Rebuilding a Yamaha IT 465 1981 rear shock...

Discussion in 'Old's Cool' started by JesperXT, May 16, 2007.

  1. JesperXT

    JesperXT XT 550 Rider!

    Joined:
    Jan 2, 2006
    Oddometer:
    72
    Location:
    Copenhagen, Denmark
    Hi guys...
    Just received this in mail today...
    [​IMG]
    ...and thought that I might as well get it rebuild before replacing the one I've got atm.
    The seller on ebay said is was in fine condition and I don't see any leaks. Called up two places in Denmark that rebuilds shocks and got two very different replys:

    1st place:
    Can't be done - Early eighties Yamahashocks can't be reassembled. Then he said something about how the chrome looked, but there isn't any (Or it's COMPLETELY worn away...) Said I could bring it by him though, and he'd have a look at it. Very friendly guy :D

    2nd place:
    Seemed quite rude on the phone. Said: "Sure, send it to me with your name and adress".

    Had to explain to both places that the IT is kind of an enduro/trials version of the YZ. I actually don't think the IT was sold in Europe? At least not in Denmark.

    Do anyone in here know anything about this shock? Should I just stick it on the bike and see what happens? Should I send it to the second guy and see if it comes back in pieces, because he can't reassemble it? Any advice is greatly appreciated...

    Best regards
    Jesper
    #1
  2. El Hombre

    El Hombre Banned

    Joined:
    Jul 19, 2006
    Oddometer:
    1,536
    Location:
    Alta Coma, California
    Can you see what the top of the shock tube looks like? Is there a cap with flats or holes for a pin wrench?

    Is it welded? Probably no go.


    You might check Ron Ayers or Bikebandit sites and pull the parts diagram for the shock and see what's there. I would do that for you, but you should learn how.:D
    #2
  3. Sniper X

    Sniper X De Oppresso Liber

    Joined:
    Jul 18, 2006
    Oddometer:
    33,465
    Location:
    Central New Mexico, 7420ft above sea level
    First thing I would do is throw it on the bike and see how it works,, if well then button it up AND ride. Otherwise presue a rebuild.
    #3
  4. JesperXT

    JesperXT XT 550 Rider!

    Joined:
    Jan 2, 2006
    Oddometer:
    72
    Location:
    Copenhagen, Denmark
    Can't see the top end. I presume it's the end that would sit roughly in the middle under the spring? It's covered in a plastictube.

    Couldn't find anything on Ron Ayers or BikeBandit. Found a manual on ebay. 9 $ for a pdf download. That's what I paid for the shock in the first place :lol3

    I just noticed that the reservoir is badly scratched. REALLY deep scrathes near the top edges.
    But I think I'll just mount it and see if it works...
    #4
  5. jdiaz

    jdiaz .

    Joined:
    Feb 27, 2002
    Oddometer:
    32,373
    Location:
    Flyover State
    The reservoir on all those bikes got scratched, since it was mounted on the frame downtube. Mine never missed a tree branch! :lol3
    #5
  6. Flood

    Flood F5lood.

    Joined:
    Oct 18, 2005
    Oddometer:
    10,161
    Location:
    Austria
    Can you remove the spring?
    If you can, do so. Then you are able to compress and decompress the shock and see if there's still any damping in effect.
    #6
  7. manxkipper

    manxkipper Fishpistel

    Joined:
    Jan 11, 2006
    Oddometer:
    703
    Location:
    Cape Town
    In my 1981 IT465 genuine Yamaha manual there is an exploded view of the innards of the shock so I expect it may be able to be rebuilt. Any good shock builder would be able to tell you immediately.
    #7
  8. El Hombre

    El Hombre Banned

    Joined:
    Jul 19, 2006
    Oddometer:
    1,536
    Location:
    Alta Coma, California
    I think we have a winner. They won't show parts you can't buy. Most of the time.
    #8
  9. JesperXT

    JesperXT XT 550 Rider!

    Joined:
    Jan 2, 2006
    Oddometer:
    72
    Location:
    Copenhagen, Denmark
    Alrighty then... I'll drop by a shock-rebuilder on monday and hear what he says.
    #9
  10. Zecatfish

    Zecatfish XTique Rider

    Joined:
    Dec 30, 2006
    Oddometer:
    7,928
    Location:
    Arkansas USA
    Do you need a spare? I have one just like it off a YZ465 about the same vintage. I was going to try and use it on an old TT250 I have but got a like new part instead that actually fit.
    Let me know I'll sell it cheap.
    BTW mines adjustable if yours isn't,
    Terry
    #10