G/S PD + some R-dubb goodness

Discussion in 'Airheads' started by R-dubb, Mar 30, 2013.

  1. christian

    christian Long timer

    Joined:
    Jul 9, 2004
    Oddometer:
    2,672
    Location:
    Redwood City, CA
    I've been following this project since the beginning, I was very sceptical in the beginning

    Seeing the end results I can only tell that Rick is the guy to make it happen!!!

    Stellar work and project management
    #21
  2. xrjohnny

    xrjohnny total poser, slow as heck, bad attitude

    Joined:
    Apr 4, 2002
    Oddometer:
    74
    Location:
    San Carlos, CA
    that is art. nice to see the attention to detail. please do not let me near it or my xr...I fear we both will taint it. But if you are offroad with it, please feel free to use me or my bike for traction. That thing is worth protecting.
    #22
  3. Cdubs

    Cdubs made for adventure

    Joined:
    May 10, 2011
    Oddometer:
    270
    Location:
    SF, CA
    Your build and post's inspired me to do something similar! Hope to see ya around town :)
    #23
  4. sashapave

    sashapave riders on the strom

    Joined:
    Jun 12, 2002
    Oddometer:
    1,434
    Location:
    Oakland CA
    Awesome job Rick!
    #24
  5. DK Dan

    DK Dan Been here awhile

    Joined:
    Jan 14, 2013
    Oddometer:
    314
    Location:
    Denmark
    R-dubb, very nice result :clap
    It's really inspiring me to freshening up my G/S.

    Some years ago I mounted some alternative instrumentation, GPS and headlight using similar aluminium angle brackets as you. After only a few offroad rides the brackets cracked right in the sharp bends. So you might keep an eye on these. Currently all is held in place by zip-ties but I'll probably make some stainless brackets with a "soft" bend.

    Did you get the original BMW steel header pipes and collector box or are they stainless from Keihan or another company?
    #25
  6. LoJack

    LoJack Long timer

    Joined:
    Apr 4, 2008
    Oddometer:
    1,622
    Location:
    B.G., yo!
    Wow, that looks great!
    #26
  7. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    Flat black steel pipes and collector from Boxxerparts. The finish was not very nice, so I had them ceramic coated inside and out. It was done locally and very affordable.

    Oh, I am a little concerned about the instrument mounting rails. There is also strong support from the bottom, so maybe it will hold up. I'm also having some issue with the brake line route. My plan will be to put up some miles and work out modifications.

    Good luck with yours!
    #27
  8. Ricardo Kuhn

    Ricardo Kuhn a.k.a. Mr Rico Suave

    Joined:
    Sep 20, 2001
    Oddometer:
    14,390
    Location:
    Salt lake city, Utah
    Oh Rick, I miss working with you so much, great job as always :ricky
    #28
  9. Beemerguru

    Beemerguru Beemerguru...G/S guy

    Joined:
    Nov 7, 2006
    Oddometer:
    1,205
    Location:
    Redwood City, CA
    Watch it or this could become an addiction and you'll be building another with "lessons learned"...again, and again, and again :rofl:rofl:rofl

    I've got two builds going on right now..head down to Redwood City for a chat.

    Greg
    #29
  10. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    Thanks Greg, I've enjoyed it. I've torn down and worked many marks. I come back to the airheads. Less pain, more gain. My next project is new crank bearings in a Norton P11. That could cure my urges forever. I hate working on that bike more than any.

    We really should compare notes and soak a few every now and then. :freaky
    #30
  11. Beemerguru

    Beemerguru Beemerguru...G/S guy

    Joined:
    Nov 7, 2006
    Oddometer:
    1,205
    Location:
    Redwood City, CA
    Why not join the monthly Airheads Barley therapy at the Pyramid Brewery Wed night at 6. Over in Berkeley.

    Always first Wednesday of the month. The Penisulla group is first Monday of the Month at the Tied House in Mountain View.

    Also have a Tech Day coming up in Santa Cruz on April 13th...start around 10ish till whenever.

    Greg
    #31
  12. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    Got a hundred miles in on the new steed :clap

    For fresh off the cutting room floor she did just fine. Rode to work through 30 miles of lane splitting hell. No drama. Engine smooth as silk at any speed. Nice balance, very little brake dive, suspension real stable.

    Got done at 4:30 and headed out toward the coast on Old Page Mill. It's wonderful little road, tight, twisty, climbs up to the coastal ridge line above the Bay.

    I found the suspension to be very compliant, but shock firms right up when dropping over the big bumps. Maybe a little loose at this point as the clickers are far from dialed in. The front is solid and turns in just right. I did notice it get a little vague and skittery over ripples when leaned over. Need to fix that, not quite sure what to do, but time will tell. Close enough that I'm very sure it will be just fine. Good news is the springs, ride height and front to rear balance feel just right. Very pleased but have some fiddling to do.

    Engine is super smooth. Limited power, but we all know that. I like the feel under acceleration. Didn't notice any hesitation or obvious jetting issues under power. Shes fueling just fine. I do have an idle problem. The engine revs on when I chop the throttle while standing still. Little blips raise the revs and take a second or two to retreat. idle speed is good, balanced and steady, just the run-on problem. In the past on other rides, I've noticed that to be a sign of a lean mixture screw. this is different in that it doesn't hunt but does run-on. Maybe the pilot is too small. I intentionally started with rich mains because the engine is fresh and we don't want lean under power just yet. Any ideas out there on the idle issue??

    Finished the ride with a nice cruise over Skyline and a blast homeward on 280. Wow, no wind screen. There was a stiff headwind, and I was feeling a little blasted at anything over 65. Oh well. the bike didn't bobble or twitch or head slap. Handling at speed is super stable and very predictable, just not real fast...

    Mechanically, I must have done OK, nothing fell off or rattled. Tight as can be all around. I did notice a little, odd engine whistle when I cut the throttle at speed. Maybe the breather needs to get gummed up a little to quiet down. Not sure about that one.

    Did not stop grinning!!! I felt like I do on a new ride that's gunna be just right. Ear to ear.:D

    Please chime in with any thoughts at all :ear
    #32
  13. sashapave

    sashapave riders on the strom

    Joined:
    Jun 12, 2002
    Oddometer:
    1,434
    Location:
    Oakland CA
    Time for a photo shoot so we can send it over to BikeEXIF!
    #33
  14. Stagehand

    Stagehand Imperfectionist

    Joined:
    Oct 6, 2004
    Oddometer:
    31,934
    Location:
    Shawangunks
    Aweome bike, Rick. If it works, its a great weld, AFAIC. :D

    Your idle hang may be an intake air leak? I'm chasing a similar issue.
    #34
  15. brittrunyon

    brittrunyon R 100 GS F 650 GS

    Joined:
    Oct 6, 2010
    Oddometer:
    645
    Location:
    The High Desert of New Mexico
    Good starting bike.......
    Beauty of a finish :clap

    I'm curious to what brand lift the bike is on?
    #35
  16. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    let's make a date!
    #36
  17. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    Thanks, great thought. I'll look around.
    #37
  18. R-dubb

    R-dubb Dubbious Adventurer

    Joined:
    Aug 4, 2001
    Oddometer:
    5,309
    Location:
    San Francisco
    Kendon
    #38
  19. christian

    christian Long timer

    Joined:
    Jul 9, 2004
    Oddometer:
    2,672
    Location:
    Redwood City, CA
    In :-))
    #39
  20. Lornce

    Lornce Lost In Place

    Joined:
    Aug 17, 2003
    Oddometer:
    19,727
    Location:
    Way Out There.
    Bike looks nice. :thumb

    High idle issues are sometimes caused by the ignition advance weights hanging up in the advanced position, even as the revs drop off.

    The change in ignition timing alone can leave an otherwise properly tuned engine "idling" at 3k rpm.

    Flushing the bean can liberally with electric contact or brake cleaner and then dousing it with aerosol silicone spray can often cure sticking advance weights.


    I'm surprised your fork springs aren't too stiff after shortening an already heavy wind. :dunno

    Have fun.

    :thumb
    #40