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  • mudflaps
    Banned
    • May 2006
    • 808

    #1

    Paging dirtbike gurus

    Im having a problem with my bike.

    It sat for 6 months without starting. 1995 Kawasaki KX125, 2 stroke, you know the drill. Kicked it over a few times and it started without much hassle. Ran for about a minute, bogged out, then shut off. Pulled the air filter, it was ok. Pulled the plug, it was all sorts of gunked up. Cleaned it off, reinstalled, and bike started right up. Bike ran for about a minute again, and bogged out just like the first time. Whats my next step? Im leaning towards trying to rejet/rebuild the carb, but im not sure. 6 months ago, I rode it up and down the street a few times without issue.
  • E30 Reaktionär
    Site Manager
    • Aug 2006
    • 14451

    #2
    My 76 yamaha 175 enduro does the same thing. It is a carb issue. it proboply need cleaned out and freshened up. Then needs tuned in.

    1992 BMW 325iC
    1978 Chevrolet Monte Carlo
    1965 Chevrolet Corvair Monza 140hp

    Comment

    • jmarch
      Advanced Member
      • Oct 2004
      • 163

      #3
      You probably have clogged you carb jets (especially the pilot jet which lives in gas and has the smallest opening). Your float valve is probably also sticking. Buy a rebuild kit for your carb.
      1995 Porsche 993 6 speed
      2001 BMW M3 6 speed - DD
      2001 BMW 530iA Sport - Hers
      2005 KTM 450EXC 6 speed

      Gone:

      1988 BMW M3 2.5 EVOIII Clone
      1988 BMW 325is x2
      1985 BMW M635CSI 286hp
      2001 KTM 400MXC

      Comment

      • SchnellerVert
        No R3VLimiter
        • Sep 2005
        • 3948

        #4
        No stabil in the fuel tank correct?

        Comment

        • mudflaps
          Banned
          • May 2006
          • 808

          #5
          no stabil.

          im guessing carb rebuild, the carb was leaking out the bottom ALOT, im guessing the bowl was full and it was just overflow.

          Comment

          • AndrewBird
            The Mad Scientist
            • Oct 2003
            • 11892

            #6
            Stuck needle and seat. Engine is running WAY to rich, causing the plug to foul and for the engine to stall. Not to mention the gas overflow. Rebuild is necessary.

            Comment

            • mudflaps
              Banned
              • May 2006
              • 808

              #7
              yeah, i pulled the plug after the second shutoff, and it was moist, smelling of gas. i assumed it was pretty rich.

              Comment

              • gazellebeigem3
                No R3VLimiter
                • Jun 2005
                • 3712

                #8
                replace the starter

                Comment

                • mudflaps
                  Banned
                  • May 2006
                  • 808

                  #9
                  Originally posted by gazellebeigem3
                  replace the starter

                  fyl.

                  go procreate with fagzotti, kill your babies, then go kill yourself.

                  Comment

                  • mudflaps
                    Banned
                    • May 2006
                    • 808

                    #10
                    OT:

                    for real though, gazelle, never go to beanies muffler in reynoldsburg, they fucked my shit up pretty hardcore.

                    Comment

                    • gazellebeigem3
                      No R3VLimiter
                      • Jun 2005
                      • 3712

                      #11
                      Originally posted by mudflaps
                      fyl.

                      go procreate with fagzotti, kill your babies, then go kill yourself.
                      im sorry i dont know how to fix your dirtbike sweetheart. I know you really like me, youre just angry its broken. If you get that thing running, come by and pick me up. Ill throw a pity fuck your way.

                      Comment

                      • gazellebeigem3
                        No R3VLimiter
                        • Jun 2005
                        • 3712

                        #12
                        Originally posted by mudflaps
                        OT:

                        for real though, gazelle, never go to beanies muffler in reynoldsburg, they fucked my shit up pretty hardcore.
                        dude you should have known better than to go to 'da burg'. How bad are we talking??

                        Comment

                        • ivo316
                          E30 Fanatic
                          • Oct 2006
                          • 1222

                          #13
                          Don't think you need to rebuild the carb, just a major dissasembly and cleanup will do the trick.

                          While you are at it try tinkering with the main jet size, it does miracles on the KX.

                          I don't know if the 1995 model had this, there is a sort of box between the carb and the cylinder that has metal baffles, in spanish they are called "laminas", those are vacuum operated, and they open and close to flatten your power curve, to give you more power on the low rpm range. Those tend to stick too, so you need to clean that also, usually they were located in between the cylinder and the intake tube.

                          If you remove the carb and look into the cylinder you should see them blocking the view of what's inside, if there is nothing there, it just applies to older bikes.

                          Comment

                          • mudflaps
                            Banned
                            • May 2006
                            • 808

                            #14
                            Originally posted by ivo316
                            Don't think you need to rebuild the carb, just a major dissasembly and cleanup will do the trick.

                            While you are at it try tinkering with the main jet size, it does miracles on the KX.

                            I don't know if the 1995 model had this, there is a sort of box between the carb and the cylinder that has metal baffles, in spanish they are called "laminas", those are vacuum operated, and they open and close to flatten your power curve, to give you more power on the low rpm range. Those tend to stick too, so you need to clean that also, usually they were located in between the cylinder and the intake tube.

                            If you remove the carb and look into the cylinder you should see them blocking the view of what's inside, if there is nothing there, it just applies to older bikes.
                            danke schoen

                            Comment

                            • mudflaps
                              Banned
                              • May 2006
                              • 808

                              #15
                              Originally posted by gazellebeigem3
                              dude you should have known better than to go to 'da burg'. How bad are we talking??
                              they fucked up my zender front valence (cracked in about 4 places), and the tailpipes look as centered as a chinese downsyndrome child's eyes.

                              i was surprised, since everyone and their mom refered me to this place. I told this inbred son of a bitch that it needed a new muffler, he thought he could pull some magic, and tweak the M50 stock exhaust and bend it to fit. It definately doesnt fit, as I told him originally that it wouldnt. last time I go there.

                              Comment

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