Chain size for 1973 CR250

Discussion in 'General (Main)' started by spaceace182, Jun 30, 2018.

  1. spaceace182 Husqvarna
    A Class

    Location:
    Modesto Ca
    Husqvarna Motorcycle:
    1973 250cc CR
    What's the correct chain for 73 CR250? the one I have is still just a hair to wide, I need the most narrow chain they make. Anyone know what chain it is and where to buy it? I have a DID narrow x ring enduro chain on it now and its still about 1 to 2mm to wide. Thanks!
  2. Krudd Husqvarna
    AA Class

    Location:
    Sweden
    Husqvarna Motorcycle:
    89A 510TE, 89B 510TE
    Other Motorcycles:
    '81 Yamaha XT500
    I imagine you need a chain without x- or o-rings. Try to post at the "Vintage/Left Kickers" -section, I'm sure you'll get a good answer there.
  3. Crashaholic Husqvarna
    Pro Class

    Location:
    Antelope Valley, CA.
    Husqvarna Motorcycle:
    73 450WR 6spd motor in a 75 MK frame
    Stock chain was a 5/8" X 1/4" non-oring. I think the tapered countershaft allows the sprocket to creep further onto the shaft after multiple removal and installs.

    If you're having a problem with the chain rubbing the countershaft seal retainer you can remove 1 or 2mm from the side of the retainer that contacts the case. I've done this on the four speed oval case motors using a belt sander and the chain rubbing problem was solved.