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My KB125 Rebuild

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  • All the best bro. I wouldn't wish you luck!!!!! You have worked hard and love your bike. You will succeed. Sorry I can't help as I myself am learning about KB. All I can give you is my support.
    Tour De Thekkady

    The Return of the KB

    The Run-in Adventure

    150cc doing 100+ is great!
    100cc doing 100+ is awesome!!
    150cc cornering like hell is great!
    100cc cornering like hell is awesome!!
    THAT'S WHY I RIDE A RTZ!!

    Comment


    • @harishmumarko: thanks buddy. read about your exploits on the kb100. i like your passion for the bike.

      a few more snaps.







      Last edited by rookieraj; 10-10-2011, 02:22 AM.

      Comment


      • Originally posted by rookieraj View Post
        First step - removing the metal sheaths of the bearings. thank you kb100 for the tip.[/IMG]
        guys.. anyone with tips on the best way to fit bearings? Some say to freeze them and then install..some say heat them.. Please share your experiences and views on this.
        1985 Yamaha RD350 HT
        1989 Ki-Honda 110
        1994 Suzuki Shogun
        1997 Yamaha RX135
        2008 Yamaha FZ
        Suzuki Supra Powerup
        IND-SUZUKI AX100
        Hero IMPULSE
        TVS NTORQ


        No Cams, No Valves, No Headaches.

        Comment


        • Good going rookie....looks terrific. Keep at it and you'll get there. Posted snaps btw!
          True blue smoke makes the devil's blood run cold

          Comment


          • Originally posted by yamdoot View Post
            guys.. anyone with tips on the best way to fit bearings? Some say to freeze them and then install..some say heat them.. Please share your experiences and views on this.
            for once i can give a few tips to yamdoot!!!

            after burning my fingers (and my pocket too) i think i have some understanding about installing bearings. this is how i do it:-

            if the bearing has to be placed inside a socket, keep the bearing (in its plastic wrapper) inside the freezer for a couple of hours. you may also like to keep the socket part in the sun so that it gets heated up and expands. thereafter apply lubricant on the inside rim of the socket. take the bearing out of the freezer, dab some lubricant on the outside rim and place it in the socket. you can now hammer it lightly on the outer rim with a mallet/nylon hammer or alternatively take a socket bit (as in the multi wrench tool kit) corresponding to the size of the outer rim of the bearing, place it on the bearing and hammer it lightly. it goes in without a hitch. spray wd40 to prevent corrosion due to the subsequent sweating of the bearing.

            if you have to install the bearing on a shaft, keep the shaft in the freezer. take a metal lug (i use a tube wrench) which can easily fit in the inner race of the bearing. heat in in the oven at the max setting. then pace it in the innner race of the bearing for five minutes and take it out. take the shaft out of the freezer, place the bearing on it and hammer the inner race of the bearing lightly with the mallet/nylon hammer.

            point to note - pressure should be applied only on the race which is in contact. therefore apply pressure on the outer race in fitting into a socket and inner race if installing on a shaft.

            its not the easiest or the perfect way but this is how i did it.

            Comment


            • Originally posted by rookieraj View Post
              for once i can give a few tips to yamdoot!!!

              after burning my fingers (and my pocket too) i think i have some understanding about installing bearings. this is how i do it:-

              if the bearing has to be placed inside a socket, keep the bearing (in its plastic wrapper) inside the freezer for a couple of hours. you may also like to keep the socket part in the sun so that it gets heated up and expands. thereafter apply lubricant on the inside rim of the socket. take the bearing out of the freezer, dab some lubricant on the outside rim and place it in the socket. you can now hammer it lightly on the outer rim with a mallet/nylon hammer or alternatively take a socket bit (as in the multi wrench tool kit) corresponding to the size of the outer rim of the bearing, place it on the bearing and hammer it lightly. it goes in without a hitch. spray wd40 to prevent corrosion due to the subsequent sweating of the bearing.

              if you have to install the bearing on a shaft, keep the shaft in the freezer. take a metal lug (i use a tube wrench) which can easily fit in the inner race of the bearing. heat in in the oven at the max setting. then pace it in the innner race of the bearing for five minutes and take it out. take the shaft out of the freezer, place the bearing on it and hammer the inner race of the bearing lightly with the mallet/nylon hammer.

              point to note - pressure should be applied only on the race which is in contact. therefore apply pressure on the outer race in fitting into a socket and inner race if installing on a shaft.

              its not the easiest or the perfect way but this is how i did it.

              ++1 couldnt have said it any better
              Kawasaki KB100/enduro/125 substitute parts list http://www.xbhp.com/talkies/508615-post105.html

              Comment


              • Originally posted by rookieraj View Post
                for once i can give a few tips to yamdoot!!!

                after burning my fingers (and my pocket too) i think i have some understanding about installing bearings. this is how i do it:-

                if the bearing has to be placed inside a socket, keep the bearing (in its plastic wrapper) inside the freezer for a couple of hours. you may also like to keep the socket part in the sun so that it gets heated up and expands. thereafter apply lubricant on the inside rim of the socket. take the bearing out of the freezer, dab some lubricant on the outside rim and place it in the socket. you can now hammer it lightly on the outer rim with a mallet/nylon hammer or alternatively take a socket bit (as in the multi wrench tool kit) corresponding to the size of the outer rim of the bearing, place it on the bearing and hammer it lightly. it goes in without a hitch. spray wd40 to prevent corrosion due to the subsequent sweating of the bearing.

                if you have to install the bearing on a shaft, keep the shaft in the freezer. take a metal lug (i use a tube wrench) which can easily fit in the inner race of the bearing. heat in in the oven at the max setting. then pace it in the innner race of the bearing for five minutes and take it out. take the shaft out of the freezer, place the bearing on it and hammer the inner race of the bearing lightly with the mallet/nylon hammer.

                point to note - pressure should be applied only on the race which is in contact. therefore apply pressure on the outer race in fitting into a socket and inner race if installing on a shaft.

                its not the easiest or the perfect way but this is how i did it.

                Thanks Rookie! just what i wanted to know.
                1985 Yamaha RD350 HT
                1989 Ki-Honda 110
                1994 Suzuki Shogun
                1997 Yamaha RX135
                2008 Yamaha FZ
                Suzuki Supra Powerup
                IND-SUZUKI AX100
                Hero IMPULSE
                TVS NTORQ


                No Cams, No Valves, No Headaches.

                Comment


                • Originally posted by Bluesmoke View Post
                  Good going rookie....looks terrific. Keep at it and you'll get there. Posted snaps btw!
                  thanks, bluesmoke. i've seen the pictures. both the bikes together look terrific. the rx135 definitely looks much better live than in the pictures. want to see the kb100 too. hopefully i'll get to see it soon.

                  Originally posted by kb100 View Post
                  ++1 couldnt have said it any better
                  kb100, i hope i've done justice to your mentoring.

                  Comment


                  • Originally posted by rookieraj View Post
                    for once i can give a few tips to yamdoot!!!

                    after burning my fingers (and my pocket too) i think i have some understanding about installing bearings. this is how i do it:-

                    if the bearing has to be placed inside a socket, keep the bearing (in its plastic wrapper) inside the freezer for a couple of hours. you may also like to keep the socket part in the sun so that it gets heated up and expands. thereafter apply lubricant on the inside rim of the socket. take the bearing out of the freezer, dab some lubricant on the outside rim and place it in the socket. you can now hammer it lightly on the outer rim with a mallet/nylon hammer or alternatively take a socket bit (as in the multi wrench tool kit) corresponding to the size of the outer rim of the bearing, place it on the bearing and hammer it lightly. it goes in without a hitch. spray wd40 to prevent corrosion due to the subsequent sweating of the bearing.

                    if you have to install the bearing on a shaft, keep the shaft in the freezer. take a metal lug (i use a tube wrench) which can easily fit in the inner race of the bearing. heat in in the oven at the max setting. then pace it in the innner race of the bearing for five minutes and take it out. take the shaft out of the freezer, place the bearing on it and hammer the inner race of the bearing lightly with the mallet/nylon hammer.

                    point to note - pressure should be applied only on the race which is in contact. therefore apply pressure on the outer race in fitting into a socket and inner race if installing on a shaft.

                    its not the easiest or the perfect way but this is how i did it.

                    Hmmmmmmm great idea - never knew about it. Freezing the inner part and heating the outer part. I am sure it helps in easy fixing.

                    I had always seen my mechanic apply a little oil/grease to the outer ring of the bearing and then keep it in place and on top of the new bearing he would keep the old bearing (so that the diameters match exactly) and gently hammer the old bearing in a circular motion so that it goes in straight.

                    I learnt something today and was wondering why the mechanics don't do the freeze/heat combination process. Probably with so much work on hand, they might not find the time to follow this procedure and a few of them just don't care.

                    Comment


                    • Originally posted by yaser_kb100 View Post
                      Hmmmmmmm great idea ........ and a few of them just don't care.
                      yaser bhai, the process is a little time consuming vis-a-vis the conventional hammer and tongs approach. i learnt about it by watching tens of videos on Youtube and tele-mentoring by kb100. it was necessary because of the DIY bug that i'm afflicted with. i just explained the process in my own words.

                      off topic. are you back in India?

                      Comment


                      • engine rebuild

                        a few more snaps


















                        Comment


                        • Originally posted by rookieraj View Post
                          thanks, bluesmoke. i've seen the pictures. both the bikes together look terrific. the rx135 definitely looks much better live than in the pictures. want to see the kb100 too. hopefully i'll get to see it soon.



                          kb100, i hope i've done justice to your mentoring.
                          what mentoring , you adapted and improvised with resources available to you and the results are just awesome, btw did you get the crank in?? , once you do that the rest will be a piece of cake
                          Kawasaki KB100/enduro/125 substitute parts list http://www.xbhp.com/talkies/508615-post105.html

                          Comment


                          • Originally posted by rookieraj View Post
                            yaser bhai, the process is a little time consuming vis-a-vis the conventional hammer and tongs approach. i learnt about it by watching tens of videos on Youtube and tele-mentoring by kb100. it was necessary because of the DIY bug that i'm afflicted with. i just explained the process in my own words.

                            off topic. are you back in India?
                            I must say I have been following and admiring your thread and hats off to you for the details you are looking into and I am sure that you are more than happy that the DIY bug bit you

                            During one of the engine rebuilds of my KB, I tore her apart and assembled most of it but that was with some assistance of my mechanic and yes I am lucky that he allows me to work in his garage using all the available tools. Well he is more of a friend to me .

                            All these years, I used to think that I am the biggest fan of the KB but looking at your thread maybe I would say "Ok I am in the top 5"

                            Eagerly waiting to see your ride back in one piece.

                            No, I am not in india. I am in a place where you get to see a motorbike only once in a while. On the positive side, I do get to lay my hands on a CBR600RR atleast once/twice a month but thatz about it.

                            Comment


                            • Originally posted by rookieraj View Post
                              a few more snaps



















                              Great pics there rookie! What will you be working on today?
                              True blue smoke makes the devil's blood run cold

                              Comment


                              • freezing parts.

                                instead of keeping parts in freezer for contraction, there is an easier method...Apply DRY ICE on the shaft or the bearing with dry ice kept wrapped around the part....it had worked for me..
                                When Was The Last Time,You Did Something For The First Time.

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