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An Unholy Union V: DRZ forks on an Airhead

Discussion in 'Airheads' started by Ras Thurlo, Jun 28, 2014.

  1. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

    Joined:
    Feb 6, 2007
    Oddometer:
    797
    Location:
    SOUTHERN CALIFORNIA, Thousand Oaks.
    I have been reading again on the thread and with your set up is fine the way you run it ... although the dynamics with these big 32 36 mm pistons change add that is multiplied 2 !:fpalm
  2. The Patagonia Kid

    The Patagonia Kid gnarly adventurer

    Joined:
    Feb 6, 2007
    Oddometer:
    797
    Location:
    SOUTHERN CALIFORNIA, Thousand Oaks.
    I went back to the drawing board and reviewed what I did to figure out why the brakes were not performing the way I was expecting.
    A couple of hours and patience all it took ...
    Another inmate asked about bleeding it correctly and I was too quick thinking I did. There was a massive air bubble on the left side caliper preventing the proper pressure on the pads and that was the issue.
    Now both calipers are working as intended hence I can finally say I succeeded with this part of the project. Then 15 mm master + 2 calipers 32 36 work flawlessly. :-) :y0!
  3. quokka

    quokka Adventurer

    Joined:
    Jul 31, 2016
    Oddometer:
    19
    I am fitting Prutser's triples and DRZ forks to my 89 R100GS. The springs have been shortened 50mm, and spacers are in place. I made the axle myself, and had it ground at a bearing shop (so I know it's straight). If I set the stanchion tops so that they are equal, the axle doesn't want to go through the holes in the clamps. If I set the stanchions so that there is 3 mm difference in the amount protruding, then the axle slides in. What am I missing?
    The Patagonia Kid likes this.
  4. Motopsychoman

    Motopsychoman Not a total poseur Supporter

    Joined:
    Jun 2, 2013
    Oddometer:
    5,967
    Location:
    Oaklandish
    Are you sure the damper rod is screwed all the way into the tube cap? No extra washers? Spacers both identical? Damper tube pulled all the way down into the bottom cone? I'll try and think of more reasons.
    The Patagonia Kid likes this.
  5. aptbldr

    aptbldr easy rider

    Joined:
    Apr 20, 2009
    Oddometer:
    1,571
    Location:
    Upstate South Carolina, USA
    Imagine once it's assembled; how much will this mis-alignment matter?
  6. quokka

    quokka Adventurer

    Joined:
    Jul 31, 2016
    Oddometer:
    19
    Motopsychoman got it in one, damper rod not screwed all the way in. Ran out of time today to reassemble but I think that will fix it. aptbldr, I was more concerned the misalignment indicated a problem elsewhere, which I think it did.
  7. Motopsychoman

    Motopsychoman Not a total poseur Supporter

    Joined:
    Jun 2, 2013
    Oddometer:
    5,967
    Location:
    Oaklandish
    Probably the easiest one to not get right.
    I still have to recheck one of mine as the rebound adjuster screw keeps turning instead of bottoming. I need to go buy a 17mm bicycle cone wrench so it is easier to reach between the coils.
    The Patagonia Kid likes this.
  8. bleaknessengine

    bleaknessengine Been here awhile Supporter

    Joined:
    Mar 29, 2009
    Oddometer:
    162
    Location:
    Portland, OR
    finally getting some time riding this little guy around. very happy with the drz forks and prutser’s triples, i haven’t even fallen down once yet haha. rear is extended 3” mono with hyperpro shock, i’ve never felt so pampered while riding. hooked up my new motogadget speedo today, with my ham-fisted soldering skills, but i don’t know about the tach function, are airhead electronic ignitions cdi??? super psyched on the forks, i can run over everything so far with little trouble.

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