Vibration/resonance at 4,000 revs on 2014 standard Blade - Normal??

Discussion in 'General 1000RR Discussion' started by Landy1000, Mar 28, 2015.

  1. Landy1000

    Landy1000 New Member

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    Hi I have moved from a CBR600RR to a 2014 ABS Blade - Im still adapting! One thing I notice and not sure if its normal is at @ 4-4,500 revs I get a really strong resonance or vibration noise, above 4,500 it fades, but may just being left behind in the wind...

    Is this normal? A feature of the exhaust servo maybe? I tried to damp what could be vibration of fairing etc but no luck. Its seems fairly speed independent and related to the engine revs.

    Any advice appreciated, Rgds Landy
     
    #1 Landy1000, Mar 28, 2015
  2. Slick

    Slick Elite Member

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    It's probably the inlet flapper opening, gives a nice booming induction noise.
     
    #2 Slick, Mar 28, 2015
  3. Cbrjay

    Cbrjay Well-Known Member

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    The exhaust valve opens around 4000 ish rpm, mines the same. I've put acky can on my 14 plate and left cable off the exhaust so it's open all the time
     
    #3 Cbrjay, Mar 28, 2015
  4. Landy1000

    Landy1000 New Member

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    Good to know its normal! Cheers Landy. Be looking for an exhaust some time.
     
    #4 Landy1000, Mar 29, 2015
  5. bonjo

    bonjo Active Member

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    ON the RR8, the exhaust silencer has two valves, ECV which opens above 3000rpm and changes the sound from the exhaust and EGBV 7~8krpm.
    Chance are RR14 has similar internals.
    I do get some vibs at 4000rpm but not resonance. This is not always there. Check/ lube your chain. Spin you rear wheel to see if the pads rub against the disc.
     
    #5 bonjo, Mar 29, 2015

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