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Help diagnose the problem - Enfield Tbird

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  • #1

    Help diagnose the problem - Enfield Tbird

    Hi Riders,

    Offlate the mileage of my Tbird has gone down drastically. I seem to get only 28-30 kmpl in city conditions way down from 38-40 earlier. Also i am not able to hit speeds more than 80 kmph. If i push more than that bike seems to stall as it does when running dry or hitting reserve.

    I dont know much about the mechanics of the bike so wanted to see what the issue coule be before taking it to a mech.
    Ride hard or stay home
    Tags: None
  • #2
    Query approved.
    (Been There Done That) x 3.25

    Comment

    • #3
      Please give more details of the Thunderbird to ascertain the problem.

      1.How many KM has it run?
      2.Any modifications?
      3.Model of the Bullet?
      RE Thunderbird Since Jan 09 onwards
      Suzuki Zeus       Jan -Dec 08 -- Sold
      Honda Unicorn       Oct 06-Dec 08 -- Sold

      New edition : BSA Mach 19" 6 Speed-- Sold
      Schwinn Sporterra -- Up and running

      Comment

      • #4
        Get the carburettor float checked and the float needle replaced if possible. Also check the head for carbon build up.

        Before all this, make sure the Air-Fuel screw is tuned properly. A generic setting would be all the way in, and then about 2 - 2 1/2 turns out.


        My offerings to the gods of speed -

        - KTM Duke 200
        - Yamaha RXZ 5 speed


        Comment

        • #5
          Originally posted by jd666 View Post
          Get the carburettor float checked and the float needle replaced if possible. Also check the head for carbon build up.

          Before all this, make sure the Air-Fuel screw is tuned properly. A generic setting would be all the way in, and then about 2 - 2 1/2 turns out.
          @jd666
          I will get this checked. Thanks jd

          Originally posted by Lonely Rider View Post
          Please give more details of the Thunderbird to ascertain the problem.

          1.How many KM has it run?
          2.Any modifications?
          3.Model of the Bullet?
          @ LonelyRider It has run 40k kms
          No modifications done except the silencer
          It is 2008 model Tbird.
          Ride hard or stay home

          Comment

          • #6
            Oh me too having the same model and has done 44500 km so far

            As JD 666 said get the carb checked.

            Just to know are you using free flow silencer?
            RE Thunderbird Since Jan 09 onwards
            Suzuki Zeus             Jan -Dec 08 -- Sold
            Honda Unicorn             Oct 06-Dec 08 -- Sold

            New edition : BSA Mach 19" 6 Speed-- Sold
            Schwinn Sporterra -- Up and running

            Comment

            • #7
              Originally posted by Lonely Rider View Post
              Oh me too having the same model and has done 44500 km so far

              As JD 666 said get the carb checked.

              Just to know are you using free flow silencer?
              The silencer is glass wool. Now i dont know if that comes under a free flow silencer or not...
              Ride hard or stay home

              Comment

              • #8
                I was referring to the GOLDSTAR or similar type of silencer where you get the heavy beats

                I use goldstar silencer sometimes and there is drop in fuel efficiency but the throttle response is great.

                Did you check your carb?
                RE Thunderbird Since Jan 09 onwards
                Suzuki Zeus                 Jan -Dec 08 -- Sold
                Honda Unicorn                 Oct 06-Dec 08 -- Sold

                New edition : BSA Mach 19" 6 Speed-- Sold
                Schwinn Sporterra -- Up and running

                Comment

                • #9
                  Get it checked from a Good Mechanic

                  Originally posted by TBird View Post
                  Hi Riders,

                  Offlate the mileage of my Tbird has gone down drastically. I seem to get only 28-30 kmpl in city conditions way down from 38-40 earlier. Also i am not able to hit speeds more than 80 kmph. If i push more than that bike seems to stall as it does when running dry or hitting reserve.

                  I dont know much about the mechanics of the bike so wanted to see what the issue coule be before taking it to a mech.
                  Hi,
                  There is no point in speculating what might be the problem, a good Mechanic by taking a round can identify the exact problem and give you the solution, rather than It can be this or it can be that. When you are sick you need to visit the doctor first, identifying the problem is very important otherwise you wll end up losing money on this or that.
                  If u had been in Bangalore you problem would have been sovled by a click.

                  Regards,
                  Amit

                  Comment

                  • #10
                    i think this is due to the in proper tuning from bikes behaves as u said. just re tune it.
                    sigpicmy bike is my sign

                    Comment

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