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Yamaha YZF-R15

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  • Originally posted by HotAntivirus View Post
    Hi guys, Yesterday I went to Jaipur with my friends and i tried to top my bike and the max I could get was 130 and a friend of mine with a r15 touched 139 on the same road.. I was fully crouched and I weigh 55 and my friend does the same..

    The bike was services less than 15 days ago.. and I have never touched more than 130 on my bike every time I have tried.. What can be the issue?
    Have you done any changes to the sprockets, again how old is your bike as compared to your friends?

    Comment


    • Originally posted by SilentKnight View Post
      Well assuming that you were on a long straight stretch , what RPM did u achieve 130 . Compare that with your friends .
      Chain slack , lubrication , tyre pressure , and amount of fuel left in the tank can also cause a decrease in speed .
      Check these again and try hitting the top speed .
      His chain was a bit tight, tyre pressure and fuel was same.. as we tanked up the bike and filled air before leaving for the trip.. We had around 4 Litres in the tank left..
      Originally posted by shrinathrao View Post
      Have you done any changes to the sprockets, again how old is your bike as compared to your friends?
      I have not done any changes to the bike but my friend doesnt have RVM's in his bike.. My friends bike is 5 months old and mine is 7 months old..
      Patience is something you admire in the driver behind you and scorn in the one ahead.

      Rishabh Sood Pictures
      | Candid Tales

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      • Has anyone tried NGK IRIDIUM Spark plugs on their R15 ?

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        • Originally posted by shrinathrao View Post
          Has anyone tried NGK IRIDIUM Spark plugs on their R15 ?
          yes i am using
          sigpicYES YAMAHA

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          • Originally posted by aditaya.chopra View Post
            yes i am using
            any differences overall ?

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            • Originally posted by shrinathrao View Post
              any differences overall ?
              ya timing improved but i am using only ngk sparkplug but looking for power cord
              sigpicYES YAMAHA

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              • Originally posted by aditaya.chopra View Post
                ya timing improved but i am using only ngk sparkplug but looking for power cord
                what with the power cord? is this thing extra and what difference it makes?

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                • recent pics

                  hi all, just wanted to share some of the recent shots of my beast...hope you like them....
                  :-)

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                  • Hey friends my bike's not revving up from 5k rpm what could be the problem...
                    please friends help me out....

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                    • Belt drive....

                      hi guys,i am asking this for the second time----can v use belt drive instead of chain drive?many bikes of higher cc capacities are using belt drive...y v all talk abt the things which are already avail in d bike???? let us try something diff.....our bike is totally diff from other bikes in our country,y v dont try something diff????also attached a pic.....sorry if have asked u guys anything wrong....
                      Last edited by Kabillan; 03-26-2011, 03:36 AM.

                      Comment


                      • Originally posted by gbsaint View Post
                        it helps modified bikes.and by mod,i mean full system freeflow exhaust,big bore etc etc,and not stickers and projector headlamps it helps by allowing u to increase the CO upto CO +30.
                        oh......! you are increasing the bore by how much?

                        Originally posted by jd666 View Post
                        The FID as mentioned works on finding any faults with all the sensors installed on the R15 ( i think there are 6 or 7 of them ), and it can test them for proper operation as well.

                        Yes if there is a difference in altitude, tuning the C0 ratio does help to get best performance from your machine. Think of it as a digital air-fuel screw. And the FID is the only tool that lets you set that.

                        This is because the R15 runs an open loop system. So there is no feedback from the exhaust with regards to the CO2 value in the burnt gases, that lets the ECU determine the best air-fuel ratio.

                        It has to be set manually like a carburettor, only difference is you use a digital tool to set it.

                        I had one for sale, sold it in mumbai. If anyone wants one, i can arrange for it.

                        EDit - if you are not happy with the C0 setting, you can always contact your regional service engineer from yamaha. They have one issued to them for this purpose.
                        there are 7 sensors to be exact....thanks for the info..this is my first time with a fuel injected bike.....how much does this kit cost?


                        Originally posted by Kabillan View Post
                        hi guys,i am asking this for the second time----can v use belt drive instead of chain drive?many bikes of higher cc capacities are using belt drive...y v all talk abt the things which are already avail in d bike???? let us try something diff.....our bike is totally diff from other bikes in our country,y v dont try something diff????also attached a pic.....sorry if have asked u guys anything wrong....
                        using a belt drive instead of a chain drive isnt an easy task. The belt has to be capable of withstanding high stresses.. (just imagine you replacing a chain with a belt drive) which means the gear box will need some redesign => increased costs. its not economically feasible plus belts come with their own problems- they tend to break, slip...one has to put in the quality and design to sustain it..... nothing wrong in asking
                        No its not about speed, its about turning and shifting those gears!

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                        • Originally posted by ashaq54 View Post
                          hi all, just wanted to share some of the recent shots of my beast...hope you like them....
                          :-)
                          nice! where was this pic taken?
                          No its not about speed, its about turning and shifting those gears!

                          Comment


                          • Originally posted by shrinathrao View Post
                            what with the power cord? is this thing extra and what difference it makes?
                            its a maximum performance silicon spark plug cord which helps in more power better combustion and improve performance
                            sigpicYES YAMAHA

                            Comment


                            • Originally posted by sundarvignesh View Post
                              nice! where was this pic taken?
                              thanks for liking the pics...these were taken at a place called Maowa Ghat near Dhaka, Bangladesh.

                              Comment


                              • Originally posted by adi.singh1992 View Post
                                Hey friends my bike's not revving up from 5k rpm what could be the problem...
                                please friends help me out....
                                When u say not revving up , do u mean its stalling at 5k or simply stopping at 5 ...
                                Livin in the REDLINE district ------------------

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