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DT125R FORUM

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  4. So Close!...

So Close!...

Scheduled Pinned Locked Moved DTR
1.1k Posts 26 Posters 208.1k Views
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  • S SpookDog

    MOT time today! And my bike has decided it’s not gonna rev above 6k anysense! Seems the power valve is sticky/gummed up in the barrel. I’m gonna strip it and clean it after the mot. Does this happen often or just after I started using different 2stroke oil?! 😐

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #282

    @SpookDog I have never had it happen to me in 12 years of ownership.

    Always Originate, Never Pirate!

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    • S SpookDog

      MOT time today! And my bike has decided it’s not gonna rev above 6k anysense! Seems the power valve is sticky/gummed up in the barrel. I’m gonna strip it and clean it after the mot. Does this happen often or just after I started using different 2stroke oil?! 😐

      S Offline
      S Offline
      Scootjockey
      wrote on last edited by
      #283

      @SpookDog
      The servo motor is ok isn’t it ? For the powervalve to be gummed up and it’s not opening is a bit suspect, as the servo can apply quite a bit of force and if it’s not it might on its way out. ? Then again is the battery ok and alternator charging ok ?

      S 1 Reply Last reply
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      • S Scootjockey

        @SpookDog
        The servo motor is ok isn’t it ? For the powervalve to be gummed up and it’s not opening is a bit suspect, as the servo can apply quite a bit of force and if it’s not it might on its way out. ? Then again is the battery ok and alternator charging ok ?

        S Offline
        S Offline
        SpookDog
        wrote on last edited by
        #284

        @Scootjockey

        It was proper sticky with black crud. Cleaned it up with some degreasant. I’ll have to keep my eye on it in the near future...

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        • S SpookDog

          @Scootjockey

          It was proper sticky with black crud. Cleaned it up with some degreasant. I’ll have to keep my eye on it in the near future...

          S Offline
          S Offline
          Scootjockey
          wrote on last edited by
          #285

          @SpookDog
          I’d imagine that was due to carbon build up and the change in oil, just goes to show 2 strokes are fickle things and need regular TLC to be kept up to speed

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          • S Scootjockey

            @SpookDog
            I’d imagine that was due to carbon build up and the change in oil, just goes to show 2 strokes are fickle things and need regular TLC to be kept up to speed

            S Offline
            S Offline
            SpookDog
            wrote on last edited by
            #286

            @Scootjockey
            Yeah. The engine seems to run fine (even good!) with the 2T synthetic oil I’ve been using. It’s only the power valve that’s suffering. Also I wasn’t sent the Oil I was expecting, I ended up with ‘Smith Alan’. I didn’t take any notice of the packaging, just that it was synthetic and approved. My embarrassing fuckup!...
            I’m going back to Castrol for the foreseeable future...

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            • S SpookDog

              @Scootjockey
              Yeah. The engine seems to run fine (even good!) with the 2T synthetic oil I’ve been using. It’s only the power valve that’s suffering. Also I wasn’t sent the Oil I was expecting, I ended up with ‘Smith Alan’. I didn’t take any notice of the packaging, just that it was synthetic and approved. My embarrassing fuckup!...
              I’m going back to Castrol for the foreseeable future...

              S Offline
              S Offline
              SpookDog
              wrote on last edited by
              #287

              The power valve started sticking again a day after. I switched back to castrol R1 and it has cleared up nicely...

              The bike itself ran fine with the oil, it was just the power valve was gumming up with a thick, sticky varnish. Not power valve friendly! I still want to try Exol oil at some point...

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              • CalumC Calum

                @SpookDog The bleed nipple should be backed off when retracting the pistons, you risk damaging something otherwise.

                On cars, with solid brake lines, the bleed nipple should be backed off else risking rupting a solid line.

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #288

                @Calum i once cracked a caliper not loosening the master cylinder cap not my finest moment

                S 1 Reply Last reply
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                • declanD declan

                  @Calum i once cracked a caliper not loosening the master cylinder cap not my finest moment

                  S Offline
                  S Offline
                  SpookDog
                  wrote on last edited by
                  #289

                  Stripped and replaced the clutch side main oil seal. It looked fine, but on removal there was gear oil on the bottom of the main bearing. Brown, not red...

                  Bike definitely feels different as well. The tick over has altered so I’m gonna have to tweak the airscrew, which I don’t think I’m very good at 🙄 The revs seem to pick up much ‘cleaner’ as well...

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                  • S SpookDog

                    Stripped and replaced the clutch side main oil seal. It looked fine, but on removal there was gear oil on the bottom of the main bearing. Brown, not red...

                    Bike definitely feels different as well. The tick over has altered so I’m gonna have to tweak the airscrew, which I don’t think I’m very good at 🙄 The revs seem to pick up much ‘cleaner’ as well...

                    S Offline
                    S Offline
                    SpookDog
                    wrote on last edited by
                    #290

                    Also replaced the EBC uprated clutch springs with the original ones, the clutch is as light as a feather!. Downshifting is a lot less clunky since I adjusted the basket/pressure plate 👍 ...

                    Also my progressive springs have finally arrived and been posted! I really want a second hand set of forks to use either for the upgrade, or to use while the others are stripped for powder coating, ect...

                    CalumC 1 Reply Last reply
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                    • S SpookDog

                      Also replaced the EBC uprated clutch springs with the original ones, the clutch is as light as a feather!. Downshifting is a lot less clunky since I adjusted the basket/pressure plate 👍 ...

                      Also my progressive springs have finally arrived and been posted! I really want a second hand set of forks to use either for the upgrade, or to use while the others are stripped for powder coating, ect...

                      CalumC Offline
                      CalumC Offline
                      Calum
                      wrote on last edited by
                      #291

                      @SpookDog Oh awesome, I run the EBC Springs and after a short while of riding I don't bother with the clutch, just let off the throttle.

                      The problem I was worried about was once you start increasing the vehicles power you may run into clutch troubles. But total overkill for stock systems.

                      Always Originate, Never Pirate!

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                      • CalumC Calum

                        @SpookDog Oh awesome, I run the EBC Springs and after a short while of riding I don't bother with the clutch, just let off the throttle.

                        The problem I was worried about was once you start increasing the vehicles power you may run into clutch troubles. But total overkill for stock systems.

                        S Offline
                        S Offline
                        SpookDog
                        wrote on last edited by
                        #292

                        @Calum
                        My thinking was that an unrestricted motor might need uprated springs, but it seems absolutely fine with standard springs...

                        The HyperPro springs actually look like a top knotch product. I was a bit dubious at first, like I am with any fleabay listing, but they come with copious instructions, fork oil & fork grease for the bottom of the stantions that sit in the lower legs. Plus they are properly well packaged...
                        Made in 🇳🇱 Holland for 89 ~ 06 model Dtr/e’s, which was one of my worries 😜 ...

                        S 1 Reply Last reply
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                        • S SpookDog

                          @Calum
                          My thinking was that an unrestricted motor might need uprated springs, but it seems absolutely fine with standard springs...

                          The HyperPro springs actually look like a top knotch product. I was a bit dubious at first, like I am with any fleabay listing, but they come with copious instructions, fork oil & fork grease for the bottom of the stantions that sit in the lower legs. Plus they are properly well packaged...
                          Made in 🇳🇱 Holland for 89 ~ 06 model Dtr/e’s, which was one of my worries 😜 ...

                          S Offline
                          S Offline
                          SpookDog
                          wrote on last edited by SpookDog
                          #293

                          Still haven’t fitted the new top & bottom bushes, new seals and progressive springs to the forks yet. I want to buy a used pair of forks to renovate and powder coat without taking my bike off the road...
                          Still waiting for Henrique Romeu to post my exhaust as well...
                          Waiting for some money to buy a new front tyre (Kenda 90-90 21in) to match the new rear 4.00 18 I already have brought...

                          My mongrel bike is still running really well at the moment, no head gasket issues 👍🤪 as soon as I get financially viable I’m gonna get a PJME rebore and maybe an oring conversion to the barrel. I am also going to rebuild another bottom end with new bearings all through. I have genuine crank seals, and am gonna get all koyo bearings with the best quality oil seals I can get for the rest of the bottom end. I’ve sourced another good condition crank (that I may get rebuilt with bearings and con rod if money willing)...
                          Swing arm and linkage bearings are all holding up since I replaced them 2 years ago, but I do want to replace them with koyo bearings and quality (if genuine seals can’t be found) seals because I got them from fleabay when I did the overhaul when I first got my basket case 🥴
                          I will get my shit together eventually 👻🐾🐾

                          S 1 Reply Last reply
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                          • S SpookDog

                            Still haven’t fitted the new top & bottom bushes, new seals and progressive springs to the forks yet. I want to buy a used pair of forks to renovate and powder coat without taking my bike off the road...
                            Still waiting for Henrique Romeu to post my exhaust as well...
                            Waiting for some money to buy a new front tyre (Kenda 90-90 21in) to match the new rear 4.00 18 I already have brought...

                            My mongrel bike is still running really well at the moment, no head gasket issues 👍🤪 as soon as I get financially viable I’m gonna get a PJME rebore and maybe an oring conversion to the barrel. I am also going to rebuild another bottom end with new bearings all through. I have genuine crank seals, and am gonna get all koyo bearings with the best quality oil seals I can get for the rest of the bottom end. I’ve sourced another good condition crank (that I may get rebuilt with bearings and con rod if money willing)...
                            Swing arm and linkage bearings are all holding up since I replaced them 2 years ago, but I do want to replace them with koyo bearings and quality (if genuine seals can’t be found) seals because I got them from fleabay when I did the overhaul when I first got my basket case 🥴
                            I will get my shit together eventually 👻🐾🐾

                            S Offline
                            S Offline
                            SpookDog
                            wrote on last edited by
                            #294

                            Wish Me Luck

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                            • Stevie WonderS Offline
                              Stevie WonderS Offline
                              Stevie Wonder
                              wrote on last edited by
                              #295

                              Best of luck! I’m looking forward to hearing a detailed explanation of how that Romeu pipe performs, I’ve been tempted myself and he’ll also do you a custom pipe spec’d for a WR200 with DTR mounts.

                              Also those kenda tyres are based of an old Dunlop design that would’ve originally come on some model DTR’s. They are highly regarded and going to be my next purchase for my other bike. I’ve not seen a better road / trail tire yet. Only a few contenders like the pirelli mt21’s or Dunlop d952’s

                              S 1 Reply Last reply
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                              • Stevie WonderS Stevie Wonder

                                Best of luck! I’m looking forward to hearing a detailed explanation of how that Romeu pipe performs, I’ve been tempted myself and he’ll also do you a custom pipe spec’d for a WR200 with DTR mounts.

                                Also those kenda tyres are based of an old Dunlop design that would’ve originally come on some model DTR’s. They are highly regarded and going to be my next purchase for my other bike. I’ve not seen a better road / trail tire yet. Only a few contenders like the pirelli mt21’s or Dunlop d952’s

                                S Offline
                                S Offline
                                SpookDog
                                wrote on last edited by SpookDog
                                #296

                                @Stevie-Wonder

                                I’ll let you know when I get the pipe, with pics!...

                                I put Pirelli MT something (24?!) ‘rally cross’ tyres originally on my bike. They were total shite in my opinion! I don’t say that lightly, they were really uncomfortable on the road. It was like riding a pneumatic road drill 🤨 I had absolutely no confidence cornering with them on road. In fairness I think they were truly 50~50 orientated, so were to specific for my use. Also the rubber was a lot harder than the Kenda tyres I’ve gone through...

                                S 1 Reply Last reply
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                                • S SpookDog

                                  @Stevie-Wonder

                                  I’ll let you know when I get the pipe, with pics!...

                                  I put Pirelli MT something (24?!) ‘rally cross’ tyres originally on my bike. They were total shite in my opinion! I don’t say that lightly, they were really uncomfortable on the road. It was like riding a pneumatic road drill 🤨 I had absolutely no confidence cornering with them on road. In fairness I think they were truly 50~50 orientated, so were to specific for my use. Also the rubber was a lot harder than the Kenda tyres I’ve gone through...

                                  S Offline
                                  S Offline
                                  SpookDog
                                  wrote on last edited by
                                  #297

                                  Bollox! My rev count cable has broken! Can anyone point me towards a good replacement?...

                                  S 1 Reply Last reply
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                                  • S SpookDog

                                    Bollox! My rev count cable has broken! Can anyone point me towards a good replacement?...

                                    S Offline
                                    S Offline
                                    Scootjockey
                                    wrote on last edited by
                                    #298

                                    @SpookDog
                                    Anything on eBay cheap n cheerful, IMO. That goes for the speedo cable as well, As long as you oil them they should last as long as ye brake pads.

                                    S 1 Reply Last reply
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                                    • S Scootjockey

                                      @SpookDog
                                      Anything on eBay cheap n cheerful, IMO. That goes for the speedo cable as well, As long as you oil them they should last as long as ye brake pads.

                                      S Offline
                                      S Offline
                                      SpookDog
                                      wrote on last edited by
                                      #299

                                      Gutted! Finally found a set of forks complete with yokes and spindle on fleabay for a decent price £50 + 20 postage! And the bloke ‘won’t receive bids or offers’ from me! Meaning I can’t ‘buy it now’ even! 🤨
                                      Only to me 😐 ...

                                      markus.wM 1 Reply Last reply
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                                      • S SpookDog

                                        Gutted! Finally found a set of forks complete with yokes and spindle on fleabay for a decent price £50 + 20 postage! And the bloke ‘won’t receive bids or offers’ from me! Meaning I can’t ‘buy it now’ even! 🤨
                                        Only to me 😐 ...

                                        markus.wM Offline
                                        markus.wM Offline
                                        markus.w
                                        wrote on last edited by
                                        #300

                                        @SpookDog a lot of sellers only accept bids off buyers with good feedback. If you message him first he may sort it for you.

                                        S 2 Replies Last reply
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                                        • markus.wM markus.w

                                          @SpookDog a lot of sellers only accept bids off buyers with good feedback. If you message him first he may sort it for you.

                                          S Offline
                                          S Offline
                                          SpookDog
                                          wrote on last edited by
                                          #301

                                          @markus-w

                                          I’ve got 100% feedback from a few hundred deals. I’m stumped...

                                          1 Reply Last reply
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