2019 Speed Twin Ecu Reset After Fitting A Tec X Pipe

Discussion in 'Bonneville' started by adrian knight, Aug 5, 2019.

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  1. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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    I purchased an X decat pipe from tec products for my 2019 Speed Twin and fitted it today using the video as a guide which really helped.

    I took it for about 5 miles tonight and it is popping and banging a lot on the overrun at low revs but pulls well.

    The question is what is the correct procedure to relearn the ECU or will it do this itself over time as it obviously isn’t running correctly ?

    Any help would be great.

    P.S it has SC project cans with the baffles fitted

    thanks Ady
     
  2. bob1

    bob1 Well-Known Member
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    Mar 12, 2018
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    Somerset
    mines got a two into one decated pops and bangs on the over run perfectly normal.
     
  3. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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    did you reset your ECU
     
  4. bob1

    bob1 Well-Known Member
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    Mar 12, 2018
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    no don't think you can. you say it pulls well why would you want to.
     
  5. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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    I thought the ECU needs to learn the changes made by removing the Cat ?
    i am just not sure on the correct procedure.
     
  6. bob1

    bob1 Well-Known Member
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    Mar 12, 2018
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    without the cat you basically got straight through pipes. you can remap all you want it will still pop and bang.
     
  7. MTBskier

    MTBskier Active Member

    Mar 12, 2019
    128
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    Las Vegas, NV
    Which SC Project cans did you use? Thruxton? They don’t advertise the Speed twin on their website. I’m looking for some shorter cans for mine. So far weslake seems to be the only thing I can find, which I like but I’d like more options...
     
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  8. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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    yes they are Thruxton ones i found second hand on Flea bay.
    they do two lengths , the baffles cant be removed

    20190728_124225_compress93.jpg
     
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  9. Eastbournemark

    Eastbournemark Proud Snowflake
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    Jun 17, 2017
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    Eastbourne
    Try this reset:

    Engine must be cold.
    Start up, not using the throttle.
    Leave idling until the fan kicks in (don’t touch throttle)
    Idle for a further 12 minutes
    Turn off.

    Let us know if it works for you.

    Mark
     
  10. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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    Thanks mark i will give this a go :)
     
  11. Dartplayer

    Dartplayer First Class Member

    Aug 8, 2018
    1,287
    500
    New Zealand
    Hi Guys,

    Need 2 cycles of cold to hot to reset ECU. If you follow Marks process , leave 15 minutes and then take for a ride, you will be good next day (or follow Mark’s process 2x with a break in between).
    I have no cat and only basic baffle tube, only pops after major decelerations :cool:
     
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  12. Uncle Olaf

    Uncle Olaf Member

    Mar 23, 2018
    37
    13
    Genk, Belgium
    I have SC Project exhausts on my Thruxton. Had ECU reset done correctly.
    Pops and bangs like hell when decelerating.
    Baffles in or out, makes no difference.
    Runs perfect.
    I like it that way!
     
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    • Thanks Thanks x 1
  13. Wessa

    Wessa Cruising
    Subscriber

    Apr 27, 2016
    4,400
    1,000
    North West England
    Not made any changes to my speed twin other than the V&H exhaust and it pops on the over run.... I like it :):)
     
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  14. beerkat

    beerkat Active Member

    Aug 14, 2019
    116
    43
    Cheshire UK
    My Street Twin is much the same. TEC end cans and a Motone decat. I did the warm-up bit as described above but it still pops on the overrun. I've emailed George Milburn at TEC Parts about it, to see if he thinks it's ok. He's on his hols atm so I don't expect a reply for a few days. However it's reassuring to hear others say it won't cause any damage.
     
  15. adrian knight

    adrian knight Well-Known Member

    Jul 8, 2019
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