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DT125R FORUM

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  4. So Close!...

So Close!...

Scheduled Pinned Locked Moved DTR
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  • C Calum
    17 Aug 2022, 19:21

    @SpookDog Well that's good news! I can't get over how many miles you are doing on this thing lol.

    S Offline
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    SpookDog
    wrote on 18 Aug 2022, 16:21 last edited by
    #236

    @Calum

    These things are made to be ridden! I just wish that the saddle didn’t slope down & forwards so much, because anything over 30 miles and it gives my poor old ass a right work over! 😳

    Calum, did you ever sell your original RE forks?...

    C S 2 Replies Last reply 18 Aug 2022, 16:22
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    • S SpookDog
      18 Aug 2022, 16:21

      @Calum

      These things are made to be ridden! I just wish that the saddle didn’t slope down & forwards so much, because anything over 30 miles and it gives my poor old ass a right work over! 😳

      Calum, did you ever sell your original RE forks?...

      C Offline
      C Offline
      Calum
      wrote on 18 Aug 2022, 16:22 last edited by
      #237

      @SpookDog Yup. I have nothing original left of the bike,

      Always Originate, Never Pirate!

      1 Reply Last reply
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      • S SpookDog
        18 Aug 2022, 16:21

        @Calum

        These things are made to be ridden! I just wish that the saddle didn’t slope down & forwards so much, because anything over 30 miles and it gives my poor old ass a right work over! 😳

        Calum, did you ever sell your original RE forks?...

        S Offline
        S Offline
        Stevie Wonder
        wrote on 20 Aug 2022, 11:04 last edited by
        #238

        @SpookDog said in So Close!...:

        @Calum

        These things are made to be ridden! I just wish that the saddle didn’t slope down & forwards so much, because anything over 30 miles and it gives my poor old ass a right work over! 😳

        Calum, did you ever sell your original RE forks?...

        Glad to see someone else say this 😂 I’m 6ft and I always find one my bollocks getting squished and my ass going dead on long rides 😂

        I’m always sliding right forward on the banana seat, I love it but I wouldn’t mind something flatter like the WR200.
        My sperm count would probably appreciate too 😂😂

        S 1 Reply Last reply 20 Aug 2022, 13:53
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        • S Stevie Wonder
          20 Aug 2022, 11:04

          @SpookDog said in So Close!...:

          @Calum

          These things are made to be ridden! I just wish that the saddle didn’t slope down & forwards so much, because anything over 30 miles and it gives my poor old ass a right work over! 😳

          Calum, did you ever sell your original RE forks?...

          Glad to see someone else say this 😂 I’m 6ft and I always find one my bollocks getting squished and my ass going dead on long rides 😂

          I’m always sliding right forward on the banana seat, I love it but I wouldn’t mind something flatter like the WR200.
          My sperm count would probably appreciate too 😂😂

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          SpookDog
          wrote on 20 Aug 2022, 13:53 last edited by
          #239

          @Stevie-Wonder

          Bud! I call it ‘dirt ball’ 😳 it’s a fucking nightmare. It’s on the list to reupholster a new seat. I brought a spare especially. It’s just not a priority atm. You can get silicon seat pads, but I haven’t spotted a good fit yet...

          I’m 5,11 and can’t fold my legs up anymore and still work the gears...

          S 1 Reply Last reply 20 Aug 2022, 19:22
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          • S SpookDog
            20 Aug 2022, 13:53

            @Stevie-Wonder

            Bud! I call it ‘dirt ball’ 😳 it’s a fucking nightmare. It’s on the list to reupholster a new seat. I brought a spare especially. It’s just not a priority atm. You can get silicon seat pads, but I haven’t spotted a good fit yet...

            I’m 5,11 and can’t fold my legs up anymore and still work the gears...

            S Offline
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            SpookDog
            wrote on 20 Aug 2022, 19:22 last edited by SpookDog
            #240

            Re cleaned the carb out last night, paying special attention to the pilot jet. Also I sealed up the hole in the bottom of the casings as well as the seam/join with silicon RTV sealant.
            Took the bike out for a 70 mile ride and it has been very good! Really good ‘resolution’ throughout the Rev range, especially the ‘throttle just cracked’ problem area. I’m not sure if it’s the sealant that has fixed this or the carb. All I know is that I’ve cleaned the carb a lot of times with no results. Even on the jetting I’m on now...
            Looks like a bottom end airleak was causing problems since day one.🥴 ...

            Only thing is it’s taken over 600 miles (of knocking & misfires)to figure this out, and the head gasket has been failing at about 700 miles before! Whatever tho! As long as I fix this eventually I don’t care anymore 😜 ...

            S 1 Reply Last reply 21 Aug 2022, 18:55
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            • S SpookDog
              20 Aug 2022, 19:22

              Re cleaned the carb out last night, paying special attention to the pilot jet. Also I sealed up the hole in the bottom of the casings as well as the seam/join with silicon RTV sealant.
              Took the bike out for a 70 mile ride and it has been very good! Really good ‘resolution’ throughout the Rev range, especially the ‘throttle just cracked’ problem area. I’m not sure if it’s the sealant that has fixed this or the carb. All I know is that I’ve cleaned the carb a lot of times with no results. Even on the jetting I’m on now...
              Looks like a bottom end airleak was causing problems since day one.🥴 ...

              Only thing is it’s taken over 600 miles (of knocking & misfires)to figure this out, and the head gasket has been failing at about 700 miles before! Whatever tho! As long as I fix this eventually I don’t care anymore 😜 ...

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              SpookDog
              wrote on 21 Aug 2022, 18:55 last edited by SpookDog
              #241

              744 miles and still running. Bike is running @ 95%+ still. Descaling the .25 pilot jet that came with the 2nd carb seems to of done the trick, there was a lot of hard deposit inside that wasn’t obvious to (my) naked eye until it was gone. Still think there’s an airleak (small) when hot (bottom end. Not top). That or the mixture screw wants tuning...

              Well happy with results for now. Just worried that 600+ miles of missing &knocking have already taken the toll on the head gasket.

              Right fork seal fixed...

              Edit: I forgot to memo that I stripped & cleaned carb when I bodge tested the rotor side seal. The pilot jet definitely seems to of been the biggest culprit. Can’t believe how long it’s taken to suss out 🎃

              M 1 Reply Last reply 21 Aug 2022, 21:19
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              • S SpookDog
                21 Aug 2022, 18:55

                744 miles and still running. Bike is running @ 95%+ still. Descaling the .25 pilot jet that came with the 2nd carb seems to of done the trick, there was a lot of hard deposit inside that wasn’t obvious to (my) naked eye until it was gone. Still think there’s an airleak (small) when hot (bottom end. Not top). That or the mixture screw wants tuning...

                Well happy with results for now. Just worried that 600+ miles of missing &knocking have already taken the toll on the head gasket.

                Right fork seal fixed...

                Edit: I forgot to memo that I stripped & cleaned carb when I bodge tested the rotor side seal. The pilot jet definitely seems to of been the biggest culprit. Can’t believe how long it’s taken to suss out 🎃

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                markus.w
                wrote on 21 Aug 2022, 21:19 last edited by
                #242

                @SpookDog really mate sealing up the hole under the engine won't help anything.as for your carb, have you removed and cleaned the emulsion tube? There's so much more to cleaning a carb than the jets. What part of the country are you in? Someone on this forum may be able to help you out.

                S 1 Reply Last reply 22 Aug 2022, 16:03
                1
                • M markus.w
                  21 Aug 2022, 21:19

                  @SpookDog really mate sealing up the hole under the engine won't help anything.as for your carb, have you removed and cleaned the emulsion tube? There's so much more to cleaning a carb than the jets. What part of the country are you in? Someone on this forum may be able to help you out.

                  S Offline
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                  SpookDog
                  wrote on 22 Aug 2022, 16:03 last edited by SpookDog
                  #243

                  @markus-w

                  I sealed up the whole underside seam, including the hole. What I know is a casting feature but still has area inside that has access to the crankcase seam. I’m a fool but I’m not that stupid. If you’ve read this thread you’ll see I’ve tried everything to suss this problem and I’m basically crossing t’s & dotting i’s for any possible cause...

                  Yeah I removed and cleaned the emulsion tube as well as making sure the plastic breather pipe and air access to it was unimpeded...

                  M 1 Reply Last reply 22 Aug 2022, 18:25
                  1
                  • S SpookDog
                    22 Aug 2022, 16:03

                    @markus-w

                    I sealed up the whole underside seam, including the hole. What I know is a casting feature but still has area inside that has access to the crankcase seam. I’m a fool but I’m not that stupid. If you’ve read this thread you’ll see I’ve tried everything to suss this problem and I’m basically crossing t’s & dotting i’s for any possible cause...

                    Yeah I removed and cleaned the emulsion tube as well as making sure the plastic breather pipe and air access to it was unimpeded...

                    M Offline
                    M Offline
                    markus.w
                    wrote on 22 Aug 2022, 18:25 last edited by
                    #244

                    @SpookDog I just thought that if it was leaking then you'd surely see evidence of fuel/oil leaking or be able to feel the air by running your hand over it? I have been keeping up with this entire thread and I understand you're trying to eliminate everything. Obviously something somewhere that you're missing and the most annoying part of it, it's probably a stupid little £10 part and 20 minutes work. These type of problems are surely the most frustrating of all.

                    S 1 Reply Last reply 23 Aug 2022, 14:38
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                    • M markus.w
                      22 Aug 2022, 18:25

                      @SpookDog I just thought that if it was leaking then you'd surely see evidence of fuel/oil leaking or be able to feel the air by running your hand over it? I have been keeping up with this entire thread and I understand you're trying to eliminate everything. Obviously something somewhere that you're missing and the most annoying part of it, it's probably a stupid little £10 part and 20 minutes work. These type of problems are surely the most frustrating of all.

                      S Offline
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                      SpookDog
                      wrote on 23 Aug 2022, 14:38 last edited by SpookDog
                      #245

                      @markus-w

                      Sorry bud, I’ve been pulling my hair out for over a year, I do get really frustrated with it sometimes. It’d be a lot easier if it had been running properly at the start, but I haven’t been able to get it properly 100%, Close sometimes, but no cigar 🙂
                      worst thing is I’m usually pretty good at fault diagnosis. Believe it or not! 😜

                      1 Reply Last reply
                      0
                      • S Offline
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                        SpookDog
                        wrote on 24 Aug 2022, 19:15 last edited by
                        #246

                        @880 miles. Slightly worried cause the radiator level has been down slightly the last couple checks, only 5mm but it’s how it starts. And about the right mileage...

                        Still running the same, slight ‘splurble’ at coasting with throttle just cracked. None of the knocking & lurching misfires like before though...

                        Looking like it was a too small pilot jet causing a lean spot misfire has been my problem all along...
                        Can’t believe my luck that I couldn’t find a genuine Mikuni .25 jet for sale outside of the USA! Or that the one in my second (immaculately clean carb I brought recently) carb would be half blocked with hard deposits that I couldn’t see without a magnifying glass! OMFD’s! You have to try and laugh! 😳

                        🤞🤞🤞

                        C M 2 Replies Last reply 24 Aug 2022, 19:17
                        0
                        • S SpookDog
                          24 Aug 2022, 19:15

                          @880 miles. Slightly worried cause the radiator level has been down slightly the last couple checks, only 5mm but it’s how it starts. And about the right mileage...

                          Still running the same, slight ‘splurble’ at coasting with throttle just cracked. None of the knocking & lurching misfires like before though...

                          Looking like it was a too small pilot jet causing a lean spot misfire has been my problem all along...
                          Can’t believe my luck that I couldn’t find a genuine Mikuni .25 jet for sale outside of the USA! Or that the one in my second (immaculately clean carb I brought recently) carb would be half blocked with hard deposits that I couldn’t see without a magnifying glass! OMFD’s! You have to try and laugh! 😳

                          🤞🤞🤞

                          C Offline
                          C Offline
                          Calum
                          wrote on 24 Aug 2022, 19:17 last edited by
                          #247

                          @SpookDog Sounds about right....trying to get genuine jets is an absolute nightmare.

                          Always Originate, Never Pirate!

                          1 Reply Last reply
                          0
                          • S SpookDog
                            24 Aug 2022, 19:15

                            @880 miles. Slightly worried cause the radiator level has been down slightly the last couple checks, only 5mm but it’s how it starts. And about the right mileage...

                            Still running the same, slight ‘splurble’ at coasting with throttle just cracked. None of the knocking & lurching misfires like before though...

                            Looking like it was a too small pilot jet causing a lean spot misfire has been my problem all along...
                            Can’t believe my luck that I couldn’t find a genuine Mikuni .25 jet for sale outside of the USA! Or that the one in my second (immaculately clean carb I brought recently) carb would be half blocked with hard deposits that I couldn’t see without a magnifying glass! OMFD’s! You have to try and laugh! 😳

                            🤞🤞🤞

                            M Offline
                            M Offline
                            markus.w
                            wrote on 24 Aug 2022, 19:30 last edited by markus.w
                            #248

                            @SpookDog https://www.allensperformance.co.uk/
                            Birmingham company for all your carb parts.

                            S H 2 Replies Last reply 24 Aug 2022, 20:47
                            1
                            • M markus.w
                              24 Aug 2022, 19:30

                              @SpookDog https://www.allensperformance.co.uk/
                              Birmingham company for all your carb parts.

                              S Offline
                              S Offline
                              SpookDog
                              wrote on 24 Aug 2022, 20:47 last edited by SpookDog
                              #249

                              @markus-w

                              They don’t have the .25 in stock 😟
                              But thank you! I’ve never found them while searching before 👍 ...

                              S 1 Reply Last reply 25 Aug 2022, 21:41
                              0
                              • S SpookDog
                                24 Aug 2022, 20:47

                                @markus-w

                                They don’t have the .25 in stock 😟
                                But thank you! I’ve never found them while searching before 👍 ...

                                S Offline
                                S Offline
                                SpookDog
                                wrote on 25 Aug 2022, 21:41 last edited by SpookDog
                                #250

                                932miles & counting...

                                Adjusted the air screw and the bike has been running the best ever. Cooling is good...

                                It did spit out a big old cloud of smoke when I went above 7000rpm @ nearing 70mph which speed I never usually do because of the ‘imperfection’ of the motor (it seems to want to run @ the mo’ Like a dog straining at the leash!). I don’t know if it was ‘flushing’ the build up of 2 stroke oil in the bottom of the crank case or something else through the clutch side seal at high speed & revs? Will see with more testing...

                                I really need to find the right way to set up the airscrew & tickover screw from scratch...

                                M 1 Reply Last reply 26 Aug 2022, 06:21
                                0
                                • S SpookDog
                                  25 Aug 2022, 21:41

                                  932miles & counting...

                                  Adjusted the air screw and the bike has been running the best ever. Cooling is good...

                                  It did spit out a big old cloud of smoke when I went above 7000rpm @ nearing 70mph which speed I never usually do because of the ‘imperfection’ of the motor (it seems to want to run @ the mo’ Like a dog straining at the leash!). I don’t know if it was ‘flushing’ the build up of 2 stroke oil in the bottom of the crank case or something else through the clutch side seal at high speed & revs? Will see with more testing...

                                  I really need to find the right way to set up the airscrew & tickover screw from scratch...

                                  M Offline
                                  M Offline
                                  markus.w
                                  wrote on 26 Aug 2022, 06:21 last edited by
                                  #251

                                  @SpookDog https://youtu.be/rCo6dJAxi64

                                  S 1 Reply Last reply 26 Aug 2022, 19:02
                                  0
                                  • M markus.w
                                    26 Aug 2022, 06:21

                                    @SpookDog https://youtu.be/rCo6dJAxi64

                                    S Offline
                                    S Offline
                                    SpookDog
                                    wrote on 26 Aug 2022, 19:02 last edited by SpookDog
                                    #252

                                    972 miles and all is well! Coolant is excellent and holding up to the top top of the radiator, bike is running tip top too 🙂 no misfiring at low throttle...

                                    I’m wondering about the cloud of smoke at ‘highish’ revs at highish speed. I’m wondering about the seal. It can only be unproperly/unburnt fuel, burning 2stroke or burning gearbox oil...
                                    I’m gonna replace (with new original parts) both crank seals as soon as the flywheel side one comes in the post from PJME it’s been a couple weeks which is unusual for them...

                                    D 1 Reply Last reply 27 Aug 2022, 07:23
                                    1
                                    • M markus.w
                                      24 Aug 2022, 19:30

                                      @SpookDog https://www.allensperformance.co.uk/
                                      Birmingham company for all your carb parts.

                                      H Offline
                                      H Offline
                                      HOTSHOT III
                                      wrote on 27 Aug 2022, 06:11 last edited by
                                      #253

                                      @markus-w said in So Close!...:

                                      @SpookDog https://www.allensperformance.co.uk/
                                      Birmingham company for all your carb parts.

                                      Excellent shout @markus-w , I was going to suggest Mikunioz.com but had no idea a UK equivalent exists!

                                      Considering the price and scarcity of OEM DTR TM28SS carbs, a great project for someone with a seized air screw would be to purchase a bog stock TM28SS and powerjet kit from Allens and see if it's possible to get the bike to run as well as (or better than) one with the original carb.

                                      Could open up a whole new chapter in the DTR story!

                                      S 1 Reply Last reply 30 Aug 2022, 19:17
                                      1
                                      • S SpookDog
                                        26 Aug 2022, 19:02

                                        972 miles and all is well! Coolant is excellent and holding up to the top top of the radiator, bike is running tip top too 🙂 no misfiring at low throttle...

                                        I’m wondering about the cloud of smoke at ‘highish’ revs at highish speed. I’m wondering about the seal. It can only be unproperly/unburnt fuel, burning 2stroke or burning gearbox oil...
                                        I’m gonna replace (with new original parts) both crank seals as soon as the flywheel side one comes in the post from PJME it’s been a couple weeks which is unusual for them...

                                        D Offline
                                        D Offline
                                        DTR+NSR
                                        wrote on 27 Aug 2022, 07:23 last edited by
                                        #254

                                        @SpookDog if your splitting the cases, I'd highly recommend using threebond sealant, on the case halves. Think it's 'yamabond1184' that the Yamaha service manual tells you to use, which is threebond1184.

                                        S 1 Reply Last reply 28 Aug 2022, 17:44
                                        1
                                        • D DTR+NSR
                                          27 Aug 2022, 07:23

                                          @SpookDog if your splitting the cases, I'd highly recommend using threebond sealant, on the case halves. Think it's 'yamabond1184' that the Yamaha service manual tells you to use, which is threebond1184.

                                          S Offline
                                          S Offline
                                          SpookDog
                                          wrote on 28 Aug 2022, 17:44 last edited by
                                          #255

                                          @DTR-NSR
                                          Cheers bud, that is really good to know! I want to do it properly this time, after so many mistakes! My learning curve looks like a spring! 😜 ...

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