1. 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

250-500cc Rear brake problems on 2000 wr250

Discussion in '2 Stroke' started by haulin husky7, Jun 7, 2010.

  1. haulin husky7 Husqvarna
    AA Class

    Location:
    SWVA
    Husqvarna Motorcycle:
    13 txc310, 2000 wr360
    Other Motorcycles:
    2016 TM 300en, 93 KLX650R, 1975 XR75
    I got a 2000 wr250 that has rear brake troubles, no matter how much i bleed them they never seem to build any sort of stopping power back. when they do build pressure back you ride the bike a couple of yards and the rear brakes start to fading thus having no pressure.
    haulin husky7, Jun 7, 2010
    #1

  2. motosportz mike CH Sponsor

    Location:
    Washington state
    bent rotor or a leak somewhere in the brake system.
    motosportz mike, Jun 7, 2010
    #2

  3. haulin husky7 Husqvarna
    AA Class

    Location:
    SWVA
    Husqvarna Motorcycle:
    13 txc310, 2000 wr360
    Other Motorcycles:
    2016 TM 300en, 93 KLX650R, 1975 XR75
    I dont have a bent rotor or leak it holds fuild, when i bleed them the fluid comes out black.
    haulin husky7, Jun 8, 2010
    #3

  4. Dirtdame Administrator

    Location:
    Rock Springs Wy
    Husqvarna Motorcycle:
    11 WR300,13 WR125,18 FE501
    Other Motorcycles:
    17 Beta Xtrainer
    The system isn't clean enough inside. Contaminated fluid will cause problems including sometimes leaking fluid out or air in through the plunger or around the piston. If you have not completely disassembled the caliper with the piston out, and the master cylinder with the plunger out, you should try that. Make sure that everything is clean and dry before reassembling.
    Dirtdame, Jun 8, 2010
    #4

  5. MOTORHEAD Husqvarna
    Pro Class

    Location:
    Mount Vernon, Indiana
    Husqvarna Motorcycle:
    none
    Other Motorcycles:
    2014 YAMAHA YZ250
    What she ^^^ said, +

    Try removing the caliper and holding it straight up above the master and bleed them until they pump clean fluid.

    You'll have to put something between the pads to take up the space of the rotor, or it might push the piston out.

    If that doesn't work you may need to rebuild the master.
    MOTORHEAD, Jun 8, 2010
    #5

  6. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Yep, sounds like you need to completely disassemble the master and slave and clean it all out and inspect. I bet the master needs rebuilt (simple). then once it is all clean and new o-rings etc refill and bleed. your brakes will be like new again.

    FYI - If you ride a lot I recommend purging and refreshing the brake fluid twice a year. Amazing how much better the brakes work when fresh.
    Motosportz, Jun 8, 2010
    #6

  7. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    Man this a great forum. Look how fast the right solutions are presented here. Love it. :thumbsup:
    Motosportz, Jun 8, 2010
    #7

  8. haulin husky7 Husqvarna
    AA Class

    Location:
    SWVA
    Husqvarna Motorcycle:
    13 txc310, 2000 wr360
    Other Motorcycles:
    2016 TM 300en, 93 KLX650R, 1975 XR75
    thanks for the tips I will try some of it out.
    haulin husky7, Jun 8, 2010
    #8

  9. PC. Husqvarna
    AA Class

    Location:
    Beaverton, OR
    Husqvarna Motorcycle:
    CR165 & CR144
    Other Motorcycles:
    KTM500
    Reverse bleed it. Get a nice turkey baster, safety wire a length of hose from the baster to the nipple and push the fluid from the bottom up using the T baster. It pushes the air up (where it wants to go anyway) and should push any contaminants through the system with it.
    It will make a huge mess!

    If that fails, it's time for a m/c rebuild kit.
    PC., Jun 9, 2010
    #9

  10. haulin husky7 Husqvarna
    AA Class

    Location:
    SWVA
    Husqvarna Motorcycle:
    13 txc310, 2000 wr360
    Other Motorcycles:
    2016 TM 300en, 93 KLX650R, 1975 XR75
    where can I get a rebuild kit for the master cyclinder.
    haulin husky7, Jun 9, 2010
    #10