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Thread: Function of charcoal canister connections...not the usual question

  1. #1
    Has the GS-Lust The_Veg's Avatar
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    Function of charcoal canister connections...not the usual question

    ...And before you suggest removing the canister from the bike, I've already done so...and that's where the question comes in.

    Years ago I removed the canister from my '07 R1200GS, tossed it in a box, and forgot about it. I don't even have that bike anymore (moved on to a '12 that was already de-canisterised), but I still have its canister and now I have a use for it.

    Not long ago I purchased an old British sports car that has a tank-venting setup that basically just vents to the air through a large hose, causing evaporative losses of fuel and nasty fuel-smell in and around the car. My thought is to re-purpose the old GS canister in this car, and it looks like it should work except for one thing: there's a third connection on the canister and I don't know what it does. It's on the opposite end to the other two connections, and it's a larger diameter than the other two. I can't for the life of me remember what it was connected to on the bike. Does this third connection need to be connected to something for the canister to function properly? If so, is it anything special that would preclude using this canister and therefore require me to buy another type instead?
    2012 R1200GS

    "If you can't fix it with a hammer, it's electrical." -somebody's dad

  2. #2
    Aspiring Profligate Jeff488's Avatar
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    This link has a diagram in it, and should be helpful. Perhaps by process of elimination you can figure out what does what.

    http://www.ibmwr.org/r-tech/oilheads...Canisterectomy
    '08 BMW R1200RT
    '75 Red R75/6
    '08 Suzuki DL650 "Screaming Yellow Zonker"
    Looking for Ed Sanders' Truck Stop.

  3. #3
    Registered User BobbyB26's Avatar
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    Quote Originally Posted by Jeff488 View Post
    This link has a diagram in it, and should be helpful. Perhaps by process of elimination you can figure out what does what.

    http://www.ibmwr.org/r-tech/oilheads...Canisterectomy
    That write up works for the 1150 and will be useful for my wife's bike when the time comes. Anyone have this same write up for an '05 1200?
    2005 R1200RT
    2008 R1200RT (Wife rides....I fix)

  4. #4
    Quote Originally Posted by BobbyB26 View Post
    That write up works for the 1150 and will be useful for my wife's bike when the time comes. Anyone have this same write up for an '05 1200?
    Should be essentially the same. Details may vary a little bit.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  5. #5
    One hose from the tank vent. One hose to the solenoid (then to the throttle bodies). One hose to the atmosphere down by the foot peg.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  6. #6
    Registered User BobbyB26's Avatar
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    The canister on my '05 is in/behind the front right tupperware, and is smaller....so wondering if the same plumbing schematic holds true, or if things changed with the new model year??
    2005 R1200RT
    2008 R1200RT (Wife rides....I fix)

  7. #7
    Aspiring Profligate Jeff488's Avatar
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    Quote Originally Posted by BobbyB26 View Post
    The canister on my '05 is in/behind the front right tupperware, and is smaller....so wondering if the same plumbing schematic holds true, or if things changed with the new model year??
    I guess you could look and see.
    '08 BMW R1200RT
    '75 Red R75/6
    '08 Suzuki DL650 "Screaming Yellow Zonker"
    Looking for Ed Sanders' Truck Stop.

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