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Thread: abs servo noise - R1200RT-2006

  1. #1

    Question abs servo noise - R1200RT-2006

    finally i got the courage to renew the brake fluid on the whole system,bought the funnel read the instructions put new speed bleeder valves.
    today i took a ride and although i have good braking,when i pull the front brake the noise on the shervo motor does not stop unless i release the lever,the rear stops but not right it seems that i did something wrong,is it air in the system?
    anybody ever had this problem?
    i'll appreciate your advise.
    Last edited by deilenberger; 02-10-2013 at 05:34 PM. Reason: added year/model to title and corrected spelling

  2. #2
    Registered User mpmarty's Avatar
    Join Date
    Mar 2008
    Camas Valley Oregon
    The SERVO motor is supposed to run until you let go of the brake lever or foot pedal.
    Marty - in the western Oregon mountains.'06RT, (gone '04RT, '86 Venture Royal, '81 Yamaha Virago920, '82Suzuki GS1100GK, '76 Suzuki GT750, Triumph 750 Bonneville, BSA Road Rocket 650, 61" Harley knucklehead)

  3. #3
    Marty, i just wanna say you made my day.
    perhaps i didn't pay attention before i did the bleeding but for some reason i thought that when i pulled the lever i heard the noise for 2-3 seconds only and then it got silent.
    thank you.Peter

  4. #4
    Front: servo comes on and stays on as long as the brake lever is triggering the brake switch.
    Rear: servo comes on with brakes and any change in braking pressure. Servo will stop with constant pressure, e.g. holding your self stopped on an incline. This is a battery saving feature as the servos suck up battery juice and the bike doesn't generate all that much current at idle. I thought there were words in the riders manual to that effect, but I can't find them.

  5. #5
    thank you again for the detail info.i got the bike 1 month ago and i'm still learning about hexheads.i had an 1150R 2003 before and it was a much simpler bike,but i love this one.
    Regards: Peter

  6. #6
    A bozo on the bus deilenberger's Avatar
    Join Date
    Mar 2003
    Spring Lake NJ, USA
    Peter - please read: - You might imagine how this applies to your thread since there are several (two?) generations of brakes used on hexhead models. The query would be model/year specific. I'm adding that info to your thread title, please do so yourself in future posts to the tech sections.

    Don Eilenberger
    Spring Lk Heights NJ NJ Shore BMW Riders
    '12 R1200R - I love this bike!

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