DIY: Charcoal Canister Removal on F800GS (with pictures!!)

Discussion in 'Parallel Universe' started by Y E T I, Aug 28, 2009.

  1. Gangplank

    Gangplank Advenchaintourer

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    In this diagram:
    [​IMG]

    What I am wondering is why not use a small in-line fuel filter instead of the air filter? Does the air filter prevent water from getting through?

    Also on the side with the Fuel Tank Breather Valve is capping it the best?

    I just did a tank swap and removed the charcoal canister on my F650GS (EU tank holds more fuel). I plugged the breather valve. I have noticed on cold starts a bit of hesitation so I am planning to install some sort of a filter on it. Not sure if I'll use an inline fuel filter or air filter of some sort.
  2. Full Power

    Full Power Long timer

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    Cold Start hesitation is more likely a sign of your BATTERY getting tired than anything to do with vent,vacuum or vapor control lines.
  3. Gangplank

    Gangplank Advenchaintourer

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    Sorry, but I phrased that wrong writing too quickly... I didn't mean cold startup hesitation but instead...

    After starting up... when I go to start riding the bike feels like it is not producing power from the initial throttle roll on or tip-in. It goes but it seems like it is not getting the right fuel mixture. I think this is because the Fuel Tank Breather Valve is plugged and so it is trying to open and let air from the char can into the throttle body AND the fuel map is expecting it but the line is plugged.

    I am guessing that you are not feeling this on the F800GS b/c the added HP and different fuelling may mask the feeling.

    Has anyone tried running it with the line open or with an in-line fuel filter or in-line air filter in place instead of plugging the line?
  4. picard

    picard engage!

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    I would be willing to bet that the additional air flow from the canister is completely negligible compared to the intake air flow of the bike.
  5. Gangplank

    Gangplank Advenchaintourer

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    Yep confirmed talking to a local mechanic the best routing is to just plug the Fuel Tank Breather Valve & vent the tank to atmosphere or a filter.

    :-D. All set now
  6. gspirate

    gspirate Been here awhile

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    Im currently searching to purchase an 800GS and have been researching. Ive done a lot of searching on this topic and have a couple of questions. If any of this is already posted i apologize in advance. Just wanna make the best decision on the new bike.

    1. Has the set up of the vent lines off the canister changed over model years, specifically 2012/2013 models?

    2. With everybody coming up with solutions for the issue, has anybody outside of the US posted detailed pictures of how their bike is set up since they do not have the canister. ie.. no line at all out of tank or line just running to X location to vent? Since non US bikes done have the cannister why reinvent the wheel instead of setting up like their bikes?
  7. Gangplank

    Gangplank Advenchaintourer

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    1. Yes. They changed it in 2010 by adding a Y to the system. No problems since.

    2. Pictures no, but I did post up here how it is done on the EU bikes. It vents to atmosphere.
  8. gspirate

    gspirate Been here awhile

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    Thanks!
  9. JRWooden

    JRWooden Long timer

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    I have a 2009 model year, and had a recall done to add the "Y"

    I was thinking that on the EU bikes that the 2-way check-valve was still used ... but can not swear to that............
    I see no reason to keep that valve, but I do think the EU bikes have it, likely to reduce the "breathing" of the tank to the atmosphere...
  10. Gangplank

    Gangplank Advenchaintourer

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    If you mean the roll over safety valve then yes they do.
  11. JRWooden

    JRWooden Long timer

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    sorry to be fuzzy ...
    In addition to the tip-over valve I think I understood that the EU bikes also have P/N: 16 11 7 721 943 "VENTILATION VALVE"

    the pressure/vacuum check valve but I could be wrong...........
  12. Gangplank

    Gangplank Advenchaintourer

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    According to realoem.com it looks like they do have it. What they don't have is the charcoal canister and the entire Ventilation Emissions Monitoring System parts 16 13--- and the FUEL TANK BREATHER VALVE no. 13901465030 (04 in the diagram below).

    [​IMG]
  13. JRWooden

    JRWooden Long timer

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    Thanks GP
    I didn't realize they had the Euro parts fiche as well...
    and yeah... looks like the ventilation valve is a common part on both bikes:

    16117721943
  14. Full Power

    Full Power Long timer

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    My 2013 model looks very similar.... but I can't figure out HOW to remove it.
    Unplugged everything, can't fit it through the frame rails, it appears TRAPPED, as if they welded up the frame around the charcoal.
  15. 20Fingers

    20Fingers MCarrera GS-Giants

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    I have the same issue, not enough room to remove the canister and I found nothing with the 2013 F800GS, specifically. Unless someone comes up with a way to remove the canister, without pulling the rear shock, I am simply going to alter it and leave it in place. This will save some time if I ever need to return the bike ti OEM status.:evil

  16. (I^2)R/746

    (I^2)R/746 Rider

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    You guys are funny. I just did this in like 30 minutes. Did it just like the R1150GS. Tank vents to ground old school style, took off the solenoid to the TB's, stuck a bolt in the hose to plug it and secured with safety wire, left the plug disconnected to the solenoid no problems. Can was a pain to get out took some hassle had to remove the front sprocket guard but whatever. Need the space for the new shock I'm getting it has high and low speed compression. Anyways runs like a champ just like my other GS. If they start smogging bikes in CA I'll probably move to OR or WA. Place is already stupid enough with gun laws, divorce laws, taxes..... you name it. Don't get me started on the hassle I went through to smog my 49 state truck I bought here from a dealer used and have never had out of state. Stupidity. Anyways easy deal guys just freaking do it.
  17. MTrider16

    MTrider16 Ridin' in MT

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    Horsepower, the 2013 bikes and newer might be different with the larger fuel tank.

    Pre-2013, is easy, and yes mine happened to fall off during some routine maintenance. :wink:
  18. (I^2)R/746

    (I^2)R/746 Rider

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    You Sir, are the very first person to name me by my translated user name! Somebody finally got it :clap

    Yes mine is a 2009 I assume some stuff has changed. I was mostly concerned the system would miss the solenoid (throw an error) but it hasn't. It was so similar of a setup to my 2002 R1150GS I was pretty surprised. Chances are it hasn't changed to this day outside of routing and placement. Anybody that understands the basic principle of what is mechanically required should have no problem. For the rest of the folks.... this thread delivers! Just encouraging people to get in there and get the job done it's so easy. As for the "smog cops" coming to get you I think there's just as much a chance of getting busted for taking the tag off your mattress.....
  19. MTrider16

    MTrider16 Ridin' in MT

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    746 is the common conversion from watts, then... well just call me a geek engineer. :wink:

    From the complaints, above it almost sounds like the fuel tank intrudes on the space by the canister and makes it difficult to remove on 2013 and newer bikes. But maybe I'm reading wrong.
  20. NumberCruncher

    NumberCruncher Been here awhile

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    Resurrecting this thread from beyond the grave . . .

    I just read about the tank cracking issue and sure enough my one year old F800GS has a cracked tank. I never removed the CC but may now; after I get the dealer to install a new tank.

    Has there been any new consensus as to whether the CC is causing the tank issue? I have to believe even with the CC in place the tank can vent properly and cracking shouldn't be an issue and yet it only seems this is happening on US bikes. Has anyone who has had a replacement tank installed had the problem NOT return either with or without the CC in place? I removed the CC on a Ducati I purchased and I assume it is the same basic process for this bike. I'll wait to get a new tank on it before I do so. I guess I can always reconnect the canister.

    NC