Project 1976 Yamaha YZ400

Discussion in '2 smokers' started by craydds, Feb 22, 2013.

  1. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Fork tubes are straight, must be a funny picture. One of the tubes is pitted with rust spots. I sanded and polished it, hope it holds air and oil... we shall see. Otherwise, I'll buy a new fork tube.
    #61
  2. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Triples going together:
    [​IMG]

    Stem is FROSTY, it's been in the freezer:
    [​IMG]

    Bit of grease on the stem, heated up the bearing in my girlfriend's favorite skillet, bearing drops on with a light tap:
    [​IMG]

    Races in the freezer, bit of grease and heat up the steering head (heat gun), and the races drop right in:
    [​IMG]

    As Valleryrider recommended, I now have new tapered roller bearings from All Balls for the steering head:
    [​IMG]
    #62
  3. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Time for new All Balls swingarm bearings. Same process, grease (I use anti-sieze) and heat up swingarm:
    [​IMG]

    Bearings have been in the freezer for hours, they drop in with a light tap, used a socket as a drift:
    [​IMG]

    Coat of paint:
    [​IMG]

    All Balls parts:
    [​IMG]

    Swingarm is ready for installation. Soon... I hope:
    [​IMG]
    #63
  4. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Question I posed to Scootern29, but I'll ask all, how do I pull off the flywheel? I've got the nut loose, I suppose I need a flywheel puller?
    [​IMG]
    #64
  5. Scootern29

    Scootern29 Long timer

    Joined:
    Sep 4, 2012
    Oddometer:
    1,073
    Location:
    In the hot, hot, dezert
    Hey Ray, sorry I missed your question in my thread. Yes you will need a flywheel puller. I am at work right now so I don't have time to look up the part # for you. Do a search on Ebay for Yamaha flywheel pullers. That's where I got mine and it works on many other models as well.

    BTW the threads in the flywheel are left hand. Make sure you run that puller in as far as you can get it or it will pull the threads. That would be a bad scene. I almost did it. Ha Ha

    Keep up the good work.
    #65
  6. JeffS77

    JeffS77 cheap bastard

    Joined:
    Apr 23, 2006
    Oddometer:
    3,475
    Location:
    Riverside , CA

    Oh so very true and costly
    #66
  7. Valleyrider

    Valleyrider I Survived The '60s

    Joined:
    Apr 12, 2007
    Oddometer:
    1,952
    Location:
    Valley Dweller
    Just trashed my puller.... Threaded in as far as I could get it (into the rust) and after several attempts to loosen the flywheel, No Mo Threads.

    The build is looking great Ray!!
    #67
  8. JeffS77

    JeffS77 cheap bastard

    Joined:
    Apr 23, 2006
    Oddometer:
    3,475
    Location:
    Riverside , CA
    If it only pulls the pullers threads it's all good... Just don't bugger up that flywheel :eek1
    #68
  9. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    #69
  10. Scootern29

    Scootern29 Long timer

    Joined:
    Sep 4, 2012
    Oddometer:
    1,073
    Location:
    In the hot, hot, dezert
    I would imagine it is. That's how I bought mine by what bike it fit.
    #70
  11. Scootern29

    Scootern29 Long timer

    Joined:
    Sep 4, 2012
    Oddometer:
    1,073
    Location:
    In the hot, hot, dezert
    I have a question for you Ray, your user name is craydds. Is dds for dentistry? That may explain the jackhammer trick maybe. :rofl:roflJust kidding my fren.
    #71
  12. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Yes, I am a DDS. I have finely developed motor skills. That's why I use a JACK HAMMER.
    #72
  13. Scootern29

    Scootern29 Long timer

    Joined:
    Sep 4, 2012
    Oddometer:
    1,073
    Location:
    In the hot, hot, dezert
    :rofl:rofl:rofl:rofl
    #73
  14. Valleyrider

    Valleyrider I Survived The '60s

    Joined:
    Apr 12, 2007
    Oddometer:
    1,952
    Location:
    Valley Dweller
    Yes Ray, that looks like the right one.
    Dentistry and Jackhammers.... Scarin Me!! :rofl
    #74
  15. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    I promise I'll be gentle. Open wide.
    (some progress made today. pictures tomorrow morning.)
    #75
  16. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Threads? Where are the threads?
    [​IMG]

    All I see is RUST:
    [​IMG]

    Will keep it soaked until my puller arrives. May need to get a puller that will grab the outside of the flywheel:
    [​IMG]
    #76
  17. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    A few more coats of rattle can:
    [​IMG]

    Triples going on with new bearings:
    [​IMG]

    Purdy:
    [​IMG]

    Forks:
    [​IMG]

    Mock-up:
    [​IMG]

    Will fill 'em with fork oil today:
    [​IMG]
    #77
  18. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    Swingarm was chewed up by the chain:
    [​IMG]

    I ordered a new thrust cover and seal - waiting upon its arrival:
    [​IMG]

    Got a new guard to go over the thrust cover:
    [​IMG]

    Load it with grease. Will install swingarm after new thrust cover/seal gets here:
    [​IMG]
    #78
  19. Valleyrider

    Valleyrider I Survived The '60s

    Joined:
    Apr 12, 2007
    Oddometer:
    1,952
    Location:
    Valley Dweller
    #79
  20. Scootern29

    Scootern29 Long timer

    Joined:
    Sep 4, 2012
    Oddometer:
    1,073
    Location:
    In the hot, hot, dezert
    Did you get the fork boots from the vintagespoke.com? They look good.
    #80