83 YZ 250 Suspension rebuild ?'s

Discussion in '2 smokers' started by fire1998, Sep 13, 2012.

  1. fire1998

    fire1998 Adventurer

    Joined:
    Feb 24, 2007
    Oddometer:
    58
    Location:
    Cheyenne, Wyoming
    How good were the stock forks on shock on an 83 YZ 250. Have the bike stripped and need to figure out what to do about suspension. I can rebuild forks but not shock, never done one before. Do the forks need the Gold Valves for vintage racing? Does the rear need the Gold valve. I called Race Tech and got a quote of $1100 for rebuilding front and rear with gold valves. Thats some expensive suspension!! What have you guys been doing and who would you recommend for work?
    thanks
    #1
  2. Reino

    Reino Been here awhile

    Joined:
    Nov 21, 2011
    Oddometer:
    212
    Location:
    namibia
    You can do those yourself its very simple all you need is a seal driver, fork seals, dust wiper and fork bushings.

    Do you have a owners manual? If not get a clymer manual.

    You can save a lot of cash by doing these thing's yourself and as for gold valves. Just buy them and install them yourself. they come with shim instructions (so i am told).

    If you don't have time to do it, go local.

    here is the link to the manual http://clymer.com/Book.aspx?bid=559&title=Clymer+Yamaha+YZ100-490+Monoshock+1976-1984
    #2
  3. anotherguy

    anotherguy Long timer

    Joined:
    Jun 18, 2009
    Oddometer:
    6,634
    Location:
    the hills
    For the shock contact MX Tech. The shock is a Kayaba/KYB 43MM (I think) and if you want to update a lot of later KYB stuff retrofits. If you just want a service,i.e. fresh oil and a charge any good off road shop should have a suspension guy on staff.

    On the forks. I have an '80 YZ465 w/'82 forks. I did the Cartridge Emulators and what a difference. The install is doable by anyone w/ a sense of how to drill a hole and deburr it. Well worth the effort for racing.

    If you haven't yet upgrade the springs for your weight for starters.
    #3
  4. Shocktower

    Shocktower Long timer

    Joined:
    Jul 27, 2009
    Oddometer:
    9,494
    Location:
    Oregon City Orygun
    I put the golds on my RD, it is simple as pie, the rear shock needs service, find a shop who knows their stuff and get it done, for the front seal driver a 30mm socket worked great for me :evil
    #4
  5. athomerecords25

    athomerecords25 Banned

    Joined:
    Apr 15, 2012
    Oddometer:
    146
    Location:
    Oakley, CA
    I know this is a very old thread, but if you are around, how did the Suspension turn out?

    Thanks
    #5