Rear Break Bleed

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by kingmildred, Oct 7, 2012.

  1. kingmildred

    kingmildred n00b

    Joined:
    Dec 5, 2010
    Oddometer:
    7
    Location:
    Chicago
    Hey All,
    I'm a new 950 ADV owner.
    I think the recall for the rear break was done but the breaking is soft to nonexistent.
    Can somebody give me a clear method for bleeding the rear break?
    Sorry for the noob question, I''d just like to do it right.
    Thanks
    #1
  2. geometrician

    geometrician let's keep going...

    Joined:
    May 25, 2008
    Oddometer:
    1,034
    Location:
    West-By-God Virginia
    Here's what you are lucking for.

    Read the sticky at the top of our forum and use the HOW. Everything you could want to know is there- look first then ask the folks here at OC if you really need to
    #2
  3. kingmildred

    kingmildred n00b

    Joined:
    Dec 5, 2010
    Oddometer:
    7
    Location:
    Chicago
    Yeah I saw that.
    I'm just not sure how to "push the calipers back" during the bleed.
    I'm off to buy a mini-pump, syringe and some .4.
    Thanks
    #3
  4. gefr

    gefr Life is a trip

    Joined:
    Nov 26, 2005
    Oddometer:
    4,203
    Location:
    East Med, Greece
    Use a hose fitting on the bleeder and leading to the brake fluid reservoir. Pump 10 times the brake lever and then hold pressed and loosen the bleeder. The lever stops at its end. Tighten the bleeder and start another cycle with ten times pumping the brake lever. Redo the whole procedure till the brake lever feels it has strong resistance. Keep an eye on the reservoir not to run out of fluid. Refill as needed.
    Cheers.
    #4
  5. kingmildred

    kingmildred n00b

    Joined:
    Dec 5, 2010
    Oddometer:
    7
    Location:
    Chicago
    Yep.
    Piece-o-cake.
    Thanks
    #5
  6. K2m

    K2m ....58....

    Joined:
    Feb 27, 2005
    Oddometer:
    2,238
    Location:
    Sydney Australia
    Use Motul 600 and completely change it once a year (at the start of Summer) and you will not any more problems. If you do have problems, it's your riding, change it more off-ten. This brake runs hot, very hot, and builds up moisture in the line during the heat cycling.

    http://www.linkint.com.au/motul_rbf600.html

    "100% synthetic, RBF 600 FACTORY LINE is a polyglycol-based brake fluid exclusively designed for races. Developed to resist high temperatures and wet-weather conditions, RBF 600 has a high dry boiling point of 312°C and a wet boiling point of 216°C. This ensures effective braking under extreme racing or rainy conditions. Couple this with its outstanding anti-vapor lock performance, RBF 600 has become a well-trusted brake fluid in many races."
    #6
  7. BIG-E

    BIG-E AKA; Mongo-E

    Joined:
    Jun 28, 2007
    Oddometer:
    2,098
    Location:
    Phoenix, Arizona
    No, No!:nono Do not use 4 break fluid, ONLY use 5.1 motorex!

    Replace the pads with the Galfner "green" pads and if you have boiled your existing fluid, be sure to de-glaze your rotor.

    You won't beleive how much better these pads work!

    Take care Brother, Eric.
    #7
  8. kingmildred

    kingmildred n00b

    Joined:
    Dec 5, 2010
    Oddometer:
    7
    Location:
    Chicago
    Thanks for all the advice.
    The bleed was simple once I figured out what I was doing. Break worked fine back and forth through the city today.
    I used dot 4 because I figured that would be easiest to get my hands on quickly.
    A scotchbrite pad and some 5.1 followed by the green galfers should get me where I need to be.
    Soon:
    New tires - Conti T/As (I think)
    New chain and sprockets (maybe 16 up front)
    Figure if I'm jetted properly for my akropovic exhaust (pops and gurgles a bit on deceleration)
    Get rid of bubbley decals
    Get rid of mickey mouse mirrors (I like the looks of the highway dirtbike stuff)
    And the list goes on...
    #8
  9. Alleycatdad

    Alleycatdad Unbunch yer panties!

    Joined:
    Feb 6, 2008
    Oddometer:
    1,440
    Location:
    True Norcal, not that Bay Area/Sacto Crap...
    If you have a good bleed with the DOT 4 I'd leave it be.

    KTM calls for DOT4 anyway.

    If you want to go with something fancier, I've also had good luck with the Motul 600 and prefer it over the 5.1 fluid I've run at the racetrack. YMMV, of course.

    Steve
    #9