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Royal Enfield Thunderbird 500

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  • #676
    Re: Royal Enfield Thunderbird 500

    Originally posted by RISHIS View Post
    Hi guys , Its been almost 3 months with the custody of Tb500 , No major issues as such except for the normal ones.
    But as for today , there is an issue.
    Thee idling RPM is well beyond 1200-1300 ,
    Any suggestions on how to deal with the same..? Any suggestions will be much appreciated , Thank you
    There is a small screw under the tank that can be used to increase/decrease the idling rpm in pulsar. But I am not sure about the tb500. May be Enfield owners can throw some light on it..
    If things are not going right. Go left

    Comment

    • #677
      Re: Royal Enfield Thunderbird 500

      A question open to everyone. How confident you would be to take bird on tours with stretches of no help.

      Comment

      • #678
        Re: Royal Enfield Thunderbird 500

        Originally posted by RISHIS View Post
        Hi guys , Its been almost 3 months with the custody of Tb500 , No major issues as such except for the normal ones.
        But as for today , there is an issue.
        Thee idling RPM is well beyond 1200-1300 ,
        Any suggestions on how to deal with the same..? Any suggestions will be much appreciated , Thank you
        Check a few pages back, I had the same issue. Excessive air getting into the air inlet chamber through a leak in the hose, get it checked.

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

        Originally posted by pundrick View Post
        A question open to everyone. How confident you would be to take bird on tours with stretches of no help.
        Well with a puncture repair kit and a few necessary cables(ABC), pretty confident I would say.

        Comment

        • #679
          Re: Royal Enfield Thunderbird 500

          Click image for larger version Name: DSCN4290[1].jpg Views: 2 Size: 109.9 KB ID: 1879008

          At Alibaug Beach
          Ride Hard !!! Ride Safe!!! Enjoy every moment on your machine !!! Cheers....

          Comment

          • #680
            Re: Royal Enfield Thunderbird 500

            Man, the waiting period seems really long. I don't know how people managed to wait for a year to get their bulls...

            Sent from my GT-N7100 using xBhp Connect mobile app
            Be the change you want to see in other Riders!

            Comment

            • #681
              Re: Royal Enfield Thunderbird 500

              Originally posted by Sharrrrrrad View Post
              Man, the waiting period seems really long. I don't know how people managed to wait for a year to get their bulls...

              Sent from my GT-N7100 using xBhp Connect mobile app
              Today, I went with my friend to test ride and book a Thunderbird500. My question is what role does the choke have on a EFI bike like TB500?

              Comment

              • #682
                Re: Royal Enfield Thunderbird 500

                I don't know. Can any expert shed some light...

                Sent from my GT-N7100 using xBhp Connect mobile app
                Be the change you want to see in other Riders!

                Comment

                • #683
                  Re: Royal Enfield Thunderbird 500

                  Originally posted by AmitRavi07 View Post
                  what role does the choke have on a EFI bike like TB500?
                  This is what my Thunderbird 500 owner's manual says on the usage of choke:

                  Click image for larger version Name: Choke.jpg Views: 1 Size: 53.2 KB ID: 1879864
                  ---------------------------------------------------------------------------------------
                  ROYAL ENFIELD THUNDERBIRD 500 TWILIGHT [FROM 15 APRIL 2013]

                  Comment

                  • #684
                    Re: Royal Enfield Thunderbird 500

                    Originally posted by AmitRavi07 View Post
                    Today, I went with my friend to test ride and book a Thunderbird500. My question is what role does the choke have on a EFI bike like TB500?
                    From the classic 500 workshop manual.

                    MANUAL BI STARTER
                    Located in the throttle body and operated manually through a lever on the handle bar LH.
                    When the lever is pulled down, a cable pulls up the spring loaded piston in the throttle
                    body.
                    Helps in providing additional air into the engine during cold start, for better idling RPM,
                    till the engine operating temperature is attained.

                    Comment

                    • #685
                      Re: Royal Enfield Thunderbird 500

                      Yeah, even if it's EFI. bike would still need air for combustion right. M going with ground basics
                      Be the change you want to see in other Riders!

                      Comment

                      • #686
                        Re: Royal Enfield Thunderbird 500

                        The point here being that the EFI itself monitors the amount of air to be let in, hence eliminating the need for a choke. Same way as we don't have any in cars.

                        Sent from my GT-I9003 using Tapatalk

                        Comment

                        • #687
                          Re: Royal Enfield Thunderbird 500

                          And doesn't choke actually cut off the air supply rather than letting in excess air, creating a richer air to fuel mixture

                          Sent from my GT-I9003 using Tapatalk

                          Comment

                          • #688
                            Re: Royal Enfield Thunderbird 500

                            Originally posted by paradoxx View Post
                            And doesn't choke actually cut off the air supply rather than letting in excess air, creating a richer air to fuel mixture

                            Sent from my GT-I9003 using Tapatalk
                            As far as I know the choke on older bikes affected in less air for combustion, but, later the choke was modified to increase fuel supply to carb, effectively resulting in rich fuel mixture. Since an EFI bike already compensates for choke by monitoring the engine and adjusting the air-fuel mixture, it doesn't make sense for a manual choke lever, hence my query.
                            Last edited by AmitRavi07; 04-28-2014, 11:44 PM.

                            Comment

                            • #689
                              Re: Royal Enfield Thunderbird 500

                              Originally posted by AmitRavi07 View Post
                              As far as I know the choke on older bikes affected in less air for combustion, but, later the choke was modified to increase fuel supply to carb, effectively resulting in rich fuel mixture. Since an EFI bike already compensates for choke by monitoring the engine and adjusting the air-fuel mixture, it doesn't make sense for a manual choke lever, hence my query.
                              Apparently this kind of choke is found in some harley's, victory, suzuki, honda's too. Mostly old model bikes with early fuel injection techniques.

                              From another forum:
                              "It's a manually-operated IACV (Idle air control valve). A cheaper alternative to a motorised valve. "

                              So in carb model choke helps in input more fuel and in FI more air. From the discussions in various forums choke in Fi may be needed in extreme cold conditions only.
                              Guessing RE did some cost cutting in using latest generation FI technology.

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

                              Originally posted by AmitRavi07 View Post
                              As far as I know the choke on older bikes affected in less air for combustion, but, later the choke was modified to increase fuel supply to carb, effectively resulting in rich fuel mixture. Since an EFI bike already compensates for choke by monitoring the engine and adjusting the air-fuel mixture, it doesn't make sense for a manual choke lever, hence my query.
                              Apparently this kind of choke is found in some harley's, victory, suzuki, honda's too. Mostly old model bikes with early fuel injection techniques.

                              From another forum:
                              "It's a manually-operated IACV (Idle air control valve). A cheaper alternative to a motorised valve. "

                              So in carb model choke helps in input more fuel and in FI more air. From the discussions in various forums choke in Fi may be needed in extreme cold conditions only.
                              Guessing RE did some cost cutting in using latest generation FI technology.

                              Comment

                              • #690
                                Re: Royal Enfield Thunderbird 500

                                I don't know much about this topic but was expecting some goof up from RE.

                                Sent from my GT-N7100 using xBhp Connect mobile app
                                Be the change you want to see in other Riders!

                                Comment

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