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Karizma/Karizma R Ownership Experience

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  • #13336
    Originally posted by NIGHTMARE View Post
    For how much KM we have to replace the tires.
    Wrong question!

    Change tire when:-
    1. The tire treads go bald.
    2. There is uneven wear of the tire (due to improper fit earlier)
    3. The tire compound hardens due to non use for long.
    4. The tire leaks air from the side walls due to compound breakdown.
    5. There are deep punctures and the tire cannot be termed safe after repair.
    6. Tire sidewalls are torn.
    7. Tire slips on all sort of tarmac because there are no grooves left.
    And many more such reasons.

    This may happen @10k kms or 30k kms.
    Assuming that you're running on stock tires, front doesn't need replacement till 35k kms (approx) and rear till 30k kms being hard compound. - In ideal conditions.
    Got a $5 head? Get a $5 helmet.
    Because everyone who passes, isn't a martyr!

    Bullet Service Guide CBR 250R Parts Manual Fz16 service manual - https://drive.google.com/file/d/0B1-...VFQmJzakk/view
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    ZMR parts - https://drive.google.com/file/d/0B-U...it?usp=sharing
    P200NS Spares' prices - https://docs.google.com/spreadsheet/...taGd5R2c#gid=0

    Comment

    • #13337
      Originally posted by Ramborider View Post
      i had also checked by tunning AFR screw,no air leakage thogh AFR screw,its now on 3.75 anti clockwise turn.also checked from other mechanic they also said it could be due to piston ring or piston block issue.i also notice there is white smoke when rev around 6000-7000rpm(i didnt redline)on main stand.
      they said have to open head and check if if requred then may be piston block could be kaput.
      White smoke? How did you miss this in your initial post? This is a very serious issue. This is evident that your bore needs some attention. Please follow PSR Sir's advise. Remember, until you get this issue fixed, be gentle on the throttle and keep checking your oil level. Whenever there is white smoke, there's oil getting escaped to the chamber and burnt out.
      RX100 1996 | Karizma 2004 | Karizma-R 2011 | RXZ 1999 | RX 135 1998 | RX 100 1993 | CBF150 2005 - 2011

      2012 - Meghamalai | Kuttralam | 2011 Ooty | Munnar | 2010 Point Calimere | Horsley Hills | Yercaud

      Comment

      • #13338
        Originally posted by psr View Post
        White smoke coming through exhaust is confirmation of worn bore and piston rings.....better to change the bore kit ,unless you have very good re-boring done by knowledgeable people.
        But sir one doubt. I have noticed slight white smoke coming out of new bikes at the showroom when the showroom guys rev it recklessly. What could be the cause?.
        Cheetahs are faster but the lion is still the KING

        Being In Love with a Girl is like being a superbike fitted with SPEED LIMITER

        Comment

        • #13339
          Originally posted by SriramEfunds View Post
          White smoke? How did you miss this in your initial post? This is a very serious issue. This is evident that your bore needs some attention. Please follow PSR Sir's advise. Remember, until you get this issue fixed, be gentle on the throttle and keep checking your oil level. Whenever there is white smoke, there's oil getting escaped to the chamber and burnt out.
          i didnt redlined it so coudnt got idea about it,sorry for it :P i dont like to keep WOT in neutral

          Originally posted by psr View Post
          White smoke coming through exhaust is confirmation of worn bore and piston rings.....better to change the bore kit ,unless you have very good re-boring done by knowledgeable people.
          i opened piston block head,and observed very light lines on block and exaust valve is bent and leak!i know a guy who is expert in honing,boring.got Usha piston of 20number(20thou bigger than standard)and he will complete block honing tomorrow.

          *if piston bore work will done perfectly what point to be taken care?
          *is require to increase head gasket thickness or it will sustain those oversize kit?
          *and if require to reduce compression ratio how much thou should add in head gasket??
          *since head gasket are standard in size how could increase thickness?

          again thanks PSR and Shreeram sir for valuable suggestion
          pics of exaust valve and block kit.

          Comment

          • #13340
            Originally posted by Ramborider View Post
            i didnt redlined it so coudnt got idea about it,sorry for it :P i dont like to keep WOT in neutral



            i opened piston block head,and observed very light lines on block and exaust valve is bent and leak!i know a guy who is expert in honing,boring.got Usha piston of 20number(20thou bigger than standard)and he will complete block honing tomorrow.

            *if piston bore work will done perfectly what point to be taken care?
            *is require to increase head gasket thickness or it will sustain those oversize kit?
            *and if require to reduce compression ratio how much thou should add in head gasket??
            *since head gasket are standard in size how could increase thickness?

            again thanks PSR and Shreeram sir for valuable suggestion
            pics of exaust valve and block kit[ATTACH=CONFIG]90446[/ATTACH][ATTACH=CONFIG]90447[/ATTACH].
            Option 1:- Reboring job requires lot of attention and the equipment used matters alot. Size 20 which you say, I guess in 4 stroke world is 2nd oversize. Mech might have suggested to go for size 20 instead of 10, could be the bore/cylinder might have got oval in due course of time and size 10 might not blend in to make it perfect circle. Perfect reboring will hold good as stock bore and lasts longer. If not, after some run, will emit bore noise that no one wants to hear. You'll need to find out the expert in doing these machinery jobs and reboring jobs carried by CNC machines is regarded best. Why? Because the clearance can be set at microns as recommended by factory. Atleast I know where to get the rebore job done in Bangalore.

            Option 2:- Go in for new bore ONLY if you don't have much time, knowledge, not convinced and want complete peace of mind.

            PSR Sir and other seniors may share your thoughts and add if I'm missing any here.
            RX100 1996 | Karizma 2004 | Karizma-R 2011 | RXZ 1999 | RX 135 1998 | RX 100 1993 | CBF150 2005 - 2011

            2012 - Meghamalai | Kuttralam | 2011 Ooty | Munnar | 2010 Point Calimere | Horsley Hills | Yercaud

            Comment

            • #13341
              Originally posted by Ramborider View Post
              [ATTACH=CONFIG]90446[/ATTACH][ATTACH=CONFIG]90447[/ATTACH].
              I am unable to view/open the attachment,please upload the pictures on some image hosting website such as picasa and post the link here.

              Comment

              • #13342
                today, when i change the air filter for my zma then i saw a thing that a little amount of oil is deposit in air filter casing.
                please see the picture below:
                Click image for larger version Name: DSC02494.jpg Views: 1 Size: 94.1 KB ID: 1836969
                is there any parts has been fault or something happens??
                please excuse......
                Racing is not about Bikes, it's about Rider's Focus, Commitment, Dedication and Attitude.

                Comment

                • #13343
                  -: Changing OE Pilot Lamp to LED Pilot Lamp :-
                  Attached Files
                  Racing is not about Bikes, it's about Rider's Focus, Commitment, Dedication and Attitude.

                  Comment

                  • #13344
                    Karizma/Karizma R

                    Originally posted by Divya Sharan View Post
                    Wrong question!

                    Change tire when:-
                    1. The tire treads go bald.
                    2. There is uneven wear of the tire (due to improper fit earlier)
                    3. The tire compound hardens due to non use for long.
                    4. The tire leaks air from the side walls due to compound breakdown.
                    5. There are deep punctures and the tire cannot be termed safe after repair.
                    6. Tire sidewalls are torn.
                    7. Tire slips on all sort of tarmac because there are no grooves left.
                    And many more such reasons.

                    This may happen @10k kms or 30k kms.
                    Assuming that you're running on stock tires, front doesn't need replacement till 35k kms (approx) and rear till 30k kms being hard compound. - In ideal conditions.
                    Thanks mate. The total Kms is 21000.

                    Comment

                    • #13345
                      Karizma/Karizma R

                      Originally posted by Subhojit Palchowdhury View Post
                      -: Changing OE Pilot Lamp to LED Pilot Lamp :-
                      Looking nice going to purchase soon. From where and how much ?

                      Comment

                      • #13346
                        Originally posted by NIGHTMARE View Post
                        Looking nice going to purchase soon. From where and how much ?
                        I purchased it at my nearest parts shop (Howrah, West Bengal). And it's cost 12 rupees each.
                        Racing is not about Bikes, it's about Rider's Focus, Commitment, Dedication and Attitude.

                        Comment

                        • #13347
                          Originally posted by Subhojit Palchowdhury View Post
                          today, when i change the air filter for my zma then i saw a thing that a little amount of oil is deposit in air filter casing.
                          please see the picture below:
                          is there any parts has been fault or something happens??
                          please excuse......
                          It is normal.
                          When Was The Last Time,You Did Something For The First Time.

                          Comment

                          • #13348
                            Originally posted by Vishakh View Post
                            But sir one doubt. I have noticed slight white smoke coming out of new bikes at the showroom when the showroom guys rev it recklessly. What could be the cause?.
                            A new bore is not a set bore and so some leak through the rings at high RPM is to be expected....this leak sets and the smoke also stops after proper run in...If the smoke is seen after run in period, then the bore and Piston rings are Kaput....
                            Originally posted by Ramborider View Post
                            i didnt redlined it so coudnt got idea about it,sorry for it :P i dont like to keep WOT in neutral



                            i opened piston block head,and observed very light lines on block and exaust valve is bent and leak!i know a guy who is expert in honing,boring.got Usha piston of 20number(20thou bigger than standard)and he will complete block honing tomorrow.

                            *if piston bore work will done perfectly what point to be taken care?
                            *is require to increase head gasket thickness or it will sustain those oversize kit?
                            *and if require to reduce compression ratio how much thou should add in head gasket??
                            *since head gasket are standard in size how could increase thickness?

                            again thanks PSR and Shreeram sir for valuable suggestion
                            pics of exaust valve and block kit[ATTACH=CONFIG]90446[/ATTACH][ATTACH=CONFIG]90447[/ATTACH].
                            Your attachments are not valid.....and can not be seen..
                            If any one of the valve is bent, then Timing chain & Chain Tensioner are to be changed ...only a slack in the timing chain could have lead to wrong Valve timing leading to valve hitting the Piston and getting bent.
                            Check your Cam also for damage..
                            1. If the bore & piston work of reboring is done properly,then no need to worry and precautions to e taken,EXCEPT NORMAL RUN IN.
                            2. No need to increase head gasket thickness since the increase in compression due to overbore is minimal going up by only 1st to 4 th oversize does not warrant it.
                            3. Like I said no need to reduce compression ratio since the increase is minimal and within the design parameters of the engine.
                            4. Same answer for your 4th point as above.
                            Last edited by psr; 01-10-2013, 09:36 PM.
                            When Was The Last Time,You Did Something For The First Time.

                            Comment

                            • #13349
                              Originally posted by psr View Post


                              Your attachments are not valid.....and can not be seen..
                              If any one of the valve is bent, then Timing chain & Chain Tensioner are to be changed ...only a slack in the timing chain could have lead to wrong Valve timing leading to valve hitting the Piston and getting bent.
                              Check your Cam also for damage..
                              1. If the bore & piston work of reboring is done properly,then no need to worry and precautions to e taken,EXCEPT NORMAL RUN IN.
                              2. No need to increase head gasket thickness since the increase in compression due to overbore is minimal going up by only 1st to 4 th oversize does not warrant it.
                              3. Like I said no need to reduce compression ratio since the increase is minimal and within the design parameters of the engine.
                              4. Same answer for your 4th point as above.
                              Originally posted by SriramEfunds View Post
                              Option 1:- Reboring job requires lot of attention and the equipment used matters alot. Size 20 which you say, I guess in 4 stroke world is 2nd oversize. Mech might have suggested to go for size 20 instead of 10, could be the bore/cylinder might have got oval in due course of time and size 10 might not blend in to make it perfect circle. Perfect reboring will hold good as stock bore and lasts longer. If not, after some run, will emit bore noise that no one wants to hear. You'll need to find out the expert in doing these machinery jobs and reboring jobs carried by CNC machines is regarded best. Why? Because the clearance can be set at microns as recommended by factory. Atleast I know where to get the rebore job done in Bangalore.

                              Option 2:- Go in for new bore ONLY if you don't have much time, knowledge, not convinced and want complete peace of mind.

                              PSR Sir and other seniors may share your thoughts and add if I'm missing any here.
                              Thakyou verymuch Psr and Shreeram sir,you have cleared my doubt.as i had changed tensioner and valve timing was proper while dismantling as very slight bent was there which could be seen on lathe.had completed reboring worktoday.now only need to worry about PROPER RUN In for Reboring kit,as my daily running is 60km PURE highway commute its hard to ride stop and go situation its idealy ride on top gear and steady rpm is that will hurt run in?,it would be great to know how to run in properly rebore engine.
                              as i had kept bike idle rpm for 2hours,very low sound of bore is coming,lathe guy told it will reduce as its due to some tight clearance in piston and bore.he kept 1/2thou clearance between piston and block as it will increase as proper run in,he also told company generaly kept slightly more clearance between piston and block as it will prevent piston seize.
                              Last edited by Ramborider; 01-11-2013, 12:20 AM. Reason: some missing points

                              Comment

                              • #13350
                                Originally posted by Ramborider View Post
                                Thakyou verymuch Psr and Shreeram sir,you have cleared my doubt.as i had changed tensioner and valve timing was proper while dismantling as very slight bent was there which could be seen on lathe.had completed reboring worktoday.now only need to worry about PROPER RUN In for Reboring kit,as my daily running is 60km PURE highway commute its hard to ride stop and go situation its idealy ride on top gear and steady rpm is that will hurt run in?,it would be great to know how to run in properly rebore engine.
                                as i had kept bike idle rpm for 2hours,very low sound of bore is coming,lathe guy told it will reduce as its due to some tight clearance in piston and bore.he kept 1/2thou clearance between piston and block as it will increase as proper run in,he also told company generaly kept slightly more clearance between piston and block as it will prevent piston seize.
                                Here is the complete Bore Piston dimension and clearance data...thanks to Ashwinprakas

                                When Was The Last Time,You Did Something For The First Time.

                                Comment

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