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DT125R FORUM

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  4. New bike, no clue

New bike, no clue

Scheduled Pinned Locked Moved DTR
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  • D dazzagtir

    I will buy a new plug tomorrow but to be honest I dont think ive ever seen a healthy blue spark.!
    Which means if its electrical it could be the plug, HT lead/cap, coil, CDI, earth... think of anymore.? 😂

    To be honest I dont think ive taken a photo of it since I bought it a few days ago.

    Its abit of a sh*t box to be honest, its seen better days and looks more like a "rat look" not by choice but by lack of maintenance. 😂

    Actually theres a picture I took when i was pushing it home. 😂

    0_1495840263203_IMG_8798.JPG

    declanD Offline
    declanD Offline
    declan
    wrote on last edited by
    #13

    @dazzagtir even after I spent hours on mine yours is still better how much did you pay it's a pretty nice bike

    declanD 1 Reply Last reply
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    • declanD declan

      @dazzagtir even after I spent hours on mine yours is still better how much did you pay it's a pretty nice bike

      declanD Offline
      declanD Offline
      declan
      wrote on last edited by
      #14

      @declan I see you got a drink there bet you were half dead when you got home and electricity really isn't my strongpoint sorry lol

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      • D Offline
        D Offline
        dazzagtir
        wrote on last edited by
        #15

        15 second Video I made of when I first started the bike immediately after the rebuild, seems to be running perfectly healthy from what I can see and hear.

        Ive just chucked it onto youtube so you can watch it. 👍

        https://youtu.be/cczAUZ-Wx2k

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        • D Offline
          D Offline
          dazzagtir
          wrote on last edited by
          #16

          I pushed it roughly 4 miles.
          I have access to a van but that day someone else was using it so I opted to just lug it home.
          I was abit tired at the end but no dramas. 😂
          Paid £550 and it also came with a set of knobbly tyres too.
          The road tyres are brand new, MOT until December I think.

          declanD 1 Reply Last reply
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          • D dazzagtir

            I pushed it roughly 4 miles.
            I have access to a van but that day someone else was using it so I opted to just lug it home.
            I was abit tired at the end but no dramas. 😂
            Paid £550 and it also came with a set of knobbly tyres too.
            The road tyres are brand new, MOT until December I think.

            declanD Offline
            declanD Offline
            declan
            wrote on last edited by
            #17

            @dazzagtir good deal I paid 900 for mine but the top end went I've been out on it a few times and love the thing

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            • D Offline
              D Offline
              dazzagtir
              wrote on last edited by
              #18

              Ive had it about 5 days now.
              I bought it broken.
              Rebuilt the top end and then covered 2.3 miles and back to square 1 again.!
              I couple of minutes I was riding it, I was riding like a granny because of the rebuild and didn't get past a few thousand RPM so didn't get to enjoy that nostalgia feeling of power valve kicking in. 😂

              declanD 1 Reply Last reply
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              • D dazzagtir

                Ive had it about 5 days now.
                I bought it broken.
                Rebuilt the top end and then covered 2.3 miles and back to square 1 again.!
                I couple of minutes I was riding it, I was riding like a granny because of the rebuild and didn't get past a few thousand RPM so didn't get to enjoy that nostalgia feeling of power valve kicking in. 😂

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #19

                @dazzagtir honestly I went easy for for about 40 mins and then started taking it up to 7k let the power get there then Change and it seems fine that's how I'm riding it some do hundreds of miles of easy riding but I worked hard on it and want to enjoy it and enjoying it Iam.

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                • D Offline
                  D Offline
                  dazzagtir
                  wrote on last edited by
                  #20

                  Lol, If I manage to get it going again I will do some more easy riding as ive owned 2 strokes in the past and ive also killed 2 strokes in the past.
                  I am happy to sit easy for a few hundred miles and open her up occasionally.
                  I cant wait to get it up amd running again and hit the road in the sun. 🌞

                  declanD 1 Reply Last reply
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                  • D dazzagtir

                    Lol, If I manage to get it going again I will do some more easy riding as ive owned 2 strokes in the past and ive also killed 2 strokes in the past.
                    I am happy to sit easy for a few hundred miles and open her up occasionally.
                    I cant wait to get it up amd running again and hit the road in the sun. 🌞

                    declanD Offline
                    declanD Offline
                    declan
                    wrote on last edited by
                    #21

                    @dazzagtir nothing better 😊

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                    • MightymanM Offline
                      MightymanM Offline
                      Mightyman
                      wrote on last edited by
                      #22

                      Nice @dazzagtir. I would sort out the oil before you do anything else. Don't want to be running more oil than you need as it can easily choke up the spark plug, especially when idling. Bleed the pump and use that, or disconnect it for now if you haven't already and just run premix.

                      Bike sounds good though in that vid 👍

                      TDR 125 - 2001

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                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #23

                        Is ir running a snorkel? Sounds like it hesitated slightly.

                        You are going to need a nice clean spark if you want it running right. With that in mind I have always used iridium plugs, grab yourself a new coil and HT Lead as these are really cheap to replace and see if it's any better.

                        If it's still not happy then you will want to check the rectifier. Impedance test through the coil and make sure the pick up is receiving a signal.

                        Side stand switches can fail which will also cause rhe CDI to not spark. It's a Normally open circuit so if you bypass it you need to.complete the circuit. If that doesn't work then it might be the CDI

                        Always Originate, Never Pirate!

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                        • D Offline
                          D Offline
                          dazzagtir
                          wrote on last edited by
                          #24

                          Thanks for the replies guy.
                          Ive just taken the carb to pieces and rebuilt it again with the new rubber gasket in place.
                          It all seemed fine when I connected it until I turned the fuel on and the fuel just went straight into the carb and straight back out the over flow.? Litterally poured out as quickly as it was going in.
                          Ive since turned it off and on again and its now stopped.... must have been the float sticking.?
                          Ive just taken the coil off and used a multimeter to it, ive set the multimeter to 200 ohms and i'm getting a reading of 01.1/01.3.

                          HT lead set on 20k ohms is reading 10.70

                          Does that sound like a fault coil.?

                          Thanks in advance.

                          declanD CalumC 2 Replies Last reply
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                          • D dazzagtir

                            Thanks for the replies guy.
                            Ive just taken the carb to pieces and rebuilt it again with the new rubber gasket in place.
                            It all seemed fine when I connected it until I turned the fuel on and the fuel just went straight into the carb and straight back out the over flow.? Litterally poured out as quickly as it was going in.
                            Ive since turned it off and on again and its now stopped.... must have been the float sticking.?
                            Ive just taken the coil off and used a multimeter to it, ive set the multimeter to 200 ohms and i'm getting a reading of 01.1/01.3.

                            HT lead set on 20k ohms is reading 10.70

                            Does that sound like a fault coil.?

                            Thanks in advance.

                            declanD Offline
                            declanD Offline
                            declan
                            wrote on last edited by
                            #25

                            @dazzagtir yeah that will be your float tap the float
                            Bowl with the handle of a screw driver a few times

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                            • D dazzagtir

                              Thanks for the replies guy.
                              Ive just taken the carb to pieces and rebuilt it again with the new rubber gasket in place.
                              It all seemed fine when I connected it until I turned the fuel on and the fuel just went straight into the carb and straight back out the over flow.? Litterally poured out as quickly as it was going in.
                              Ive since turned it off and on again and its now stopped.... must have been the float sticking.?
                              Ive just taken the coil off and used a multimeter to it, ive set the multimeter to 200 ohms and i'm getting a reading of 01.1/01.3.

                              HT lead set on 20k ohms is reading 10.70

                              Does that sound like a fault coil.?

                              Thanks in advance.

                              CalumC Offline
                              CalumC Offline
                              Calum
                              wrote on last edited by
                              #26

                              @dazzagtir Sounds like the float valve isn't shutting the fuel off properly bud.

                              Always Originate, Never Pirate!

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                              • D Offline
                                D Offline
                                dazzagtir
                                wrote on last edited by
                                #27

                                Regarding the lack of spark, ive just got back from the closest parts store and they tested my coil, lead and cap and said they were all perfectly fine.
                                Any idea what else could be causing a lack of spark/?
                                I have the CDI in my hand but I do not know how to test it.?
                                Thanks for all your help.

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                                • D Offline
                                  D Offline
                                  dazzagtir
                                  wrote on last edited by
                                  #28

                                  Right.....

                                  Ive got the bike going..!
                                  Sounds healthy enough, no fuel leaking anymore either.
                                  HOWEVER.....
                                  I just took it out for a ride about 5 miles in total, it doesn't seem to tick over very well, it runs correctly with the choke on but not very well with the choke off.
                                  (I'm guessin choke on is up and choke off is down?)
                                  The revs can be controlled using the idle screw on the carb when the choke is on, however if you turn the choke off is revs higher and cant be adjusted with the screw...?? Abit weird.

                                  When riding along, pull the clutch in the change gear and the revs creep up and you get abit of a (I look like I cant ride a bike moment when you release the clutch because the revs are high)

                                  Also when stopping the bike the revs creep up and rev high like i'm being impatient.!

                                  Is this something someone has experienced before and found the answer to.?

                                  Atm I'm guess the throttle cable may need replacing perhaps.

                                  Thanks.

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                                  • D Offline
                                    D Offline
                                    dazzagtir
                                    wrote on last edited by
                                    #29

                                    https://youtu.be/ztLEDHhzSto

                                    declanD 1 Reply Last reply
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                                    • D dazzagtir

                                      https://youtu.be/ztLEDHhzSto

                                      declanD Offline
                                      declanD Offline
                                      declan
                                      wrote on last edited by
                                      #30

                                      @dazzagtir I was experiencing simmilar things with my freshly rebutilt bike it seemed to be the throttle cable pulling slightly which threw all the other adjustments off check this as I tried hours on end and this sorted it

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                                      • D Offline
                                        D Offline
                                        dazzagtir
                                        wrote on last edited by
                                        #31

                                        Awesome, thanks Declan.

                                        I will go and try that now. 👍

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                                        • D Offline
                                          D Offline
                                          dazzagtir
                                          wrote on last edited by
                                          #32

                                          She needs a clean but she's now running great.
                                          Spend some time re routing the throttle cable and adjusting the idle screw with less premix fuel.
                                          Thanks everyone for your input and help. 👍

                                          0_1495914657274_IMG_9046.JPG

                                          declanD 1 Reply Last reply
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