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Yamaha YZF-R15

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  • hello guys, i am running joel's big bore and free flow exhaust. the bike is giving some serious vibes above 5.5k rpm. the vibes are more at the footpegs. what can be the probable causes?

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    • Originally posted by tanmay324 View Post
      hello guys, i am running joel's big bore and free flow exhaust. the bike is giving some serious vibes above 5.5k rpm. the vibes are more at the footpegs. what can be the probable causes?
      loose engine mounting bolts, un-lubed chain, oil change due...
      after monday and tuesday, even the calendar says WTF!!

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      • Originally posted by veyron999 View Post
        loose engine mounting bolts, un-lubed chain, oil change due...
        changed oil but not much effect. chain is lubed. getting some vibes while stationary too.

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        • ^^^ tighten the engine foundation bolts. Also check if all the body work fasteners are tightened.
          Only a biker knows why a dog sticks his head out of a car window.

          Multum in Parvo - Much in Little

          "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

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          • Originally posted by abhimanyu31 View Post
            ^^^ tighten the engine foundation bolts. Also check if all the body work fasteners are tightened.
            thanx abhimanyu. will check it. and by the way the vibes are lot less when i run the stock exhaust in place of ffe. any reason for this?

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            • guys , about two weeks ago i had a fall from my bike, no heavy damage to the bike but since then the front disc brakes are a bit jerky and i am not feeling confident while driving.
              can anyone tell whats causing this...

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              • the disc may have bent due to the accident...... check it with the svc people...

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                • Headlights replacement

                  Today i changed the stock 35/35 headlight bulbs with 60/55 on the both sides and gave a run for 10 mins which worked perfectly. Actually the 60/55 bulb belongs to my honda city car.
                  The housing was perfect, but will it drain the battery??
                  I have angel rings installed. will the temperature affect those rings??
                  What should i do to prevent battery drain??

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                  • Originally posted by gowthaman400 View Post
                    Today i changed the stock 35/35 headlight bulbs with 60/55 on the both sides and gave a run for 10 mins which worked perfectly. Actually the 60/55 bulb belongs to my honda city car.
                    The housing was perfect, but will it drain the battery??
                    I have angel rings installed. will the temperature affect those rings??
                    What should i do to prevent battery drain??
                    yes they may drain the battery at faster rate than stock bulbs. try not to use them while you are not in motion. switch them on only after you set off

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                    • Originally posted by gowthaman400 View Post
                      the disc may have bent due to the accident...... check it with the svc people...
                      the SVC guy told that the disk was fine , can there be any other reason
                      or should i show it to some local mech.

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                      • Originally posted by bprashant View Post
                        the SVC guy told that the disk was fine , can there be any other reason
                        or should i show it to some local mech.
                        How was the disc checked by the SVC? Was it just a visual check. If yes, then it is not adequate. If a disc is warped, it may not be noticeable by just a visual inspection. Ask the SVC to check the disc with a dial gauge.

                        One of the signs of a damaged disc is a juddering (pulsing) sensation. If you are getting such a sensation then it is very likely that the disc is warped. If all you are getting is a jerk when you apply the break, then check if there is play in the steering bearings. Also check if the fork braces and the triple clamps are tightened. Also check if the piston calipers are free. If they are sticking then too you will have the jerking phenomena.
                        Only a biker knows why a dog sticks his head out of a car window.

                        Multum in Parvo - Much in Little

                        "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

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                        • rear tyre

                          guys plz answer my querry...
                          i have posted this in tyres thread also, but didn't get any answers--

                          how is R15 rear tyre in terms of wet traction, wet braking, wet cornering, how is the overall grip in rains??

                          i am thinking to fit it in my P150, i believe the size will match it is 100/80-r17 is it? and it is Zapper-S. currently i am using R15 front tyre on my bike and very happy with its performance. pulsar stock tyre size for rear is 100/90, so sizewise it seems ok.
                          sigpic

                          Tyre Sizes _ Spark Plugs

                          Headlight Focus _ Fork Oils

                          All India xBhp Couple Riders Thread

                          Ashtavinayak + Shirdi
                          Purandar
                          Raigad
                          Dapoli
                          Aurangabad
                          Kaas Plateu & Thoseghar Waterfalls
                          Purandar

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                          • the grip is very good even on wet roads, its almost at par with pirelli's.
                            Go ahead and put it on your pulsar you wont regret it
                            Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!' -Hunter S. Thompson

                            Comment


                            • Originally posted by princesirohi View Post
                              guys plz answer my querry...
                              i have posted this in tyres thread also, but didn't get any answers--

                              how is R15 rear tyre in terms of wet traction, wet braking, wet cornering, how is the overall grip in rains??

                              i am thinking to fit it in my P150, i believe the size will match it is 100/80-r17 is it? and it is Zapper-S. currently i am using R15 front tyre on my bike and very happy with its performance. pulsar stock tyre size for rear is 100/90, so sizewise it seems ok.
                              as per my exp, wet grip is not very Good. Grip is only the best in well paved roads as its a soft compound. anything other than that like, gravel, wet, or even a little sand, you need to be careful. I fell hard 2 times while braking under wet/sandy conditions(maybe my skills are not matured enough). Got hurt the first time but gears saved me the next time. Thinking to opt for medium compounds for best of both worlds, I don't do much high speed cruising either, only occasionally.



                              RIDE SAFE

                              Comment


                              • i hav found the grip to be much better than most tires even in wet roads, but even with the best tires in the world you gotta be careful on wet roads and gravel
                                Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!' -Hunter S. Thompson

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