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Thread: Sending my Bing Carbs out for rebuild to..............?

  1. #1
    '92 R100GS '81 R100/t brittrunyon's Avatar
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    Sending my Bing Carbs out for rebuild to..............?

    (I rebuilt the carbs on my '92 GS and it worked out great, but at the moment I don't have the time to do it myself so I'm thinking of out sourcing.)
    I've got a 1981 R100 with Bing 40's & they need help.
    Who's the best?
    I wonder how much $?
    Thanks
    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
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  2. #2
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    There was an article in the recent MOA magazine of almost the exact same ones you mentioned. I think the cost was around $600 for the pair.

    Look up the article. They were sent to Bing USA.

  3. #3
    Sir Darby Darryl Cainey's Avatar
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    Yes, I wrote the article and I am very happy with Bing service.

    $655.42 which included the Independent Alcohol Proof Float Kit.
    Ambassador BMW MOA Ontario Canada
    President Niagara BMW Riders #298
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    1977 R100RS, (Retired) 1993 R100GS (just getting started)

  4. #4
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    Gosh! The Bings are some of the easiest and quickest carbs to redo. You should really squeeze the time out of your schedule. I did mine on my R100S in half a day, maybe less.

  5. #5
    One big Oaff brewmeister's Avatar
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    Try Glen at Thoroughbred cycles 262-642-7111, he did my 40 mm bings for about 150.00 and he's top notch here in Wisconsin.No problems since!
    Last edited by brewmeister; 04-25-2013 at 07:38 PM.
    81 R100RT

  6. #6
    Alps Adventurer GlobalRider's Avatar
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    Quote Originally Posted by Darryl Cainey View Post
    Yes, I wrote the article and I am very happy with Bing service.
    Do you mean Bing Agency?

    If so, they have a tough enough time sending you the right needles.

  7. #7
    Total Freak mikegates's Avatar
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    Like Brewmeister said Call Glen Bishop
    95 R100Rt, 07 650 GS
    Mike
    Eagle, wi
    "He's gone and nothin gone bring him back"

  8. #8
    Registered User lmo1131's Avatar
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    You should really squeeze the time out of your schedule.
    +1 Make time and DIY and you will know what you have. My $.02.
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  9. #9
    '92 R100GS '81 R100/t brittrunyon's Avatar
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    Wow, $600, really?
    Thanks for the Glen connection.
    My gut feeling is that I'll be finding the time.
    Thanks for the info.
    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
    My riding videos @ http://vimeo.com/user2721333/videos

  10. #10
    Registered User toooldtocare's Avatar
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    +2 on doing them yourself. I could easily find the time to save a few hundred dollars since it only takes a couple of hours to do the job. Unless you have worn throttle shafts, there is no need to do much more than clean (overnight soak) and replace the gaskets and floats (with newer style) and the diaphragms.

  11. #11
    Administrator 20774's Avatar
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    The one thing that I have yet to do on my carb rebuilds is replace the throttle shaft o-rings. Here's where I say to not completely dunk a carb and soak for long term. In general, I don't think these o-rings need to be replaced that often. It gets a little dicey IMO to remove the two screws holding the butterfly in place and then repeening them to ensure they don't loosen up and get sucked into the engine.

    And don't forget the resources some of the members have provided in their postings about carb rebuilds...see the thread on Rebuild-Sites-with-Photos. Also, there are many other websites listed in the Resources-and-Links thread in the Carb Tuning and Overhaul section. Lots to give you visuals to guide you along.
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  12. #12
    Registered User toooldtocare's Avatar
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    Kurt, I never though about those O rings, maybe I got lucky with my over-night soak. I use de-natured alcohol that I get from Lowes, maybe it does not hurt rubber like a petroleum product would. I then use standard carb cleaner in a spray can to clean out the ports, etc. I have been doing this for years too?

    Wayne

  13. #13
    Registered User lmo1131's Avatar
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    Where is that MOA discussion topic? I can't find it using the search feature. As I recall it was pretty thorough discussion too. Wasn't it finally decided that the butterfly screws could be secured with Loktite Blue? It's what I used and I'll tell ya, they're in there and they're not moving. Just do NOT use RED Loktite.

    At some point you'll want to remove the shafts to determine it they are wearing to any substantial degree and that the o-ring is okay. I'd rather take them all the way down and know that the o-rings are good, than go through the whole ordeal and discover that "something ain't right" and have to do another tear down to find the gremlin that's affecting idle. But that's just me.

    If you DO pull the shafts, remember to apply a tiny bit of lithium grease to the exterior of the o-ring so the shaft will slide into the carburetor body and rotate freely. Put it together "dry" and you may discover that the engine will not return to idle smoothly... . and I know this, how?
    "It is what you discover, after you know it all, that counts." _ John Wooden

    Lew Morris
    1973 R75/5 - original owner

  14. #14
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    Finding those links

    Click on the hyper-links in his msg - will take you right to them.

  15. #15
    Registered User dmftoy1's Avatar
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    Arrow

    Fwiw, I just did two 32's for my R90/6 and with the bing DVD it was a piece of cake. The butterfly removal was easy but I spent probably 10-15 minutes fiddling with the reinstall to ensure I had it properly aligned. Not at all hard just frustrating.

    Every o-ring on mine was brittle to the point of crumbling but my bike is almost 40.

    If you do attempt it order new screws (stainless) for the carb tops and new butterfly screws as they don't come in the "standard" kit. $2.72 and it cost me more in gas riding around trying to find proper stainless flat head machine screws in 5mmx10 (I think that's right but don't quote me. )

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