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DT125R FORUM

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  4. The Helios Project (Aprilia RS 125 Rotax 122 Biaggi Race Replica)

The Helios Project (Aprilia RS 125 Rotax 122 Biaggi Race Replica)

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  • CalumC Calum

    @declan Direct from China, like alibaba style.

    alt text

    Engine built, I will clean the carb tomorrow to make it spanking.

    Titanium bolts mount the intake to the engine. Along with my powdercoated skull cap, which should contrast nicely with my NGK racing coil and HT Lead, along with the red engine mount.

    Just awaiting on some carbon from America, my on going Hydraulic clutch conversion, then this engine is ready to rock and roll.

    And for those interested in the hydraulic clutch conversion, it would appear, after much discussions with far more qualified engineers, that the solution the other chap derrived is not adequate.

    I will explain in a separate thread, but basically it's gone from being very easy, to needing a bit more thought...but more on that when it's finished.

    NINJAN Offline
    NINJAN Offline
    NINJA
    wrote on last edited by
    #139

    @calum A multi coloured engine - unusually sweet! VHSB 34mm carb is it? And did your carb come with that top cap or did you source it from somewhere???

    SEDUCED BY THE DARK SIDE!!!

    CalumC 1 Reply Last reply
    0
    • NINJAN NINJA

      @calum A multi coloured engine - unusually sweet! VHSB 34mm carb is it? And did your carb come with that top cap or did you source it from somewhere???

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #140

      @NINJA It's the racing version of the VHSB carb.

      alt text

      It's like an extra £100.

      Always Originate, Never Pirate!

      NINJAN 1 Reply Last reply
      0
      • CalumC Calum

        @NINJA It's the racing version of the VHSB carb.

        alt text

        It's like an extra £100.

        NINJAN Offline
        NINJAN Offline
        NINJA
        wrote on last edited by NINJA
        #141

        @calum COOL I bought a job lot of parts for my MX and there was a 34mm Dellorto in there. It's a VHSB model but needs a good clean and a new top cap, as the plastic one's damaged. Those alloy caps are cool looking but cost £55 new. I think it's the flat sided version, but will need to dig it out and check.

        SEDUCED BY THE DARK SIDE!!!

        CalumC 1 Reply Last reply
        0
        • NINJAN NINJA

          @calum COOL I bought a job lot of parts for my MX and there was a 34mm Dellorto in there. It's a VHSB model but needs a good clean and a new top cap, as the plastic one's damaged. Those alloy caps are cool looking but cost £55 new. I think it's the flat sided version, but will need to dig it out and check.

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #142

          @ninja Yeah the VHSB is flat slide. This has some other revisions to the stock VHSB.

          Always Originate, Never Pirate!

          NINJAN 1 Reply Last reply
          0
          • CalumC Calum

            @ninja Yeah the VHSB is flat slide. This has some other revisions to the stock VHSB.

            NINJAN Offline
            NINJAN Offline
            NINJA
            wrote on last edited by
            #143

            @calum Yeah I was checking out the differences on here;

            https://www.dellorto.co.uk/product-category/complete-carburettors-dellorto-motorcycle-carburettors-parts/

            SEDUCED BY THE DARK SIDE!!!

            1 Reply Last reply
            1
            • J Offline
              J Offline
              Jens Eskildsen
              wrote on last edited by
              #144

              Cant wait to hear it sing :smiling_face:

              CalumC 1 Reply Last reply
              0
              • J Jens Eskildsen

                Cant wait to hear it sing :smiling_face:

                CalumC Offline
                CalumC Offline
                Calum
                wrote on last edited by
                #145

                @jens-eskildsen You and me both, but we're a fair bit from that just yet.

                Always Originate, Never Pirate!

                1 Reply Last reply
                0
                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by Calum
                  #146

                  I must say, I'm pretty disappointed with the casting flaws on this fairly premium carburettor.

                  Having properly examined this carb today, I've cleaned it up and noticed pretty bad flaws in the inlet tract.

                  alt text

                  I didn't take any photos, but see the flaws on the outside, imagine those all on the intake.

                  alt text

                  I read that polishing the inlet doesn't do anything (Graham Bell Two Stroke Performance Tuning), but he goes on to say, it definitely doesn't hurt.

                  alt text

                  I lack the motivation, skill or time to do this job properly.

                  But I did remove the flaws, which I'm pleased about. Gave the carb a decent clean and it's ready to join my engine.

                  @NINJA What's the casting like on your VHSB?

                  On my DT I run a VHSA, which was sold to me as "Blue Printed" So I quickly sold the one I already had and like a child bought that one. But to be fair, having seen the condition of this one, maybe the one I got on my DT was reworked.

                  Always Originate, Never Pirate!

                  NINJAN 1 Reply Last reply
                  0
                  • CalumC Calum

                    I must say, I'm pretty disappointed with the casting flaws on this fairly premium carburettor.

                    Having properly examined this carb today, I've cleaned it up and noticed pretty bad flaws in the inlet tract.

                    alt text

                    I didn't take any photos, but see the flaws on the outside, imagine those all on the intake.

                    alt text

                    I read that polishing the inlet doesn't do anything (Graham Bell Two Stroke Performance Tuning), but he goes on to say, it definitely doesn't hurt.

                    alt text

                    I lack the motivation, skill or time to do this job properly.

                    But I did remove the flaws, which I'm pleased about. Gave the carb a decent clean and it's ready to join my engine.

                    @NINJA What's the casting like on your VHSB?

                    On my DT I run a VHSA, which was sold to me as "Blue Printed" So I quickly sold the one I already had and like a child bought that one. But to be fair, having seen the condition of this one, maybe the one I got on my DT was reworked.

                    NINJAN Offline
                    NINJAN Offline
                    NINJA
                    wrote on last edited by
                    #147

                    @calum I'll dig mine out and post some pics for ya, have to be on Sunday tho, as I'm out all day tomorrow.

                    SEDUCED BY THE DARK SIDE!!!

                    CalumC 1 Reply Last reply
                    0
                    • NINJAN NINJA

                      @calum I'll dig mine out and post some pics for ya, have to be on Sunday tho, as I'm out all day tomorrow.

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #148

                      @ninja Let down!

                      Always Originate, Never Pirate!

                      declanD 1 Reply Last reply
                      0
                      • CalumC Calum

                        @ninja Let down!

                        declanD Offline
                        declanD Offline
                        declan
                        wrote on last edited by declan
                        #149

                        @calum you are right though at first I was like wtf is this guy on about them I realised the price of the unit and I noticed the bad bits for the price I’d expect a way better finish on the metal are you sure it’s not a Knock off don’t mean to be a dick but it happens but I’m guessing you brought from pjs? I just realised it was not brand new you did a good job at cleaning lol.

                        CalumC 1 Reply Last reply
                        0
                        • declanD declan

                          @calum you are right though at first I was like wtf is this guy on about them I realised the price of the unit and I noticed the bad bits for the price I’d expect a way better finish on the metal are you sure it’s not a Knock off don’t mean to be a dick but it happens but I’m guessing you brought from pjs? I just realised it was not brand new you did a good job at cleaning lol.

                          CalumC Offline
                          CalumC Offline
                          Calum
                          wrote on last edited by
                          #150

                          @declan Yeah, it's stamped in the side as a VHSBLD which is what I wanted.

                          The thought crossed my mind.

                          To be honest with you, I can tell the carb is legit, I'm just surprised how bad the casting is.

                          This is the bike it came off.

                          alt text

                          As you can tell, it looks to have been tracked.

                          More importantly though, that body kit is on eBay.

                          It's a one of a kind, complete Carbon Fibre fairing kit.

                          You can't buy those, that's been specially made.

                          If you got the money for that, you got the money for legitimate carbs.

                          So no, I don't think it's a fake.

                          Now, that said, I don't actually like that body kit. But still impressive.

                          Always Originate, Never Pirate!

                          NINJAN declanD 3 Replies Last reply
                          0
                          • CalumC Calum

                            @declan Yeah, it's stamped in the side as a VHSBLD which is what I wanted.

                            The thought crossed my mind.

                            To be honest with you, I can tell the carb is legit, I'm just surprised how bad the casting is.

                            This is the bike it came off.

                            alt text

                            As you can tell, it looks to have been tracked.

                            More importantly though, that body kit is on eBay.

                            It's a one of a kind, complete Carbon Fibre fairing kit.

                            You can't buy those, that's been specially made.

                            If you got the money for that, you got the money for legitimate carbs.

                            So no, I don't think it's a fake.

                            Now, that said, I don't actually like that body kit. But still impressive.

                            NINJAN Offline
                            NINJAN Offline
                            NINJA
                            wrote on last edited by
                            #151

                            @calum I actually like that kit, it would look much better cleaned up, as stated in the listing. Cost £800 new and he wants £500 for it now, that's some serious cash for a kit, but as a one off it could look really amazing. I would add some tasteful decals to give it some colour here and there, but other than that she looks damn sweet.

                            Mine is also a VHSB LD carb, I may have a bit of time in the morning to take a couple of pics. Dellorto carbs are all made in Italy I believe, so there quality may not be as good as other countries???

                            SEDUCED BY THE DARK SIDE!!!

                            1 Reply Last reply
                            1
                            • CalumC Calum

                              @declan Yeah, it's stamped in the side as a VHSBLD which is what I wanted.

                              The thought crossed my mind.

                              To be honest with you, I can tell the carb is legit, I'm just surprised how bad the casting is.

                              This is the bike it came off.

                              alt text

                              As you can tell, it looks to have been tracked.

                              More importantly though, that body kit is on eBay.

                              It's a one of a kind, complete Carbon Fibre fairing kit.

                              You can't buy those, that's been specially made.

                              If you got the money for that, you got the money for legitimate carbs.

                              So no, I don't think it's a fake.

                              Now, that said, I don't actually like that body kit. But still impressive.

                              NINJAN Offline
                              NINJAN Offline
                              NINJA
                              wrote on last edited by NINJA
                              #152

                              @calum Here's my Dellorto, not a great deal of difference between em;

                              0_1526123581910_IMG_1861.JPG

                              0_1526123594773_IMG_1862.JPG

                              0_1526123619822_IMG_1864.JPG

                              0_1526123631510_IMG_1865.JPG

                              0_1526123645338_IMG_1866.JPG

                              0_1526123655308_IMG_1867.JPG

                              SEDUCED BY THE DARK SIDE!!!

                              1 Reply Last reply
                              1
                              • CalumC Calum

                                @declan Yeah, it's stamped in the side as a VHSBLD which is what I wanted.

                                The thought crossed my mind.

                                To be honest with you, I can tell the carb is legit, I'm just surprised how bad the casting is.

                                This is the bike it came off.

                                alt text

                                As you can tell, it looks to have been tracked.

                                More importantly though, that body kit is on eBay.

                                It's a one of a kind, complete Carbon Fibre fairing kit.

                                You can't buy those, that's been specially made.

                                If you got the money for that, you got the money for legitimate carbs.

                                So no, I don't think it's a fake.

                                Now, that said, I don't actually like that body kit. But still impressive.

                                declanD Offline
                                declanD Offline
                                declan
                                wrote on last edited by
                                #153

                                @calum that’s a nice bike I personally like the kit Is there any tracks near you I did watch a video a while back of you track riding a yz 125 unless I’ve made that up lol

                                CalumC 1 Reply Last reply
                                1
                                • declanD declan

                                  @calum that’s a nice bike I personally like the kit Is there any tracks near you I did watch a video a while back of you track riding a yz 125 unless I’ve made that up lol

                                  CalumC Offline
                                  CalumC Offline
                                  Calum
                                  wrote on last edited by
                                  #154

                                  @declan Castle Combe is the closest track to me.

                                  @NINJA Yeah, the casting on yours looks better than what mine was. I have sorted the flaws out, but still don't expect that for the money.

                                  Always Originate, Never Pirate!

                                  declanD NINJAN 2 Replies Last reply
                                  0
                                  • CalumC Calum

                                    @declan Castle Combe is the closest track to me.

                                    @NINJA Yeah, the casting on yours looks better than what mine was. I have sorted the flaws out, but still don't expect that for the money.

                                    declanD Offline
                                    declanD Offline
                                    declan
                                    wrote on last edited by
                                    #155

                                    @calum is that an mx track? What I was asking in an awkward way was will you be taking yours to a race track

                                    CalumC 1 Reply Last reply
                                    0
                                    • declanD declan

                                      @calum is that an mx track? What I was asking in an awkward way was will you be taking yours to a race track

                                      CalumC Offline
                                      CalumC Offline
                                      Calum
                                      wrote on last edited by
                                      #156

                                      @declan castle combe is a road track, probably too big for a 125.

                                      To be honest mate, this isn't the sort of bike I will really ride. It's more about the buikld than anything else.

                                      Always Originate, Never Pirate!

                                      1 Reply Last reply
                                      0
                                      • CalumC Calum

                                        @declan Castle Combe is the closest track to me.

                                        @NINJA Yeah, the casting on yours looks better than what mine was. I have sorted the flaws out, but still don't expect that for the money.

                                        NINJAN Offline
                                        NINJAN Offline
                                        NINJA
                                        wrote on last edited by
                                        #157

                                        @calum You bought it used yeah? Sadly the luxury of returning stuff goes out the window when your not the OG buyer. All part of the risk with secondhand parts. Judging from the photo's on the ebay listing, the previous owner was not a details man and just ragged the bike. As it looks well used in those pics, but hey-ho you roll the dice and take pot luck I guess? Mine will hopefully clean up good and with a trumpet polish and new top cap she should be good-to-go!!! 😉

                                        SEDUCED BY THE DARK SIDE!!!

                                        CalumC 1 Reply Last reply
                                        0
                                        • NINJAN NINJA

                                          @calum You bought it used yeah? Sadly the luxury of returning stuff goes out the window when your not the OG buyer. All part of the risk with secondhand parts. Judging from the photo's on the ebay listing, the previous owner was not a details man and just ragged the bike. As it looks well used in those pics, but hey-ho you roll the dice and take pot luck I guess? Mine will hopefully clean up good and with a trumpet polish and new top cap she should be good-to-go!!! 😉

                                          CalumC Offline
                                          CalumC Offline
                                          Calum
                                          wrote on last edited by
                                          #158

                                          @ninja Shit, I ain't complaining. The imperfections have been buffered out. The carb has been shot blasted, stripped and renewed. It's in sweet condition now. Just I was surprised that there were so many flaws.

                                          Always Originate, Never Pirate!

                                          NINJAN 1 Reply Last reply
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