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Random Questions regarding the RX series

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  • #451
    Re: Random Questions regarding the RX series

    Originally posted by kusmaker View Post
    If you can get cylinder sleeved perfectly then why not go for it, else i wills say purchase new block.
    Thanks for the Suggestion kusmaker, i got it sleeved to second oversize and it seems the work is perfectly done, bike is running perfectly fine now, following are my queries if anyone can address:
    1 I found a slight drop in a pickup , mechanic said after run-in period there will be slight increase in pickup.
    2 Engine is heating very fast, had a ride of 16kms to the office with a slight traffic speed below 45. engine is heating very fast. is this normal after rebore [again mechanic said it will happen for initial 300-400 kms until its tuned after run-in]

    Comment

    • #452
      Re: Random Questions regarding the RX series

      Originally posted by classic.infinity View Post
      Thanks for the Suggestion kusmaker, i got it sleeved to second oversize and it seems the work is perfectly done, bike is running perfectly fine now, following are my queries if anyone can address:
      1 I found a slight drop in a pickup , mechanic said after run-in period there will be slight increase in pickup.
      2 Engine is heating very fast, had a ride of 16kms to the office with a slight traffic speed below 45. engine is heating very fast. is this normal after rebore [again mechanic said it will happen for initial 300-400 kms until its tuned after run-in]

      Congrats man for the successful resleeving (can you pls mention that what was the cost of total job and brand of sleeve), now coming to your query of slight drop in pickup, yes it's fairly common as the parts are fresh and tight, once the parts will polish themselves you will feel gain in pickup, engine will heat fast again due to the friction between parts, what's the ratio of 2t oil that you are using, normally 20ml to a litre of petrol is used, but after reboring or sleeving a little bit of more 2t oil should be used say 30ml to a litre, as because you are riding in jam situation plus i assume atmosphere would also be hot in mahahrashtra at this time of the year, hence you are feeling more heat ,pretty normal not to worry buddy, a few little things in the end just avoid jams if you can ,take some other route, don't ride constantly on same speed try to wary the speed, plus change the engine oil after 900kms of the rebuild, and use good 2t oil, you can use yamaha's own 2t oil.

      Comment

      • #453
        Re: Random Questions regarding the RX series

        Thank you buddy, sleeves and rebore costed me 1200 bucks, I don't know the brand of sleeves but lathe guy said those are good ones.
        Regarding 2t oil, I use premix Castrol 2t, currently running rich approximate 50-60ml per litre. Weather here is hot.
        Riding back to home in evening was calm not so much heat.

        Sent from my GT-I9103 using xBhp Connect mobile app

        Comment

        • #454
          Re: Random Questions regarding the RX series

          Originally posted by classic.infinity View Post
          Thanks for the Suggestion kusmaker, i got it sleeved to second oversize and it seems the work is perfectly done, bike is running perfectly fine now, following are my queries if anyone can address:
          1 I found a slight drop in a pickup , mechanic said after run-in period there will be slight increase in pickup.
          2 Engine is heating very fast, had a ride of 16kms to the office with a slight traffic speed below 45. engine is heating very fast. is this normal after rebore [again mechanic said it will happen for initial 300-400 kms until its tuned after run-in]
          are you running a full sleeve or half sleeve
          Kawasaki KB100/enduro/125 substitute parts list http://www.xbhp.com/talkies/508615-post105.html

          Comment

          • #455
            Re: Random Questions regarding the RX series

            Originally posted by classic.infinity View Post
            Thank you buddy, sleeves and rebore costed me 1200 bucks, I don't know the brand of sleeves but lathe guy said those are good ones.
            Regarding 2t oil, I use premix Castrol 2t, currently running rich approximate 50-60ml per litre. Weather here is hot.
            Riding back to home in evening was calm not so much heat.

            Sent from my GT-I9103 using xBhp Connect mobile app
            You do 50-60ml of 2T oil and you say you are running rich ?
            Would like to tell you buddy that you are running really lean.

            For running in, 40ml to a litre is recommended.
            Beyond this you are just leaning the mixture.

            Sent from my SM-T311 using xBhp Connect mobile app
            Stop at RED and go at GREEN !!!

            Comment

            • #456
              Re: Random Questions regarding the RX series

              Originally posted by kb100 View Post
              are you running a full sleeve or half sleeve
              Buddy i dont know the technical terms you used full / half sleeves :P

              ----consecutive posts auto-merged-----

              Originally posted by augmentor View Post
              You do 50-60ml of 2T oil and you say you are running rich ?
              Would like to tell you buddy that you are running really lean.

              For running in, 40ml to a litre is recommended.
              Beyond this you are just leaning the mixture.

              Sent from my SM-T311 using xBhp Connect mobile app
              ohh is it ? then should i go for 40ml per litre Mixture, I am not pretty much sure , mechanic said for initial 200 kms add 50-60ml per litre and that might be the reason of heavy smoke. thanks augmentor i will try the concentration you mentioned

              Comment

              • #457
                Re: Random Questions regarding the RX series

                Originally posted by classic.infinity View Post
                Buddy i dont know the technical terms you used full / half sleeves :P

                ----consecutive posts auto-merged-----



                ohh is it ? then should i go for 40ml per litre Mixture, I am not pretty much sure , mechanic said for initial 200 kms add 50-60ml per litre and that might be the reason of heavy smoke. thanks augmentor i will try the concentration you mentioned
                Key points- never add too much 2T oil. Stick to 40ml/ liter during running in and once the running in is done, switch to 30ml/ liter.
                If you want to go rich, go by raising the needle in the carb and by no other means.
                Stop at RED and go at GREEN !!!

                Comment

                • #458
                  Re: Random Questions regarding the RX series

                  Originally posted by classic.infinity View Post
                  Buddy i dont know the technical terms you used full / half sleeves :P
                  how thick was the sleeve used was it a thick sleeve or a thin sleeve
                  Kawasaki KB100/enduro/125 substitute parts list http://www.xbhp.com/talkies/508615-post105.html

                  Comment

                  • #459
                    Re: Random Questions regarding the RX series

                    Originally posted by augmentor View Post
                    Key points- never add too much 2T oil. Stick to 40ml/ liter during running in and once the running in is done, switch to 30ml/ liter.
                    If you want to go rich, go by raising the needle in the carb and by no other means.
                    Ok i will do that, what can be considered as ideal run-in period? and after run-in period what needs to be done except for oil change?

                    Comment

                    • #460
                      Re: Random Questions regarding the RX series

                      Originally posted by augmentor View Post
                      Key points- never add too much 2T oil. Stick to 40ml/ liter during running in and once the running in is done, switch to 30ml/ liter.
                      If you want to go rich, go by raising the needle in the carb and by no other means.

                      Generally when one goes for rebore or for new engine block mechanics always tune the pump for more 2t flowing which results in dense smoke and filling of exhaust with wasted oil, that's one key information you have shared Mr. augmentor, exactly the way a newbore should be treated, one think i would like to know till how many kms a completely filled 2t oil tank should last, if the 2t oil is mixing with the ration of 20 to 30 ml/ltr.

                      Comment

                      • #461
                        Re: Random Questions regarding the RX series

                        Originally posted by kusmaker View Post
                        how many kms a completely filled 2t oil tank should last, if the 2t oil is mixing with the ration of 20 to 30 ml/ltr.
                        Simple, do a reverse calculation with your bike FE & 2T mix ratio
                        FE : 35kmpl
                        2T mix : 30ml/lit

                        1 litre 2T will be consumed with 33.33 litres of Petrol ==> 33.33*35=1166.67km
                        Nissan Sunny XVD | Toyota Corolla | Suzuki Ritz
                        Yamaha RX135 4s-->5s | Yamaha RX100 | Yamaha RXG | Yamaha Ray | TVS Scooty Streak | Duke 390
                        2000 Yamaha RX135 5s (Sold) | 1998 Yamaha RX135 4s (Sold) | 1997 Yamaha RXG (Sold) | 1994 Yamaha RX100 (Sold)

                        Comment

                        • #462
                          Re: Random Questions regarding the RX series

                          Originally posted by Mr.Boss View Post
                          Simple, do a reverse calculation with your bike FE & 2T mix ratio
                          FE : 35kmpl
                          2T mix : 30ml/lit

                          1 litre 2T will be consumed with 33.33 litres of Petrol ==> 33.33*35=1166.67km
                          This calculation has a variation.
                          The oil injection method does not keep the oil flow constant like the pre-mix method.

                          Say for example you are doing pre-mix of 30:1, the engine at all times get oil only at a constant rate of the ration of pre-mix.
                          Which means irrespective of the throttle position the engine only gets what's been pre-mixed in the tank.

                          Whereas if you go as per the oil injection method, the amount of oil injected into the carb varies WRT the throttle position.
                          The more you twist the throttle the more oil is pumped in.
                          So this makes difference to your static calculations which has the amount of oil consumed by the engine per part of fuel as "constant".

                          Ideally I would say 950 to 980 kms is the ideal one full oil tank (1ltr) oil consumption.

                          This is why the oil injection method is the best way to keep the engine healthy, because it gives what the engine wants at any moment.
                          Well it depends upon perception whether one wants to ride on premix or auto lube. (I myself do pre-mix lol , feels safe)

                          Cheers
                          Stop at RED and go at GREEN !!!

                          Comment

                          • #463
                            Re: Random Questions regarding the RX series

                            Originally posted by augmentor View Post
                            This calculation has a variation.
                            The oil injection method does not keep the oil flow constant like the pre-mix method.

                            Say for example you are doing pre-mix of 30:1, the engine at all times get oil only at a constant rate of the ration of pre-mix.
                            Which means irrespective of the throttle position the engine only gets what's been pre-mixed in the tank.

                            Whereas if you go as per the oil injection method, the amount of oil injected into the carb varies WRT the throttle position.
                            The more you twist the throttle the more oil is pumped in.
                            So this makes difference to your static calculations which has the amount of oil consumed by the engine per part of fuel as "constant".

                            Ideally I would say 950 to 980 kms is the ideal one full oil tank (1ltr) oil consumption.

                            This is why the oil injection method is the best way to keep the engine healthy, because it gives what the engine wants at any moment.
                            Well it depends upon perception whether one wants to ride on premix or auto lube. (I myself do pre-mix lol , feels safe)

                            Cheers

                            Initially i calculated the consumption of 2t the way Mr. boss has mentioned, my bike sometimes give me the average of 48 and sometimes gives me the average of 52, so the calculation was coming some 1400kms on one tank of 2t, recently my mechanic has tuned the 2t pump according to the AFR, but after this recent tuning i felt the amount of 2t has increased,so i was trying to know that for how many kms should 1litre 2t must last.When i last filled bike 2t tank with full 1ltr 2t oil the odo reading was xx104, and current reading is xx919, and almost half of the 2t has been pumped into the engine and half is still left, so according to your suggestion my bike consumption is fine then because it's 800 kms and still half of the 2t is remaining.

                            Thanks for the info, but i would like to know why are you not using 2t oil through the pump.(hope you don't mind).
                            Thanks Mr. Boss for the calculation procedure.
                            Last edited by kusmaker; 05-22-2014, 08:20 PM.

                            Comment

                            • #464
                              Re: Random Questions regarding the RX series

                              [MENTION=26930]kb100[/MENTION] I believe a thick one. What's the significance, please throw some light.

                              Sent from my GT-I9103 using xBhp Connect mobile app
                              Last edited by classic.infinity; 05-23-2014, 01:50 AM.

                              Comment

                              • #465
                                Re: Random Questions regarding the RX series

                                Thanks augmentor, superb explanation. I used to keep wondering why Yamaha have given 2T tank as one can always premix, I too premix :P

                                Sent from my GT-I9103 using xBhp Connect mobile app

                                Comment

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