My F800gs STALLS LIKE ITS RUNNING OUT OF GAS! PLEASE HELP!!

Discussion in 'Parallel Universe' started by chunter, Jan 3, 2009.

  1. WoodWorks

    WoodWorks House Ape

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    And yet So. Africans have been through two summers since the bikes have been released down there, and Australians, Argentines, and other southern hemisphere dwellers have been through one summer. AFAIK, they got the same fuel pumps we Yanks got, and it gets plenty hot in the summer in those places, but I haven't heard of any problems with heat/stalling from them. So I'll take that bet.

    David
  2. DolphinJohn

    DolphinJohn Caveman

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    Nah, I don't think it's the heat. I've ridden in plenty hot weather, in traffic, with the fan coming on, and never stalled.
    Sunday when riding in the rain, the temps dropped down to low 70s with the
    severe storms. Rain, heavy rain at speeds above say 45, seems to be the problem. For me anyway.

    Does anybody have pics of the canister removal? The link posted earlier in this thread is from December and the pics are gone.
  3. ROYAL COACHMAN

    ROYAL COACHMAN Been here awhile

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    The first time the bike stalled recently after the block off plates where installed, I was on my way to the swinging bridges ride here in Missouri.

    About 60 deg F overcast and running down the hwy for 30 miles with full tank of gas.
    Get off at exit, pull in clutch to down shift and bike stalled.
    Hit starter button and it fires up and I continue about 1/2 mile to meeting place where it stall's again entering parking lot.

    Bike stalls one more time about 20 miles into ride and never stalls again for another 600 to 700 miles.
    The last time it stalled I was 30 mile up the river road on the Illinois side of the Mississippi and it stalled pulling into a parking lot. 70 deg with blue skies and 1/2 tank.

    I have put on about 200 miles since then with no problems.
    Glen
  4. ROYAL COACHMAN

    ROYAL COACHMAN Been here awhile

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    FWIW I rode my bike to Jefferson National Barracks Cemetary this past Sunday to visit my father and plant flags with my sons Boy Scout troop.
    Being Memorial day weekend it was very crowded.

    80 deg plus and very humid. Spent about 45 minutes in first gear with a lot of clutching and the cooling fan ran almost the entire time.

    Same scenario leaving to go home and the bike ran perfect the whole day.
    I give up trying to figure this out:dunno

    Glen
  5. ]I)Money

    ]I)Money D NOT I

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    Hey, Glen, if it happens again, would you mind opening your gas tank right away, to check if it's got a vacuum on it?
  6. ROYAL COACHMAN

    ROYAL COACHMAN Been here awhile

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    I will make a mental note and remember to do that CJ

    And by the way, thank you for your service from my family:devildog
  7. outpostbabu

    outpostbabu Been here awhile

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    I'd like to add to the complaints here. I just got back from a 6000 mile trip across the US, having never had this stalling issue. Never, that is, until my return trip when it rained constantly, but not heavily, for two days. The first time it happened I was making a turn at an intersection, in the rain, in traffic. The bike just cut off. Fortunately I was going slow so I didn't fall but I did come to a complete stop right in the middle of the intersection. Not the safest place to be. After that the bike would consistently stall in the rain any time I downshifted. This happened 5 or 6 times over the course of two days, and only in the rain. Some of the time I could restart it by coasting with the clutch in and hitting the electric start but most of the time I had to coast into the emergency lane and try restarting it once or twice. I let it sit at a gas station for awhile and it would be alright for 10 minutes or so back on the highway but after that the problem would return. When the rain went away, the problem went away.

    Previously I had a problem with my fuel indicator not working which was blown off by the dealer as a non-issue. On this trip I had the vacuum sound when opening the gas tank. I'm certain all of these things are related. There's still no bulletins or recalls for any of this? :huh
  8. The Griz

    The Griz Long timer

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    This post is from a guy named Fred over at F800riders.org. Seems to have solved his stalling issues. This is what I'm going to do before my upcoming trip.

  9. outpostbabu

    outpostbabu Been here awhile

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    Fred's fix is interesting but sounds like it could be a false positive.

    "Hi all, no pix yet because it was pouring down rain all day including 100 miles on the Interstate. No stalling or even close to it. I don't know if I had the problem before so I can't tell if the pre-filter is the reason.

    I will say the bike had a few minutes of running roughly but that was indiagnosed, felt like bad gas to me. It never stalled though.

    Fred"

    If the pre-filter works, why wouldn't you just use an oil foam filter? I'd be willing to give either a shot but it sounds mostly like conjecture so far.
  10. The Griz

    The Griz Long timer

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    I wouldn't be so quick to lay down judgement. Have you installed this fix and tested it?

    According to my research, there are three possible causes. All of which could be happening at the same time or individually.

    1) Water entering the air intake snorkel and getting into the air box, in turn getting the mass oxygen sensor wet (which resides right beneath the air filter element itself in the airbox. You'll see a wire and connector for it on top of the air box.)

    2) Charcoal canister filling with fuel/water and not letting the tank vent properly.

    3) Fuel pump failure.... which is associated with fuel guage error.
  11. bxr140

    bxr140 Flame Bait

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    <o:p></o:p>
    I thought the same exact thing when I read YOUR post! <?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><v:shape id=_x0000_i1025 style="WIDTH: 11.25pt; HEIGHT: 11.25pt" alt="0" type="#_x0000_t75"><v:imagedata o:href="http://s3.amazonaws.com/advrider/naughty.gif" src="file:///C:\DOCUME~1\randolpb\LOCALS~1\Temp\msohtml1\01\clip_image001.gif"></v:imagedata></v:shape><o:p></o:p>
    <o:p></o:p>
    I certainly don't think a prefilter will hurt anything, but Fred's solution is based on the premise that water in the airbox is actually the problem. I've seen no conclusive evidence to support that theory either way, especially considering the reports of stalling in fair weather. One might even contest that the sporadic nature of this anomaly would suggest that its likely NOT a ‘mechanical’ issue like water in the airbox, though there's certainly not enough evidence to eliminate it completely from the fishbone.
    <o:p></o:p>
    <o:p></o:p>
    <o:p> </o:p>
    I’m leaning towards a carbon canister/vacuum based problem (not necessarily ‘filled with stuff'), though my own experience with a fuel pump replacement doesn’t rule out #3. It hasn’t rained since I had my pump replaced a couple months ago, and while it solved my gauge issue, I can’t tell if it solved the stalling/poor running problem. <o:p></o:p>
    <o:p> </o:p>
    <o:p> </o:p>
  12. outpostbabu

    outpostbabu Been here awhile

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    My point was, Fred has *never had* any stalling issues according to what he said in the prior post that I quoted. Its good information and a possible solution. I'm just saying Fred could have put a sock on his mirror and had the same result, no stalls, because his bike wasn't stalling to begin with.

    There is a lot of good information in that thread though and over at f800riders.org in general so thanks for posting it nonetheless.
  13. DolphinJohn

    DolphinJohn Caveman

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    Should I use a tube sock, or will a short sock do? Does it matter which mirror? :ear





    :D

    I ordered the Blue Filter made by Green from Wunderlich
    (confusing enough?)
    http://www.wunderlichamerica.com/mm...A&Product_Code=8120013&Category_Code=F800GS-U

    I also plan to put the pre-filter material somewhere in the intake tube, and I am going to remove the canister.

    Isn't this fun?





    .
  14. outpostbabu

    outpostbabu Been here awhile

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    Not both at the same time I hope or we'll never solve this! :rofl
  15. The Griz

    The Griz Long timer

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    Seriously, man.....:nah
  16. The Griz

    The Griz Long timer

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    Are we positive that we need to remove the rear shock to remove the charcoal canister? That dude's walthrough on removing the canister over at F800riders.org seemed to think so. Why do you need to remove the rear shock? That's a lot of effen work!:huh

    I leave for a 3,000 mile trip very soon. I don't want to be puttering and stalling the whole way!
  17. The Griz

    The Griz Long timer

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    Just to be clear for those of us that were worried about freshly driving a screw into the fairing: A screw already exists in this position. If you look there, the OEM screw head has a plastic cap on it to hide it. You can remove this screw and use it to mount these plates.

    [​IMG]
  18. DolphinJohn

    DolphinJohn Caveman

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    There is another walk-through somewhere (no pics) that has it coming out
    without removing the shock. I will see if I can find it. IIRC he had to work at it some but it came out somewhere.
  19. The Griz

    The Griz Long timer

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    Looking at my bike, I notice that if you remove the screws that hold the Voltage Regulator on and move it aside (which is easy as heck), you should be able to get the canister out through there.
    [​IMG]
    [​IMG]
  20. DolphinJohn

    DolphinJohn Caveman

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