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DTR Build Up

Scheduled Pinned Locked Moved DTR
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  • ConnorDTRC Offline
    ConnorDTRC Offline
    ConnorDTR
    wrote on last edited by
    #81

    So finally caught that bike bug again, always had a hit and miss relationship with this bike the fact that it keeps breaking down. I think i have found my reason why, everytime i take my piston out it is a four point seizure, this indicates running lean. I thought that skimming my head would rectify this as i originally thought it was an overheating issue. However upon closer inspection it is still running lean, i believe some of this is to do with my oil pump. I've got it set all the way in the junction box to the carb, so my oil pump is already damn near full wack at idle. Which is why i eat through a litre of oil in about 2-250 miles and why it breaks, apparently too much oil can upset the Air to fuel ratio causing a lean condition.

    So still on a full engine rebuild i've gotten to work, today i got the engine out of the bike and i've fallen in love with working on this thing. Everything is so simple and easy to get to and all using conventional sizes. So in just an hour and a half i've had the bike from completely together to stripped apart with the engine out. Whilst it is off the road i'm going to respray the tank as it has rust holes everywhere that need filling and tank needs respraying.
    http://i.imgur.com/LBAV798.jpg?1
    http://i.imgur.com/oNIVAJE.jpg?1
    http://i.imgur.com/hwhiJUC.jpg?1
    Not a bad transformation, so cute how small this engine really is. That's my days work done today, was going to sand down the tank and get it primered tomorrow but i'm off with my brother to view a car. Need to order an impact driver so i can take the stock screws out and then with it apart i'm going to clean and paint the engine! Atleast this is what i hope to do, also going to go a jet larger in the main aswell as get the right throttle cable

    CalumC Biker_123B 2 Replies Last reply
    1
    • ConnorDTRC ConnorDTR

      So finally caught that bike bug again, always had a hit and miss relationship with this bike the fact that it keeps breaking down. I think i have found my reason why, everytime i take my piston out it is a four point seizure, this indicates running lean. I thought that skimming my head would rectify this as i originally thought it was an overheating issue. However upon closer inspection it is still running lean, i believe some of this is to do with my oil pump. I've got it set all the way in the junction box to the carb, so my oil pump is already damn near full wack at idle. Which is why i eat through a litre of oil in about 2-250 miles and why it breaks, apparently too much oil can upset the Air to fuel ratio causing a lean condition.

      So still on a full engine rebuild i've gotten to work, today i got the engine out of the bike and i've fallen in love with working on this thing. Everything is so simple and easy to get to and all using conventional sizes. So in just an hour and a half i've had the bike from completely together to stripped apart with the engine out. Whilst it is off the road i'm going to respray the tank as it has rust holes everywhere that need filling and tank needs respraying.
      http://i.imgur.com/LBAV798.jpg?1
      http://i.imgur.com/oNIVAJE.jpg?1
      http://i.imgur.com/hwhiJUC.jpg?1
      Not a bad transformation, so cute how small this engine really is. That's my days work done today, was going to sand down the tank and get it primered tomorrow but i'm off with my brother to view a car. Need to order an impact driver so i can take the stock screws out and then with it apart i'm going to clean and paint the engine! Atleast this is what i hope to do, also going to go a jet larger in the main aswell as get the right throttle cable

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #82

      @ConnorDTR Nice maN. Bike is looking good. Shame about the motor. Any problems be sure to throw them up. These enines are very simple.

      Always Originate, Never Pirate!

      1 Reply Last reply
      0
      • ConnorDTRC ConnorDTR

        So finally caught that bike bug again, always had a hit and miss relationship with this bike the fact that it keeps breaking down. I think i have found my reason why, everytime i take my piston out it is a four point seizure, this indicates running lean. I thought that skimming my head would rectify this as i originally thought it was an overheating issue. However upon closer inspection it is still running lean, i believe some of this is to do with my oil pump. I've got it set all the way in the junction box to the carb, so my oil pump is already damn near full wack at idle. Which is why i eat through a litre of oil in about 2-250 miles and why it breaks, apparently too much oil can upset the Air to fuel ratio causing a lean condition.

        So still on a full engine rebuild i've gotten to work, today i got the engine out of the bike and i've fallen in love with working on this thing. Everything is so simple and easy to get to and all using conventional sizes. So in just an hour and a half i've had the bike from completely together to stripped apart with the engine out. Whilst it is off the road i'm going to respray the tank as it has rust holes everywhere that need filling and tank needs respraying.
        http://i.imgur.com/LBAV798.jpg?1
        http://i.imgur.com/oNIVAJE.jpg?1
        http://i.imgur.com/hwhiJUC.jpg?1
        Not a bad transformation, so cute how small this engine really is. That's my days work done today, was going to sand down the tank and get it primered tomorrow but i'm off with my brother to view a car. Need to order an impact driver so i can take the stock screws out and then with it apart i'm going to clean and paint the engine! Atleast this is what i hope to do, also going to go a jet larger in the main aswell as get the right throttle cable

        Biker_123B Offline
        Biker_123B Offline
        Biker_123
        wrote on last edited by
        #83

        @ConnorDTR Glad to see your keeping the bike mate 👍🏻 Im still loving the colours of this bike makes it stand out such a lovely build

        Every problem has a solution

        ConnorDTRC 1 Reply Last reply
        0
        • jimmydc98J Offline
          jimmydc98J Offline
          jimmydc98
          wrote on last edited by
          #84

          how much have you spent so far

          DT200WR 1997 - New Project
          DTR 125 1997 - The Bike That Got Stolen
          DTR 125 2002 - Project
          DT 125 LC 1986 - Old Bike

          1 Reply Last reply
          0
          • Biker_123B Biker_123

            @ConnorDTR Glad to see your keeping the bike mate 👍🏻 Im still loving the colours of this bike makes it stand out such a lovely build

            ConnorDTRC Offline
            ConnorDTRC Offline
            ConnorDTR
            wrote on last edited by
            #85

            @Biker_123 well i couldn't get rid of it, too much work for what i would get back from selling, it's a project after all it's supposed to break and need fixing! That and my student loan turns out more than i expected and i'll be keeping my job every other weekend when i'm at uni. The bike looks tatty as anything i reckon, the plastics are all stained and it's way too plain, i'm feeling some stickers when everything is sorted, make it stand out a bit more.
            @Calum Will do, nowhere i could think of where i can get any better advice. There's a complete strip down video on youtube which i must have watched about 10 times by now aswell!

            @jimmydc98 God knows, wouldn't like to know either. Too much

            Biker_123B 1 Reply Last reply
            0
            • ConnorDTRC ConnorDTR

              @Biker_123 well i couldn't get rid of it, too much work for what i would get back from selling, it's a project after all it's supposed to break and need fixing! That and my student loan turns out more than i expected and i'll be keeping my job every other weekend when i'm at uni. The bike looks tatty as anything i reckon, the plastics are all stained and it's way too plain, i'm feeling some stickers when everything is sorted, make it stand out a bit more.
              @Calum Will do, nowhere i could think of where i can get any better advice. There's a complete strip down video on youtube which i must have watched about 10 times by now aswell!

              @jimmydc98 God knows, wouldn't like to know either. Too much

              Biker_123B Offline
              Biker_123B Offline
              Biker_123
              wrote on last edited by
              #86

              @ConnorDTR Have you decided if your keeping it trail or going SM with it mate once it's up and running again? Yeah some graphics would set it off although its still a good looking bike as it is in my opinion.

              Every problem has a solution

              ConnorDTRC 1 Reply Last reply
              1
              • Biker_123B Biker_123

                @ConnorDTR Have you decided if your keeping it trail or going SM with it mate once it's up and running again? Yeah some graphics would set it off although its still a good looking bike as it is in my opinion.

                ConnorDTRC Offline
                ConnorDTRC Offline
                ConnorDTR
                wrote on last edited by
                #87

                @Biker_123 Definitely supermoto, i never go off the road really as there isn't anywhere decent round here and i prefer to get the bike over on a nice road! Thanks dude, but it's too plain for me at the moment. But i've got more important things to fix than aesthetics first

                1 Reply Last reply
                1
                • ConnorDTRC Offline
                  ConnorDTRC Offline
                  ConnorDTR
                  wrote on last edited by ConnorDTR
                  #88

                  Well she's up and running again, I stripped my engine completely and split the crankcases.
                  http://i.imgur.com/hwhiJUC.jpg?2
                  http://i.imgur.com/9HYlAnw.jpg?1
                  Then looked on ebay and found a running engine for £250 plus delivery. So i've bought that and installed it back into the bike. It's from a later 4bl bike and i've found that you can use the later stator with the early style wiring loom and cdi. Just have to change the connectors over! Only thing i'm having trouble with is my speedo keeps turning on and off (koso clocks) So i'll just wire it to the battery. Went out for a rip with my friend who just recently purchased a ktm 125 six days and that is a complete different league in terms of bike. So much more grunt than what i am used to! Still though dt kept up with him at about 70mph but he said he wasn't wide open.
                  http://i.imgur.com/fA2HyQ8.jpg?1
                  So i plan on keeping this offroad setup now, much more fun when you have a friend to ride with and a bike with an engine that doesn't break. Completely fell in love with it again, however my clutch cable frayed so i had to ride about 8 miles home with not clutch, was quite easy to be honest hardest part is getting going

                  My plan now is to rebuild my original engine, new rod, big end and crank bearings. Gearbox bearings etc seals you get it complete bottom end rebuild. Then maybe a 170 with ports corrected 😉 Who knows, but next payday this things having a powervalve servo fitted onto it

                  1 Reply Last reply
                  4
                  • Biker_123B Offline
                    Biker_123B Offline
                    Biker_123
                    wrote on last edited by
                    #89

                    Those ktm 125's are crazy quick! Glad your bikes up and running mate and you can finally enjoy it again .

                    Every problem has a solution

                    ConnorDTRC 1 Reply Last reply
                    1
                    • Uber_BelugaU Offline
                      Uber_BelugaU Offline
                      Uber_Beluga
                      wrote on last edited by
                      #90

                      Nice bike dude. I'm envious that yours is running.

                      -- '02 DT 125 r -- '06 DT125re(Stolen) --

                      1 Reply Last reply
                      0
                      • Biker_123B Biker_123

                        Those ktm 125's are crazy quick! Glad your bikes up and running mate and you can finally enjoy it again .

                        ConnorDTRC Offline
                        ConnorDTRC Offline
                        ConnorDTR
                        wrote on last edited by
                        #91

                        @Biker_123 They're mental, only blipped the throttle in second gear at like 10 mph and it just wants to shoot off! Deffinitely what i would upgrade to.

                        @Uber_Beluga Don't be envious! As my luck goes this will last all of 2 weeks haha

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