stock carb is decent. Obviously you will have to jet the new carb accordingly which can be both painstaking and time consuming. Not to mention costly.

    Even then you would probably benefit from the 4DL carb found on belgardas. Which ran the same engine as the dtte. Vhsa 32mm.

    D Offline
    D Offline
    DanielClox
    wrote on last edited by
    #4

    @Calum The bike is stock. What I have been told is that the stock engine will work well with the 30mm carb. I actually like the stock carb, my problem is that I can't find a repair kit, so I thought, if im buying a new one might aswell go for the 30mm.

    The reason I mentioned the PWKs is the price, these two that I am talking about are about 3x less expensive than a dellorto.

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    • O oldman

      @DanielClox how about an intro Daniel,maybe get a better response?

      D Offline
      D Offline
      DanielClox
      wrote on last edited by
      #5

      @oldman Well, wanted to keep it short. But definitely should have mentioned that the bike was stock

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      • CalumC Offline
        CalumC Offline
        Calum
        wrote on last edited by
        #6

        There won't be any gains on the stock engine. Not to my knowledge anyhow.

        The mikuni carb is pretty good.

        Always Originate, Never Pirate!

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        • CalumC Calum

          There won't be any gains on the stock engine. Not to my knowledge anyhow.

          The mikuni carb is pretty good.

          D Offline
          D Offline
          DanielClox
          wrote on last edited by DanielClox
          #7

          @Calum I did not ask if there were going to be performance gains, but thanks for the help, i'll research other options.

          CalumC 1 Reply Last reply
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          • D DanielClox

            @Calum I did not ask if there were going to be performance gains, but thanks for the help, i'll research other options.

            CalumC Offline
            CalumC Offline
            Calum
            wrote on last edited by
            #8

            @DanielClox "Best Bang for Buck" Stick with OEM.

            Why do you need a rebuild kit? What's broken on it?

            My issue will be, you may then comeback and spend hours jetting it. Remember Yamaha spend millions R&D in fueling. And you want to match that as best as possible. Fine if you know what you're doing and have a large budget. But not so great if you're inexperienced and becomes very costly if you get it wrong.

            Always Originate, Never Pirate!

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            • CalumC Calum

              @DanielClox "Best Bang for Buck" Stick with OEM.

              Why do you need a rebuild kit? What's broken on it?

              My issue will be, you may then comeback and spend hours jetting it. Remember Yamaha spend millions R&D in fueling. And you want to match that as best as possible. Fine if you know what you're doing and have a large budget. But not so great if you're inexperienced and becomes very costly if you get it wrong.

              D Offline
              D Offline
              DanielClox
              wrote on last edited by
              #9

              @Calum I don't really know. For starters I need the O-ring, which I know where to get, but I just can't get the carb to work. It was working fine and after not using the bike for 2 weeks everything just went nuts.

              I haven't given up on the carb yet, I was just researching other options and had a question between Polini and OKO quality if I were to buy one of those eventually.

              declanD clawsC 2 Replies Last reply
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              • D DanielClox

                @Calum I don't really know. For starters I need the O-ring, which I know where to get, but I just can't get the carb to work. It was working fine and after not using the bike for 2 weeks everything just went nuts.

                I haven't given up on the carb yet, I was just researching other options and had a question between Polini and OKO quality if I were to buy one of those eventually.

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #10

                @DanielClox rebuild kits are all over eBay

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                • D DanielClox

                  @Calum I don't really know. For starters I need the O-ring, which I know where to get, but I just can't get the carb to work. It was working fine and after not using the bike for 2 weeks everything just went nuts.

                  I haven't given up on the carb yet, I was just researching other options and had a question between Polini and OKO quality if I were to buy one of those eventually.

                  clawsC Offline
                  clawsC Offline
                  claws
                  wrote on last edited by
                  #11

                  @DanielClox i mean if you really want to buy a new carb why not? i bought a 36mm keihin pwk since my stock carb was acting up and stuff. also i would go for the polini

                  2̶0̶0̶4̶ ̶D̶T̶1̶2̶5̶R̶E̶ ̶w̶i̶t̶h̶ ̶s̶u̶p̶e̶r̶m̶o̶t̶o̶ ̶w̶h̶e̶e̶l̶s̶ ̶a̶n̶d̶ ̶a̶ ̶1̶7̶0̶c̶c̶ ̶a̶t̶h̶e̶n̶a̶ ̶k̶i̶t̶
                  1999 YZ250 with a 1999 DTR VIN

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                  • clawsC claws

                    @DanielClox i mean if you really want to buy a new carb why not? i bought a 36mm keihin pwk since my stock carb was acting up and stuff. also i would go for the polini

                    D Offline
                    D Offline
                    DanielClox
                    wrote on last edited by
                    #12

                    @claws exactly my thoughts, why not.
                    I think I managed to get the stock carb to kinda work but I think it would be interesting to get a new carb down the line.

                    I've seen plenty of OKO 30mm working on DTRs so it can't be that hard.

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                    • Glynn123G Offline
                      Glynn123G Offline
                      Glynn123
                      wrote on last edited by
                      #13

                      Ive been off this forum for a good few months now but I went through a lot of tuning with a Polini PWK 32mm on my DTRE. On standard engine it took a lot of jetting and needle changes to find one that worked but when it was done it had a little more torque than stock. I had plans in the pipeline for a new engine build and programmable ignition which is why I changed the carb, my engine was worn out when I tried it at first but it does work and go well, you'll need to adapt your throttle cable. I have now built my new engine up with ignitech ignition and advanced map, carbon reeds etc and it needs rejected but goes very well, unfortunately I haven't had the time or enthusiasm to go on any bikes since spring last year but if I get round to it this year I will finish tuning the DT and write more on here, I have wrote some stuff about the polini carb on here before, I'm not sure if you seen it or not.

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