Since '02 xBhp is different things to different people. From a close knit national community of bikers to India's only motorcycling lifestyle magazine and a place to make like-minded biker friends. Join us

Axor
Magazine
Castrol Power 1

Scan – see – think – act.

Our Partner

Announcement

Collapse
No announcement yet.

Help with Yamaha Rx135 Piston Sizes

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    [Photo Feature]: Help with Yamaha Rx135 Piston Sizes

    Dear All,


    My Yamaha Rx 135 is currently have the piston as in the picture. My piston rings are worn out and make sound, so my mechanic suggested to do a boreing job and put new piston rings and piston. SO its a request to all to suggest me a piston of that can be used after boreing.

    Thanks is Advance.

    Click image for larger version Name: 2013-05-05 11.27.35.jpg Views: 1 Size: 95.0 KB ID: 1976502 Click image for larger version Name: 2013-05-05 11.27.52.jpg Views: 1 Size: 96.9 KB ID: 1976503
    The RX are my soul.
    1999- Rx135
    1999- Bajaj Caliber
    1998- RXZ
    1994- Rx100
    2012- Bajaj Discover 125ST
    Tags: None
  • #2
    Re: Help with Yamaha Rx135 Piston Sizes

    Query Approved​
    Biking is not about what you have between your legs, its all about how well you use it!!!!!!!

    Give your details here if you want to help your fellow xBhpian stranded in your city

    Touring Blog: Cycling in Mongolia!

    Comment

    • #3
      Re: Help with Yamaha Rx135 Piston Sizes

      If going for a rebore, you will have to bore it to next oversize which is 0.75 mm. Since ART piston is only available upto 0.50 mm you can try a Goetze piston or a Mahle one, UHSA pistons are available too but I'm not sure if the quality is good as their sewing machines. Maybe just replacing the rings will do the trick, your piston seems to have very low amount of carbon deposit which is good. How much the bike has ran since the last rebore?
      I am back!

      Comment

      • #4
        Re: Help with Yamaha Rx135 Piston Sizes

        Try this before you go for a re-bore
        a) Changing the piston rings. If that should suffice, you would save a bore.
        b) In case you do have to re-bore, please get it done on a CNC machine. There is not much difference in the sizes and the local chaps might mess-up your bore.

        Cheers,
        Zohaib
        Proud owner of - Vespa - LX 125SE,Kawasaki - SX Enduro, Suzuki AX100, Rajoot 175, Yamaha RX 135 (5 speed), Yezdi CL II, CBZ Classic, Karizma Classic,Bullet G2 Series, RD350 HT (Cafe racer), RD350 HT (Stock),KTM - Duke 390 (2014), Interceptor 650, Suzuki - GSX S750, Suzuki - GSX 1300R Hayabusa.

        My threads at Xbhp - Bajaj Enduro , Yezdi CLII Hades , RD350 Cupid , CBZ Classic , 2nd RD350 - Rs. 10000

        Comment

        • #5
          Originally posted by Cleaner View Post
          How much the bike has ran since the last rebore?
          My bike has done around 20k since last rebore. Would have last longer,but it was abused by my friends during hostel days.

          Originally posted by ;942375
          x Changing the piston rings. If that should suffice, you would save a bore.
          Which company rings should I use? I am thinking of going for a rebore with slips and standard ART piston. Will it hamper performance?
          Last edited by fohimuddin; 05-07-2013, 01:04 AM.
          The RX are my soul.
          1999- Rx135
          1999- Bajaj Caliber
          1998- RXZ
          1994- Rx100
          2012- Bajaj Discover 125ST

          Comment

          • #6
            Re: Help with Yamaha Rx135 Piston Sizes

            Try the OEM rings, they are available upto .50mm overbore. If changing rings doesn't do the trick then rebore to .75 mm. I have no idea what you mean by slips but I guess you meant sleeving the bore. If that's what you meant, there is no need to do so as you still have two rebores left, sleeving will lead to other problem most of the time.
            I am back!

            Comment

            • #7
              Re: Help with Yamaha Rx135 Piston Sizes

              Please post a pic of the piston from the sides too. This will help members to advice further. How many kms has the current piston done? while you take the piston out, get the gudgeon pin and its bearing checked too.
              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

              • #8
                Re: Help with Yamaha Rx135 Piston Sizes

                Originally posted by zohaibak View Post
                Try this before you go for a re-bore
                a) Changing the piston rings. If that should suffice, you would save a bore.
                b) In case you do have to re-bore, please get it done on a CNC machine. There is not much difference in the sizes and the local chaps might mess-up your bore.

                Cheers,
                Zohaib
                i have seen boring done on lathe machines, is it the same you are referring or CNC machines are different?
                if yes, what are the advantages of reboring on CNC?
                Last edited by powerShift; 02-14-2014, 05:27 PM.

                Comment

                • #9
                  Re: Help with Yamaha Rx135 Piston Sizes

                  CNC machines have accuracy in microns which is ideal for a bore job. Lathe guys cant match that accuracy.
                  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

                  • #10
                    Re: Help with Yamaha Rx135 Piston Sizes

                    Originally posted by Cleaner View Post
                    Try the OEM rings, they are available upto .50mm overbore. If changing rings doesn't do the trick then rebore to .75 mm. I have no idea what you mean by slips but I guess you meant sleeving the bore. If that's what you meant, there is no need to do so as you still have two rebores left, sleeving will lead to other problem most of the time.
                    what are the problems caused by sleeving can you please give details ?

                    Comment

                    • #11
                      Re: Help with Yamaha Rx135 Piston Sizes

                      Originally posted by classic.infinity View Post
                      what are the problems caused by sleeving can you please give details ?

                      Sleeves are made of iron alloys and most of the time are very reliable, the engine is bored on an boring machine and bored to larger size so that the new iron sleeve can be inserted in it, the sleeves can either be pressed into the cylinder or it can be heat shrinked,after fitting the sleeve cylinder needs to honed truly, but all of this requires tremedous accuracy and accurate machines, if sleeving is not done properly engine will run hot and will not hold up for very long,i doubt that in our country one will be able to find proper sleeving shops who have got proper machinery and knowledge of doing this kind of job.

                      Comment

                      Previous template Next
                      Working...
                      X
                      © xBhp.com 2026. All rights reserved.
                      Designed by xBhp