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nsr125 help

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  • mad73M Offline
    mad73M Offline
    mad73
    wrote on last edited by
    #21

    not sure wot happened with the pic but the link works
    do have side fairings wont put them on till I no he aint gona drop it

    CalumC 1 Reply Last reply
    0
    • mad73M mad73

      not sure wot happened with the pic but the link works
      do have side fairings wont put them on till I no he aint gona drop it

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #22

      @mad73 said:

      not sure wot happened with the pic but the link works
      do have side fairings wont put them on till I no he aint gona drop it

      Please read:

      http://192.168.0.2/topic/5/embedding-images

      If you're still having problems open up another thread.

      Always Originate, Never Pirate!

      1 Reply Last reply
      0
      • mad73M Offline
        mad73M Offline
        mad73
        wrote on last edited by
        #23

        read it, think ive got it now will open a new thread and see if I can get it right lol

        CalumC 1 Reply Last reply
        0
        • mad73M mad73

          read it, think ive got it now will open a new thread and see if I can get it right lol

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #24

          @mad73 you are not the only one. A lot of people seem confused. Adding tags and what not. The internets moved on since the 90's lol. Just paste the location of the image and node will do the rest.

          Always Originate, Never Pirate!

          1 Reply Last reply
          0
          • mad73M Offline
            mad73M Offline
            mad73
            wrote on last edited by
            #25

            ok son went out on the nsr the other night and said its not running right so I took it for a spin and its hard to pull away on it its bogging down quite a bit quite dangerous pulling out of junctions but once moving all seems good, also fork sill is leaking which aint much of a prob I changed them a couple of months ago must not of put it in right as the other side is good
            any one got any ideas wot to look for with the bogging jets are correct

            1 Reply Last reply
            0
            • CalumC Offline
              CalumC Offline
              Calum
              wrote on last edited by
              #26

              Sounds like way too much air. Tell me does it sound quite deep when you rev it.

              In neutral after its warm, when you blip the throttle does it respond instantly.

              Like this numpty here

              https://youtu.be/MC5sf4Cx4o4

              Says aww 99 octane fuel killed my bike. Uhmm no mate, you can clearly here the snorkel is not in the air box. Clear as day. I don't understand why people remove them lol

              Always Originate, Never Pirate!

              mad73M 1 Reply Last reply
              0
              • CarlosrexxC Carlosrexx

                I had a 'full power' NSR foxeye j22 j think it was. Although I never had any problems like yours, the powervalve would stop working all the time and would retard the engine. Sounds similar to what you're experiencing, I just ended up pinning the valve wide open and it never gave me an issue again.

                I'm not saying this is your solution, but it would be something I would take a look at regarding the running issues. With regards to PSI and compression, definitely check everything is bolted down to correct torque settings. Double check everything, make sure the carb is installed tight, no air leaks, proper float movement and clear jets. I know it's all simple stuff but sometimes stuff gets overlooked and it's the simplest thing that's stopping the bike from working.

                http://i1227.photobucket.com/albums/ee433/RV02-Sachs/NSR 125/ADA2BEBF-043A-46C8-9B71-7A61B3F637ED.jpg

                mad73M Offline
                mad73M Offline
                mad73
                wrote on last edited by
                #27

                @Carlosrexx said:

                I had a 'full power' NSR foxeye j22 j think it was. Although I never had any problems like yours, the powervalve would stop working all the time and would retard the engine. Sounds similar to what you're experiencing, I just ended up pinning the valve wide open and it never gave me an issue again.

                I'm not saying this is your solution, but it would be something I would take a look at regarding the running issues. With regards to PSI and compression, definitely check everything is bolted down to correct torque settings. Double check everything, make sure the carb is installed tight, no air leaks, proper float movement and clear jets. I know it's all simple stuff but sometimes stuff gets overlooked and it's the simplest thing that's stopping the bike from working.

                http://i1227.photobucket.com/albums/ee433/RV02-Sachs/NSR 125/ADA2BEBF-043A-46C8-9B71-7A61B3F637ED.jpg

                how would I pin open the power valve ? might try this

                CalumC 1 Reply Last reply
                0
                • mad73M mad73

                  @Carlosrexx said:

                  I had a 'full power' NSR foxeye j22 j think it was. Although I never had any problems like yours, the powervalve would stop working all the time and would retard the engine. Sounds similar to what you're experiencing, I just ended up pinning the valve wide open and it never gave me an issue again.

                  I'm not saying this is your solution, but it would be something I would take a look at regarding the running issues. With regards to PSI and compression, definitely check everything is bolted down to correct torque settings. Double check everything, make sure the carb is installed tight, no air leaks, proper float movement and clear jets. I know it's all simple stuff but sometimes stuff gets overlooked and it's the simplest thing that's stopping the bike from working.

                  http://i1227.photobucket.com/albums/ee433/RV02-Sachs/NSR 125/ADA2BEBF-043A-46C8-9B71-7A61B3F637ED.jpg

                  how would I pin open the power valve ? might try this

                  CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #28

                  @mad73 pining the valve open will make things much worse.

                  If the bike is derestricted then it will want a fully operational powervalve

                  Always Originate, Never Pirate!

                  1 Reply Last reply
                  0
                  • mad73M Offline
                    mad73M Offline
                    mad73
                    wrote on last edited by
                    #29

                    yeah fully derestricted its just pulling away where it seems to have a prob

                    1 Reply Last reply
                    0
                    • CalumC Calum

                      Sounds like way too much air. Tell me does it sound quite deep when you rev it.

                      In neutral after its warm, when you blip the throttle does it respond instantly.

                      Like this numpty here

                      https://youtu.be/MC5sf4Cx4o4

                      Says aww 99 octane fuel killed my bike. Uhmm no mate, you can clearly here the snorkel is not in the air box. Clear as day. I don't understand why people remove them lol

                      mad73M Offline
                      mad73M Offline
                      mad73
                      wrote on last edited by
                      #30

                      @Calum a little bit like that , will have to try and get a video up of it , have to slip the clutch to get it to pull then seems fine , hasn't got great response when revving from idle ,

                      1 Reply Last reply
                      0
                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #31

                        Sounds to me like too much air, or the air flow is stalling.

                        Always Originate, Never Pirate!

                        1 Reply Last reply
                        0
                        • mad73M Offline
                          mad73M Offline
                          mad73
                          wrote on last edited by
                          #32

                          How would I sort that ?

                          1 Reply Last reply
                          0
                          • CalumC Offline
                            CalumC Offline
                            Calum
                            wrote on last edited by
                            #33

                            Make sure the snorkel is in there and that there are no sharp turns in the inlet Tracy. It's the bend into the air box that stalls air flow. Hence why snorkels are a must.

                            Always Originate, Never Pirate!

                            mad73M 1 Reply Last reply
                            0
                            • CalumC Calum

                              Make sure the snorkel is in there and that there are no sharp turns in the inlet Tracy. It's the bend into the air box that stalls air flow. Hence why snorkels are a must.

                              mad73M Offline
                              mad73M Offline
                              mad73
                              wrote on last edited by
                              #34

                              @Calum ok will have a play tomorrow if it aint raining , another reason why I need to pull my finger out and get the man cave built , also snorkel is that the breather pipe

                              1 Reply Last reply
                              0
                              • mad73M Offline
                                mad73M Offline
                                mad73
                                wrote on last edited by
                                #35

                                ok had another play today got it running a little better screwed the choke cable right in which made it pull off better still a little lumpy at about 20 to 30 mph gona try a new air filter which might help , tried running with no filter just the box but that didn't help made it worse at least it can pull away now will have to try more once its run in , a few pics of the air box set up and the plug , does the plug look normal ?
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1916_zpsyseldbba.jpg
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1914_zpszf1bbe4c.jpg
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1913_zpssf9qakfq.jpg
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1911_zpspu4mopeh.jpg
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1910_zpsl56toq0d.jpg
                                http://i286.photobucket.com/albums/ll115/mad73_2008/IMG_1908_zpsmahlhzx3.jpg

                                1 Reply Last reply
                                0
                                • mad73M Offline
                                  mad73M Offline
                                  mad73
                                  wrote on last edited by
                                  #36

                                  https://www.youtube.com/watch?v=tOVzRCxz4sw
                                  how it runs now

                                  1 Reply Last reply
                                  0
                                  • CalumC Offline
                                    CalumC Offline
                                    Calum
                                    wrote on last edited by
                                    #37

                                    Cool, snorkel is there. If taking The filtration out makes it worse, then it's getting too much air and not enough fuel. If you max out the idle screw movement then you will need to go up a jet size.

                                    I have posted a carb tuning tutorial on this forum that will help sort it.

                                    If it runs fine with wide open throttle, then you can leave the main jet well alone.

                                    Always Originate, Never Pirate!

                                    1 Reply Last reply
                                    0
                                    • mad73M Offline
                                      mad73M Offline
                                      mad73
                                      wrote on last edited by
                                      #38

                                      I shall have a read of that , the jets are whats recommended for full power nsr, once its run in il take for another spin to see how it run coz asking my son I might as well ask my dog , dog probs knows more and would get a clearer answer lol

                                      1 Reply Last reply
                                      0
                                      • CalumC Offline
                                        CalumC Offline
                                        Calum
                                        wrote on last edited by
                                        #39

                                        Yeah mate. Start with what's recommended and work from there.

                                        Remember fuel quality, air temperature and the quality of the components will play it's own part in jetting. Highly strung two strokes are more effected by these changes than less tuned bikes.

                                        Always Originate, Never Pirate!

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