Heavy Acceleration

Discussion in 'Technical Help' started by Richard Cheek, Oct 14, 2023.

  1. Richard Cheek

    Richard Cheek Well-Known Member

    Mar 23, 2019
    59
    68
    Maidstone
    #1 Richard Cheek, Oct 14, 2023
    Hi all. I took delivery of a speed triple RR yesterday and took her out for her first proper run today. Under heavy acceleration, ie pretty much full throttle, it comes off the power and revs to max revs. It is fine under less aggressive acceleration (half throttle) but when it's gunned it just comes off the power. It happens in every gear. I can't believe it was wheel spin.....I'd have noticed and it happened at any speed in any gear. Doesn't seem like limp home mode either as I can still get to very high speeds, just not with throttle open fully.

    Am I missing something?

    Thanks in advance
     
  2. Boothman

    Boothman First Class Member

    Jul 26, 2023
    784
    500
    Wigan
    #2 Boothman, Oct 14, 2023
    Back to the dealer I’d recommend
     
    • Agree Agree x 3
  3. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
    440
    113
    Downham Market, Norfolk
    #3 TRIPLE X, Oct 14, 2023
    Is it the clutch slipping?
     
    • Agree Agree x 1
  4. tcbandituk

    tcbandituk TC
    Subscriber

    Apr 8, 2016
    2,839
    1,000
    Reading
    #4 tcbandituk, Oct 14, 2023
    Clutch slip or TC.
    You'll see the TC light flashing at the time if it's the TC.
     
    • Agree Agree x 2
  5. Eldon

    Eldon Elite Member

    Nov 14, 2018
    6,791
    800
    North Yorkshire
    #5 Eldon, Oct 14, 2023
    Last edited: Oct 15, 2023
    Sounds more like a clutch slip issue to me than TC by the fact you say it runs up to max revs.
    When the TC is active the light is lit and the ecu holds the revs down irrespective of throttle request.
     
    • Agree Agree x 1
  6. Richard Cheek

    Richard Cheek Well-Known Member

    Mar 23, 2019
    59
    68
    Maidstone
    #6 Richard Cheek, Oct 14, 2023
    I'm pretty sure it's clutch slipping. I have loosened the clutch cable slightly but if that doesn't fix it tomorrow then I'll take it back to the dealer next week. Thanks all for your replies
     
  7. Eldon

    Eldon Elite Member

    Nov 14, 2018
    6,791
    800
    North Yorkshire
    #7 Eldon, Oct 14, 2023
    When you say "slightly" what do you mean?

    There always needs to be some slack in the system so I would anticipate 2mm or so of free play on either a cable or hydraulic clutch.

    For the avoidance of doubt;
    This equates to the lever moving without doing any real work.
     
  8. Richard Cheek

    Richard Cheek Well-Known Member

    Mar 23, 2019
    59
    68
    Maidstone
    #8 Richard Cheek, Oct 15, 2023
    I mean I turned the clutch cable adjuster on the bars a turn or so to loosen it very slightly. Just so there was the smallest amount of movement in the clutch lever. Before there was no movement at all. I will get the dealer to sort it next week as they said they had to do a recall repair on the clutch last week before I took delivery and I suspect it hasn't been reassembled properly. It's going in anyway for a quickshifter issue (known about before I collected) and a new rear tyre so I'll get them to sort the clutch too. I work at the dealership so I know they'll do what it takes to get it sorted for me.

     
    • Funny Funny x 1
  9. Traveler

    Traveler Well-Known Member

    Jun 21, 2023
    150
    93
    Helena, Sweet Home Alabama
    #9 Traveler, Oct 15, 2023
    Well if it's a new bike I dang sure wouldn't tell them you'd been hitting full throttle on it already!! Geeze

    Don't think it's a Triumph but read somewhere that a particular bike mfg'r limits the bike's performance until after the 1st svc.
    If it was Triumph I was reading about then that could likely be the 'problem'.
     
    • Agree Agree x 1
  10. Richard Cheek

    Richard Cheek Well-Known Member

    Mar 23, 2019
    59
    68
    Maidstone
    #10 Richard Cheek, Oct 15, 2023
    It's second hand! 2500 miles on the clock

     
  11. Traveler

    Traveler Well-Known Member

    Jun 21, 2023
    150
    93
    Helena, Sweet Home Alabama
    #11 Traveler, Oct 16, 2023
    Gooid to hear. BMW's are the bikes that all, or just some, are 'de-tuned' until getting a re-flash at their 1st svc.
     
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