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Recent content by robertbarr

  1. robertbarr

    18 motorcycle crashes in one day at Sturgis Rally in South Dakota

    Here's why I avoid these guys like an STD on the road. I hope this link works: 18 motorcycle crashes in one day at Sturgis Rally in South Dakota​ Not to beat a dead horse, but could a little training be too much to ask? Note that every single incident was 100% rider screw-up. Perhaps a little...
  2. robertbarr

    High Headwinds Stutter

    I had the identical problem with an '82 GS850 I had. Drove me nuts. Primarily diagonal headwinds (crosswinds) would cause this-- as you noted, around 10:00 or 2:00.. I could punch the throttle and get plenty of smooth acceleration; what I couldn't get was steady power to maintain a constant...
  3. robertbarr

    Mikuni BS/CV and VM O-ring Kits

    Non-US members might recall my approach to international shipping -- I used my envelope printer software to include the message "Here's your O-ring Samples" across the lower left of the envelope. It was remarkably effective; I never had a single envelope returned for customs shenanigans.
  4. robertbarr

    Should I Offer Carb O-ring Kits For Sale?

    I don't have any complaints with Paypal as far as the basics of the transactions were concerned; however, in the interest of your own sanity, I would highly suggest avoiding Paypal Shipping at all costs. It's likely to seem easier and simpler than using an external shipper, but by an EASY...
  5. robertbarr

    update on my 1100GK

    Aside from a dash of possible embarrassment, let's compare the cost of a teardown & rebuild to that of an occasional quart of oil and maybe, maybe a fouled plug now and then. That GK should have plenty of grunt to keep you grinning, with some to spare, even if it's not 100%. My vote: Wait...
  6. robertbarr

    O-ring size

    That's a good thing, because I gave you the wrong AS568 number! The -010 is the correct size for the fuel tubes, not the inlet seat. For that, a -903 fits perfectly. This size equates to 7.65mm ID x 1.63mm cross section, which is extremely close to what you have.
  7. robertbarr

    O-ring size

    -010 (Dash 10) in AS568, Buna only. Should be readily available.
  8. robertbarr

    Red Loctite on fuel mixture screws.

    Makes me wonder what kind of sick saboteur would put red loctite on mixture screws...
  9. robertbarr

    anyone go for a ride today? Pics?

    6 degrees F? Wow, you win. I've ridden in the lower 20's back when my original GS850 was my only transportation, dodging ice patches, but 6? And it looks like I missed any post about that cute little wire-wheeled Suzy in the picture!
  10. robertbarr

    650 gs carbs...Steve?

    I have a whole rack of CV, origin unknown. Free for the hauling. These have been stored indoors for about 20 years. The screws on these have proven stubborn; I could ungang #1 to cut down on shipping cost. (What Suzukis came with CV's with tops that had "Mikuni Corporation" cast into them...
  11. robertbarr

    Cycleorings has ceased operation

    I've been remiss in not expressing thanks for all the positive sentiments. I really appreciate it. I go in Monday at Hines VAH for an angiogram and maybe a little more cardiac plumbing so I'm fit, cardiac-wise, for major surgery. I found a top-flight thoracic surgeon who might - probably will...
  12. robertbarr

    O-ring sizes, as promised.

    First, the intakes. These are ALWAYS Viton. Anything else will burn. These are known as 'dash' sizes, an AS-568 sizing scheme. It does keep things simple... 28mm = -122 aka 'Dash 122'. And so on. 30mm = -123 32mm = -125 38mm = -128 40mm = -130 Metric sizes: Are specified by INNER...
  13. robertbarr

    Cycleorings has ceased operation

    The timing was medically necessary; I have acquired a case of Stage III -x (TBD) lung cancer, with a tumor slightly larger than a league baseball in my upper right lung. It's encroaching on some vital pulmonary passages, causing bouts of nonstop coughing. I've been using what little traces of...
  14. robertbarr

    New Owner of 1980 GS450 - Carb Help Needed

    Nitrile will be fine. You need the Viton for the intake O-rings, since they are in direct contact with the cylinder head. Even then, they don't last much beyond 6 - 8 years, IME.
  15. robertbarr

    New Owner of 1980 GS450 - Carb Help Needed

    There are Suzi twins that use basically the same carbs as their inline-4 cousins. The 80-82 450's aren't in that category -- they're entirely different. Hence the separate kit. For your emulsion tube, you need a 1.1mm x 3.1mm (cross section by ID). I've tried O-rings that were extremely...
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