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Karizma/Karizma R Ownership Experience

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  • #18001
    Re: Karizma/Karizma R Ownership Experience

    Originally posted by Saleh Talha View Post
    Guys i found one more issue in my ZMA

    In 2nd gear when trying to increase the relevant speed after reducing the speed for bumping the speed breaker or for some other reason engine logs too much and the speed is not increasing suddenly but takes some time to get normal.
    Guys pls provide your valuable response for the above issue as i am going for the maintenance of valves day after tomorrow.

    Thank you

    Comment

    • #18002
      Re: Karizma/Karizma R Ownership Experience

      Originally posted by rreneav1987 View Post
      If the engine heats up, then it should be the problem with clutch plates.. Like you suggested..
      I've changed the clutch plates today

      Performance improved but not at satisfaction level

      Bike pickup improved lil bit but the speed gaining issue is still harrasing me. After reaching to 60kmph bike does not reaching easily upto 80kmph , its vibrates a lot and also heats a lot.

      I am attaching old clutch plates pic here.

      Please provide valuable response so that my bike original performance returns.

      Thank you.
      Attached Files

      Comment

      • #18003
        Re: Karizma/Karizma R Ownership Experience

        Originally posted by Divya Sharan View Post
        Just hard shifting doesn't mean that clutch plates are bad.
        When your bike's speed doesn't increase relative to the RPM, it is time to look at clutch (and pressure) plates.

        Just to be sure, do the following things:
        In 4th gear, 3000 RPM should be 39 kmph, 4000 RPM should be 52 kmph, 5000 RPM should be 65 kmph (13 kmph per 1000 revs in the powerband).
        In 5th gear, 3000 RPM should be 45-48 kmph, 4000 RPM should be 60-64 kmph, 5000 RPM should be 76-80 kmph (15-16 kmph per 1000 revs in the powerband).

        If the figures on your bike are off by a noticeable margin, it is time to change clutch plates.



        Are the tappets set correct?
        Both inlet and exhaust clearances must be 0.1mm and they must be set with a feeler gauge and not by hand!
        Sir, today my bike's clutch plates have been changed, but i didnt get satisfaction perfectly.

        Still bikes vibrates a lot to reach upto 80+ speed

        Heating problem is still present though the oil has done only 500 kms ( Heat is feeled only in 6 kms )

        In 2nd gear at 1500+ RPM when trying to increase the bike speed after bumping the speed breaker, bikes logs first till the RPM reaches upto 2100+ and then it gets normal.

        Today i have tested the bike's speed according to the reference margins provided by you. Here are the results.

        In 4th gear
        At 3000 RPM speed =40 Kmph
        At 4000 RPM Speed =52 Kmph
        At 5000 RPM Speed =65 Kmph

        In 5th gear
        At 3000 RPM speed =45 Kmph
        At 4000 RPM Speed =62 Kmph
        At 5000 RPM Speed =80 Kmph
        At 5500 RPM Speed =85+ Kmph

        Please provide your suggestions in order to regain the actual required performance.

        Comment

        • #18004
          Re: Karizma/Karizma R Ownership Experience

          Originally posted by Saleh Talha View Post
          Sir, today my bike's clutch plates have been changed, but i didnt get satisfaction perfectly.

          Still bikes vibrates a lot to reach upto 80+ speed

          Heating problem is still present though the oil has done only 500 kms ( Heat is feeled only in 6 kms )

          In 2nd gear at 1500+ RPM when trying to increase the bike speed after bumping the speed breaker, bikes logs first till the RPM reaches upto 2100+ and then it gets normal.
          Your carburetor needs tuning. Your bike is running lean. Post a pic of the spark plug from 2-3 different angles.
          You need to set the Air Fuel Ratio with 3 to 3.5 turns of the screw. Take it to a good mech, if you're not aware of how to do it.

          Originally posted by Saleh Talha View Post
          Today i have tested the bike's speed according to the reference margins provided by you. Here are the results.

          In 4th gear
          At 3000 RPM speed =40 Kmph
          At 4000 RPM Speed =52 Kmph
          At 5000 RPM Speed =65 Kmph

          In 5th gear
          At 3000 RPM speed =45 Kmph
          At 4000 RPM Speed =62 Kmph
          At 5000 RPM Speed =80 Kmph
          At 5500 RPM Speed =85+ Kmph
          This is perfect!
          And please don't call me sir.
          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
          Hero Moto Corp Bikes' Parts RE STD 350 Wiring Diagram (CI) Service Manual - Classic 350/500
          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

          • #18005
            Re: Karizma/Karizma R Ownership Experience

            Originally posted by Saleh Talha View Post
            Still bikes vibrates a lot to reach upto 80+ speed

            Heating problem is still present though the oil has done only 500 kms ( Heat is feeled only in 6 kms )

            Please provide your suggestions in order to regain the actual required performance.
            Does your cold idle rpm and hot idle rpm vary by 5-600rpm ?

            That is morning start idle : 1200
            Afternoon , after drive idle : 16-1700 ?

            Is it similar to this ?
            Carb Tuning made easy (Thanks Sibun !)

            Comment

            • #18006
              Re: Karizma/Karizma R Ownership Experience

              Originally posted by RohIIT View Post
              Does your cold idle rpm and hot idle rpm vary by 5-600rpm ?

              That is morning start idle : 1200
              Afternoon , after drive idle : 16-1700 ?

              Is it similar to this ?
              In Morning idle RPM is 1150 and the bike seems running smooth.
              After riding it for few kms (5-6 kms) Engine gets little noisy and emanates heat (impossible to touch by hand) with the rpm rise little (1250 RPM).

              Comment

              • #18007
                Re: Karizma/Karizma R Ownership Experience

                Originally posted by Saleh Talha View Post
                In Morning idle RPM is 1150 and the bike seems running smooth.
                After riding it for few kms (5-6 kms) Engine gets little noisy and emanates heat (impossible to touch by hand) with the rpm rise little (1250 RPM).
                I am beginning to wonder now that there is no problem with the bike. Fuel contamination could be the reason like water in the fuel tank or adulterated petrol or rusting. Try switching to the Rimula oil and see if it helps with the heating issue. Or like everyone else is suspecting - carb might be the culprit. Please get it checked and also the jets.
                Everybody has their own version of TRUTH!!!!!!

                Comment

                • #18008
                  Re: Karizma/Karizma R Ownership Experience

                  Originally posted by Saleh Talha View Post
                  In Morning idle RPM is 1150 and the bike seems running smooth.
                  After riding it for few kms (5-6 kms) Engine gets little noisy and emanates heat (impossible to touch by hand) with the rpm rise little (1250 RPM).
                  I thought its lean mix at first, but idle conditions say otherwise. Post a pic of spark plug as i said earlier.
                  Only thing i can think of is wrong timing setting.
                  Carb Tuning made easy (Thanks Sibun !)

                  Comment

                  • #18009
                    Re: Karizma/Karizma R Ownership Experience

                    Originally posted by Divya Sharan View Post
                    Your carburetor needs tuning. Your bike is running lean. Post a pic of the spark plug from 2-3 different angles.
                    You need to set the Air Fuel Ratio with 3 to 3.5 turns of the screw. Take it to a good mech, if you're not aware of how to do it.
                    May be its running lean. I am attaching few pics of spark plug(ngk make) which i have replaced by champion make plug, but the problem still persist.

                    At time of removal of the plug, the tip surface was dry with ash type colour.

                    The images attached are taken by me today ( after 3 days of removal) therefore the whiteness on the tip, faded little bit.

                    Thanks for the support.
                    Attached Files
                    Last edited by Saleh Talha; 06-09-2016, 06:31 AM.

                    Comment

                    • #18010
                      Re: Karizma/Karizma R Ownership Experience

                      Originally posted by ajextreme View Post
                      I am beginning to wonder now that there is no problem with the bike. Fuel contamination could be the reason like water in the fuel tank or adulterated petrol or rusting. Try switching to the Rimula oil and see if it helps with the heating issue. Or like everyone else is suspecting - carb might be the culprit. Please get it checked and also the jets.
                      May be contaminated fuel lowering the performance.

                      How much Rimula oil cost? Right now there is veedol swift 10w30 fully synthetic oil in bike, and have done 650 kms.

                      May be carb needs perfect tuning because all the suggestions are pointing towards carb. tuning. I will let it checked by a mechanic.

                      Will you please explain me more about jets, i heard this word many time in this forum but i am not much familiar about it.

                      Thank you.

                      Comment

                      • #18011
                        Re: Karizma/Karizma R Ownership Experience

                        Originally posted by RohIIT View Post
                        I thought its lean mix at first, but idle conditions say otherwise. Post a pic of spark plug as i said earlier.
                        Only thing i can think of is wrong timing setting.
                        I've uploaded the pics of spark plug in previous post, please analyse the plug so that perfect carb. tuning can be done.

                        Regarding timing setting, I heard that, may be i am wrong, only if company setting is altered by mechanic than only there is probability of the misalignment of timing setting, My bike has crossed 59k kms and it is 7.5 yrs old, but till now its engine was not touched by the mechanic. But only for replacing clutch plates.

                        Thanks.

                        Comment

                        • #18012
                          Re: Karizma/Karizma R Ownership Experience

                          Originally posted by Saleh Talha View Post
                          I've uploaded the pics of spark plug in previous post, please analyse the plug so that perfect carb. tuning can be done.

                          Regarding timing setting, I heard that, may be i am wrong, only if company setting is altered by mechanic than only there is probability of the misalignment of timing setting, My bike has crossed 59k kms and it is 7.5 yrs old, but till now its engine was not touched by the mechanic. But only for replacing clutch plates.

                          Thanks.
                          This is good info, Saw the plug pics, When was the plug last replaced , It looks very worn out.
                          Also since engine is untouched, only thing that can go wrong is compression. Get your compression checked. If its any lower than 180 psi on gauge its loosing compression.
                          Carb Tuning made easy (Thanks Sibun !)

                          Comment

                          • #18013
                            Re: Karizma/Karizma R Ownership Experience

                            Originally posted by RohIIT View Post
                            If its any lower than 180 psi on gauge its loosing compression.
                            A quick query.

                            CR for old Karizma twins is 9.0:1.
                            CR for new Karizma twins is 9.6:1.

                            When converted to PSI, 9.0*14.7 = 132 approx.
                            When converted to PSI, 9.6*14.7 = 141 approx.

                            Isn't 180 an abnormally high a value on the gauge even with errors included. I feel 150-155 on the gauge will be a realistic figure.

                            Please clarify.
                            Last edited by Divya Sharan; 06-09-2016, 02:03 PM.
                            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
                            Hero Moto Corp Bikes' Parts RE STD 350 Wiring Diagram (CI) Service Manual - Classic 350/500
                            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

                            • #18014
                              Re: Karizma/Karizma R Ownership Experience

                              Originally posted by Divya Sharan View Post
                              A quick query.

                              CR for old Karizma twins is 9.0:1.
                              CR for new Karizma twins is 9.6:1.

                              When converted to PSI, 9.0*14.7 = 132 approx.
                              When converted to PSI, 9.6*14.7 = 141 approx.

                              Isn't 180 an abnormally high a value on the gauge even with errors included. I feel 150-155 on the gauge will be a realistic figure.

                              Please clarify.
                              PV^n is the law, here ideally we should take 1.4 if we are compressing air , but since its a fuel air mix, we take between 1.2-1.3 for value of n

                              that gives us Dynamic CR which is lower than static CR, so somewhere around 8 for example. that makes : 8^1.2 X 14.7 = 178psi
                              Carb Tuning made easy (Thanks Sibun !)

                              Comment

                              • #18015
                                Re: Karizma/Karizma R Ownership Experience

                                Originally posted by RohIIT View Post
                                PV^n is the law, here ideally we should take 1.4 if we are compressing air , but since its a fuel air mix, we take between 1.2-1.3 for value of n

                                that gives us Dynamic CR which is lower than static CR, so somewhere around 8 for example. that makes : 8^1.2 X 14.7 = 178psi
                                Ah, that clarifies it. All these days I thought we measured static psi. And I never considered AFR either.
                                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
                                Hero Moto Corp Bikes' Parts RE STD 350 Wiring Diagram (CI) Service Manual - Classic 350/500
                                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

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