Flushing brake fluid

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by La_Poderosa_3, May 5, 2006.

  1. La_Poderosa_3

    La_Poderosa_3 It's not freezing!!!!

    Joined:
    Jan 17, 2006
    Oddometer:
    164
    Location:
    Tiburon, CA
    What's the procedure for flushing the brake fluid on the 950? Can't find a thread on it.
    #1
  2. k7

    k7 Almost retired....tick..tick..tick..

    Joined:
    Jul 15, 2002
    Oddometer:
    24,825
    Location:
    Aridzona
    See pretty straight-forward based on the manual, page 12-11:

    Changing the rear brake fluid
    – Unscrew the cover on the brake fluid reservoirs 1 and remove
    together with the diaphragm 2.
    – Use a syringe to extract the used brake fluid and add fresh DOT 5.1
    brake fluid (Motorex Brake Fluid DOT 5.1).
    – Press the brake caliper pistons all the way back..
    – Use a commercial extractor (shop equipment) to extract the used
    brake fluid out of the system through the bleeder screw 3 on the
    brake caliper. Make sure the brake fluid reservoir is always filled with
    enough fresh brake fluid.
    – Tighten the bleeder screw again.
    #2
  3. Texmoto1

    Texmoto1 Adventure Berzerker

    Joined:
    Nov 3, 2004
    Oddometer:
    276
    Location:
    New Braunfels, TX
    #3
  4. k7

    k7 Almost retired....tick..tick..tick..

    Joined:
    Jul 15, 2002
    Oddometer:
    24,825
    Location:
    Aridzona
    #4
  5. sailah

    sailah Lampin' it

    Joined:
    Aug 12, 2005
    Oddometer:
    7,075
    Location:
    Turning expensive metal into scrap
    I just did mine, super easy. I bought a one man brake bleeder gizmo at NAPA, about 5 bucks.

    • Suck all the old fluid out of the Master cyl.
    • put bleeder on nipple (the bike numbnuts) of left caliper.
    • Fill MC with fresh 5.1 fluid.
    • Pull brake lever, at same time open up bleeder screw. Before brake handle bottoms out, close bleeder nipple. Repeat until fluid runs clear with no bubbles. If the handle bottoms out before you close the nipple, it will suck ait back into the lines, bad.
    • Keep a close eye on the level in the MC, if it starts sucking air, you need to start over.
    • Always start with the caliper farthest away from MC, in this case, the left side as sitting on bike.
    • It helps to have two people, but I did mine solo.
    • Be sure not to spill the fluid, corrodes paint.
    • Obviously put catch bottle under hose to avaoid spills.
    • I noticed the rear MC cover said DOT 4, but I used the Motorex 5.1 anyway. Not sure if this was a bad thing.
    • When I was done, I was amazed at how much firmer the lever felt. Much tighter.
    • Rear is same as front, only easier.
    #5