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  • #1

    stutter below 3000 rpm??

    Newbie here.... Hi!

    So, I'm looking at a TL1000S. I test rode it and it rides great except for below 3K rpm. Below 3K the bike gets all herky jerky (uneven fuel delivery?)

    I am told this is something to do with the flapper valve?

    How easy is this to fix?

    The bike has Yosh pipes and has been remapped a bit by a yosh box. Nothing else that I am aware of has been done to the engine (or airbox)....


    TIA

    Tags: None
  • #2
    welcome to da planet

    you definitely came to the right place. first i would be suspect of the map that has been loaded. any way to load the stock map and try it again (would need access to a yosh box)? even with a full system and the stock map, it shouldn't stumble. others here are running that same setup without a problem. i know here have had a stumble at lower rpms and will probably be able to give more info.

    in general, the TLs dont like to creep along at lower rpms. the twin is a little confused as to why you aren't using all it's torque. they can feel really jerky if you are coming off of an I-4

    2000 tillis plus stuff with some polished stuff and some carbon fiber stuff and a little bit of tlr stuff and some gsxr stuff

    CLICK HERE to donate a couple dollars/rubles/won/yen/euro/pounds/francs/etc to the greatest forum on the web!
    "Aerodynamics are for those who fail to make HORSEPOWER!"
    -Enzo Ferrari-

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    • #3
      my old tls did that like a mad bike. i got used to it and it never bothered me.
      Why yes I am a jackass, thank you.

      <------ Post whore in training

      Http://530riders.com

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      • #4
        oh, btw, welcome to the planet
        Why yes I am a jackass, thank you.

        <------ Post whore in training

        Http://530riders.com

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        • #5
          bah...newbies seriously need to read the FAQ...its either a bad setting on the TPS, a TRE fixable stumble, or a poor map. Flapper valve problem? unlikely, did you mean PAIR valve? even then the answer would be no, PAIR valve is usually associated with a backfire. I'd put money on the first three in that order. TPS=free, TRE=$20 (or $3.50 at radio shack), FI Map...get's a little more pricey, depending on which route you go.

          there, i've answer this question for the 18th time today...

          but seriously welcome to the planet
          there's a wealth of knowledge here, enjoy

          -

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          • #6
            Welcome

            what he said, TPS adjustment first,m then a TRE (timing retard eliminator)
            "I spent most of my money on Scotch, women and cigarettes. The rest I just wasted"

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            • #7
              Just don't tell me TPS has something to do with reports....



              oh, and thanks for the warm welcome...

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              • #8
                uggh...did you read the FAQ??! we still have an FAQ right?

                TPS=throttle posistion sensor, the biggest pain in your ass to set, but the single most important device to have set correctly...this puppy can make the difference from bucking bronco to smooth as glass...

                do a search, all your answers will be answered

                -

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                • #9
                  Welcome

                  Check your TPS, then.. check your TPS again, that is usually the problem.

                  My TLS loves to get a little choppy below 4k. my TPS is right on, but I know my Mapping is terrible. and my TwoBros pipes are probably not the best on the block (possibly why they are discontinued?)

                  Good Luck..

                  Comment

                  • #10
                    maybe i spent too much time on I-4 bikes, but i am never below 3k, or 4k for that matter...

                    and welcome
                    [email protected]

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                    • #11
                      Originally posted by Twin Pumper
                      Just don't tell me TPS has something to do with reports....



                      oh, and thanks for the warm welcome...



                      TPS-reports..... did you get the memo?
                      PCIIIUSB::CZ wheels::Akra f/s custom cans&hangers::Bitubo shock::GSXR750 K4 legs::R1 calipers::GSXR K2 rear caliper::ExtremeTech damper::Race rearsets::Joe V mod::K&N filter::Van's CCC+PP::Barnett springs::GiPro ATRE::1/5 throttle::C/F mirrors+hugger+fender+tankprotector::LP screen::mod subframe w/ gap tray::undertail::flush indicators::Van's rear cup::Brembo 19x18::Braided lines::Galfer wave rear rotor::Speedking mod OEM rotors::Van's ecc::WC clipons::520 @ 16/40::Van's spr cover::TWM cap::

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                      • #12
                        Originally posted by danny never
                        maybe i spent too much time on I-4 bikes, but i am never below 3k, or 4k for that matter...

                        and welcome
                        That's because on an I4 you won't go anywhere below 3-4 K rpm

                        Stick with the TL
                        Just a few mods:

                        Silver, the fastest color!

                        On the inside - HID type bulbs, K&N filter, Iridium ix plugs, 16T front sprocket, Coerce billet sprocket cover, Yosh re-map +5, +5, +5 11 o'clock, Scorpio SE-i500 system from my GB and an ATRE.

                        On the outside - TLR forks, front carbon fender, 5/8th master brake cylinder, black SS brake lines (frnt & rear), braking waves all around with Ti bolts, Brembo gold front calipers & a busa gold rear caliper, flush mount signals (frnt & rear), ZG DB scr

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                        • #13
                          Originally posted by J-Bone



                          TPS-reports..... did you get the memo?

                          Ahhh great movie.. Office Space

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                          • #14
                            Welcome, don't let them spoil you with all this anti I4 talk. But I hear that it can be fun every now and then.
                            RIP Ron
                            Sept. 12 2004

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                            • #15
                              I'll just send you the memo again....you see we now have to put a cover page on the TPS report...

                              If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason.

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