1. Husqvarna Motorcycles Made In Sweden - About 1988 and older

1979 Wr390 Rear Wheel

Discussion in 'Vintage/Left Kickers' started by treharne, Jul 10, 2021.

  1. treharne Husqvarna

    Husqvarna Motorcycle:
    WR390
    Other Motorcycles:
    xr650r, Bandit 600, CRF250R, DT125,
    Hi, I recently acquired a 1979 WR390 in a box, it is missing a few parts for the rear wheel/brake assembly and I am trying to figure out what I need. I am missing the rear axle and it seems that I am missing one or more bushings that support the rear brake shoe carrier and a spacer that goes between the carrier and the swingarm. can someone look at the attached picture and let me know what I might need?

    Thanks

    Attached Files:

    treharne, Jul 10, 2021
    #1

  2. Vinskord Husqvarna
    AA Class

    Husqvarna Motorcycle:
    400 CR
    Take a look at the attached pages from parts book:

    79 390 Rear Wheel - Copy.png


    79 390 Rear Wheel 2 - Copy.jpg
    Vinskord, Jul 12, 2021
    #2

  3. motomwo Husqvarna
    AA Class

    Location:
    Imbler Oregon
    Husqvarna Motorcycle:
    Many vintage big bore and automatics
    You need to figure out if your 79 WR has the 1980 rear brake and swing arm updates. Late or actually around mid 79 production run Husky changed the rear brake peddle, rear brake plate assy, brake stay and hub and swing arm to the what the 1980 WR's use. Can you take a picture of the swing arm, and brake peddle from the brake side or right side and post it? Husky switch to the 1980 WR rear hub starting with frame # MM5594

    Marty
    motomwo, Jul 12, 2021
    #3

  4. treharne Husqvarna

    Husqvarna Motorcycle:
    WR390
    Other Motorcycles:
    xr650r, Bandit 600, CRF250R, DT125,
    Thanks for the replies, My frame number is MM04544, I am not sure where that falls re the updated swingarm. I have looked at the diagrams and the parts manual however I am still unsure of how it all assembles. There is a brass bushing inside the brake housing that is larger than the 15mm axle that is supposed to go through it. is there a second brass bushing that goes inside? as in between the busing pressed into the brake housing and the axle?

    Thanks

    Attached Files:

    treharne, Jul 12, 2021
    #4

  5. ruwfo Administrator

    Location:
    NJ
    Husqvarna Motorcycle:
    1980 390CR, 1982 430CR, 1984 400WR
    Other Motorcycles:
    1985 250XC, 2016 FJ-09
    1st off, it looks like you do have a true WR, once i stood on my head, cause the pic up side down. And after looking at the pics, the swingarm is a WR one, but that's a CR braking plate for sure, so that may need a custom setup.

    Anyway looks like your missing Parts #49 (o-ring) & #50 (matching spacer), maybe #40
    (inner spacer) too , which can all be a pain to find. Those part can fall out on disassembly
    and long storage & get lost, if your not careful.

    See this thread , which leads to an even older thread.

    http://www.cafehusky.com/threads/wr-wheel-on-cr-80.91324/#post-665736

    Luckily WR parts are easier to find then CR ones, if you decide to go the stock route.
    ruwfo, Jul 13, 2021
    #5

  6. DeathFromAbove My Cat Says AREAR!

    Location:
    North New Jersey
    Husqvarna Motorcycle:
    70,71 360 8s 72,74 450 73 360 73 250
    Other Motorcycles:
    66 Triumph Trophy 99 ZRX1100
    I made a spacer for my 500, worked well.
    DeathFromAbove, Jul 13, 2021
    #6

  7. motomwo Husqvarna
    AA Class

    Location:
    Imbler Oregon
    Husqvarna Motorcycle:
    Many vintage big bore and automatics
    If it was me I would make it right and get the 1980 WR/OR rear wheel/hub and the WR/OR rear brake assy and the correct left side wheel spacer and brake rod and bolt it all together. The 80-82 WR, OR, XC and 420AE rear wheels and brake will work. You can sell your CR rear wheel and brake assy.

    Marty
    motomwo, Jul 13, 2021
    #7

  8. treharne Husqvarna

    Husqvarna Motorcycle:
    WR390
    Other Motorcycles:
    xr650r, Bandit 600, CRF250R, DT125,
    Marty, where would one look for a correct wheel and backing plate? Do you guys have a source for parts for these old bikes? I think I have the only one of these around my neck of the woods.
    treharne, Jul 13, 2021
    #8