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Old 01-03-2009, 11:14 PM   #1
chunter OP
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My F800gs STALLS LIKE ITS RUNNING OUT OF GAS! PLEASE HELP!!

Hi Everyone,

I have a new F800gs that now has 350 miles on it. I have been having an issue with it stalling for the last few days. The first time it happened, my display showed about 65 miles range remaining, and it happened at low RPM. I started it back up and made my way to a gas station. On the way there, it cut out about 10 more times at various speeds and RPMs. When I got to the gas station, I put 2.5 gallons into it (full), and after a few minutes, it ran fine. No further issues.

Puzzled by this, I drained the tank down (with a pump) nearly to the point of the light coming on. It ran with no issues for about 20 miles.

I wondered if there may have been a clog in the air-inlet to the gas tank or something. I filled the tank back up, and did some more riding. I emailed the dealership to ask if there were any software updates or open items for my bike, and they said there were not. He said that I should try opening the gas tank if it happens again because there may be negative pressure there.

Today, when the tank got back down to about 65 miles range (again), the bike sputtered out (again). It had run perfectly for the entire tank of gas until that point. I opened the gas cap, closed it, and started it up again. The bike did run for about 3 miles but then had the same issue. From that point on, it didn't matter how much I opened the gas tank, it made no difference. I filled the tank back up to the top (3.2 gallons), and have run another 50 miles since then with no issues.

Does anyone have any idea what could be going on? I am skeptical about the vent tube to the gas tank being the issue because wouldn't opening the gas tank solve that? If that were the issue, would it run perfectly until the tank got down to 65 miles range? Please give me your thoughts.

Aloha,
Charlie
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Old 01-04-2009, 03:10 AM   #2
Bigem
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If its at the point where it plays up at the moment, take it for a ride with the tank "open" but taped over. So it should not play up if the breather is actually blocked, but, I thought they where a pressurised system?

It could be that the valve in the cap has failed and does not allow the tank to adequately pressurise when the fuel quantity gets low. I could be completely off track but it might be worth a go? Sounds very odd. Best of luck and keep us posted when you find out what is causing it.
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Old 01-04-2009, 09:03 AM   #3
wirewrkr
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one of the reasons to buy a new bike is because of the warranty.
Take it back. Document everything.... twice
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Old 01-04-2009, 09:22 AM   #4
One Eye Mike
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Mine has done this as well as eveyone I know who bought one before it snowed. To date, I have not heard the reason why.
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Old 01-04-2009, 10:00 AM   #5
cisco
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Pissed Same here

Mine did this on the way to my 600 mi. service. I road it from Flagstaff to Tucson with one stop for gas. As I got close to Tucson the traffic slowed for the construction. The engine died as if I shut it off,Would not re-lite with the tire turning at 60mph in the fast lane. I pulled over and it restarted in neutral. This happened one more time on the freeway, and again at the exit. Then at every stop lite on the way to the shop. It finely would not restart. I got a free ride on a tow truck to the dealer that was waiting for me to show up after hours.They found me a room for the night( thanks John). The next a.m. I went to the shop,my bike was on the work stand. After completing the service the tech started in on the stalling. NO codes. They let the the bike sit running until the fan came on, it ran and ran. The tech went on a short ride, still running fine. They let it run an other 30 min. , Finally it stalls! The whole shop started to cheer. Ok lets bypass the charcoal canister. Restart.... runs fine, " this must be the problem", no sooner did he say that the thing dies. OK maybe that wasn't it. Let's check the relays. This one doesn't sound right. Change the relay, runs and runs.Cool I can make it back to Flagstaff before the snow sticks. It dies again. Only thing left is the fuel pump, not in stock. The dealer sets me up with a scooter to get home( thanks again John) and I got there just as the snow starts to stick.That was three weeks ago, and still no fuel pump. The service manager informed me on Friday that BMW has the pump on back order! with 40 inches of snow on the ground and more on the way it's not urgent, but what if I was traveling. The only thing the dealer can do is diagnose the problem and order parts. It seems that BMW keeps hamstringing their dealers, first the delay from March to Sept. now not backing them with parts. I got rid of a 950 Adv. because of this kind of BS. I hope this is the end and not the beginning.
Cisco

cisco screwed with this post 01-04-2009 at 10:02 AM Reason: spelling
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Old 01-04-2009, 10:11 AM   #6
chunter OP
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Quote:
Originally Posted by cisco
Mine did this on the way to my 600 mi. service. I road it from Flagstaff to Tucson with one stop for gas. As I got close to Tucson the traffic slowed for the construction. The engine died as if I shut it off,Would not re-lite with the tire turning at 60mph in the fast lane. I pulled over and it restarted in neutral. This happened one more time on the freeway, and again at the exit. Then at every stop lite on the way to the shop. It finely would not restart. I got a free ride on a tow truck to the dealer that was waiting for me to show up after hours.They found me a room for the night( thanks John). The next a.m. I went to the shop,my bike was on the work stand. After completing the service the tech started in on the stalling. NO codes. They let the the bike sit running until the fan came on, it ran and ran. The tech went on a short ride, still running fine. They let it run an other 30 min. , Finally it stalls! The whole shop started to cheer. Ok lets bypass the charcoal canister. Restart.... runs fine, " this must be the problem", no sooner did he say that the thing dies. OK maybe that wasn't it. Let's check the relays. This one doesn't sound right. Change the relay, runs and runs.Cool I can make it back to Flagstaff before the snow sticks. It dies again. Only thing left is the fuel pump, not in stock. The dealer sets me up with a scooter to get home( thanks again John) and I got there just as the snow starts to stick.That was three weeks ago, and still no fuel pump. The service manager informed me on Friday that BMW has the pump on back order! with 40 inches of snow on the ground and more on the way it's not urgent, but what if I was traveling. The only thing the dealer can do is diagnose the problem and order parts. It seems that BMW keeps hamstringing their dealers, first the delay from March to Sept. now not backing them with parts. I got rid of a 950 Adv. because of this kind of BS. I hope this is the end and not the beginning.
Cisco
Thanks Cisco,

Would yours run normally on a full tank of gas? If it were the fuel pump, would the fuel level matter?

I hope to hell that my local dealer can fix the problem. They don't get many of these bikes out here. I want to go armed with a list of possible causes to the issue.

Aloha,
Charlie
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Old 01-04-2009, 11:09 PM   #7
tmex
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Quote:
Originally Posted by One Eye Mike
Mine has done this as well as eveyone I know who bought one before it snowed. To date, I have not heard the reason why.
Interesting. I wonder if altitude or barometric pressure changes are somehow fooling the FI system and leaning the bike out to the point of stalling. It would be prudent to get the latest firmware version installed. I have heard lots of reports about bikes stalling in rain which usually occurs in conjunction with low barometric pressure.

That explanation fails to explain the correlation of the problem with fuel level, but perhaps there is some tie in that is not obvious. It would seem unlikely that it is a cannister problem, but certainly possible. Cisco, are you sure the tech by-passed the cannister properly? Did you see him do it?
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Old 01-05-2009, 06:07 AM   #8
cisco
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Quote:
Originally Posted by tmex
Interesting. I wonder if altitude or barometric pressure changes are somehow fooling the FI system and leaning the bike out to the point of stalling. It would be prudent to get the latest firmware version installed. I have heard lots of reports about bikes stalling in rain which usually occurs in conjunction with low barometric pressure.

That explanation fails to explain the correlation of the problem with fuel level, but perhaps there is some tie in that is not obvious. It would seem unlikely that it is a cannister problem, but certainly possible. Cisco, are you sure the tech by-passed the cannister properly? Did you see him do it?
The tech pinched off a hose under the seat (vac?). The bike had the latest specs. It would die as if I cut off the switch, no stumble just off.
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Old 01-04-2009, 10:12 AM   #9
chunter OP
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Quote:
Originally Posted by wirewrkr
one of the reasons to buy a new bike is because of the warranty.
Take it back. Document everything.... twice
Robert
Thanks Robert. I'll follow that advice.

Aloha,
Charlie
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Old 06-13-2009, 05:20 PM   #10
solohvs
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Heavy Rain - My GS stalled !

Oh my god - my worse fears are about to be realized. The "go anywhere" and "do anything" combat touring motorcycle didn't make it back form the first storm of the season. BMW's F800 GS does not run in the rain.

OK - if you want to be ready for rain you should go out and practice before you're a thousand miles form home. So the clouds rolled in and I went for a spin. The rain was very hard and it came down in buckets. I was traveling along in traffic when the tach goes to ZERO and I'm rolling down the road at 40 mph. I gently slipped the clutch and the compression almost cause a high speed skid so I rolled to the side of the road to get out of the way of all the cars and trucks.

At first the engine would NOT restart and I sat in the rain for a long while - in a complete state of shock and dismay. It eventually restarted but ran very rough all the way back.

I ran my Honda 750 in the rain - the 919 was never bothered and the VFR ate up miles of interstate in thunderstorm after thunderstorm on my last tour - high speed touring with torrential wind driven RAIN for hour after hour. My rain gear worked and so did my motorcycle!

Today I was stuck on the side of the road five minutes from home - some %$#*ing adventure type guy am I. FIRST TIME EVER. The most expensive bike I ever bought and it won't run in the rain. Ten minutes into a storm and the party is over!

Anyone want to comment?
Yea the new guy is pissed.
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Old 06-13-2009, 06:21 PM   #11
DockingPilot
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Make sure you report it to your dealer or BMW NA.
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Old 06-20-2009, 06:21 PM   #12
solohvs
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They took my new bike

The dealer went over my bike on Friday for the stalling issue and there were no fault codes and no sign of any water. There was no information available to suggest an ongoing problem with this model and nothing from BMW NA.

On Saturday I was caught in the rain again and within minutes the stalling was enough to cause me to cancel my plans to tour all weekend and head for the dealer. A real let down.

Water is backing up into the evap canister and the fuel tank can't breath. There is a problem with the vacuum system that could not be resolved. A drain tube was added to just divert the water, but the mechanic was NOT comfortable with all the loose ends and I was asked to leave with a DEMO F800 GS (and not ride in the rain).

1300 miles and my new GS is in the shop and cannot be repaired.
The Dealer will contact BMW NA on Monday and determine what the "fix" will be. I have seen as many posts explaining that the problem does NOT exist as I have seen where the problem does exist.

What now?

Brian
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Old 06-20-2009, 07:45 PM   #13
GB
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How about you remove the evaporative cannister.. the US is the only market in the world to have it.. I've ridden in the rain with mine without any issues. My bike has no cannister.
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Old 06-21-2009, 01:18 PM   #14
outpostbabu
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Quote:
Originally Posted by solohvs
I have seen as many posts explaining that the problem does NOT exist as I have seen where the problem does exist.

What now?

Brian
Each complaint is a vote for a fix so bringing it up to the dealer, BMW NA, and posting in forums like this is helpful to the rest of us experiencing the problem. My dealer claimed to have never of heard of such a problem with the bike. I find it hard to believe given the number of people experiencing issues.
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Old 06-21-2009, 09:49 PM   #15
never.ride
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Stalling - NO Rain riding!!

My bike, which has 1300 miles on it now has had stalling issues with NO rain involved. Been riding about 70/30, dirt to street.

First time was with approx 300 miles on the clock. Happened after a bout 3 hours high up in the mtns, over 8500 feet. It would cut out in 1st or second at low/idle RPM's. Then, when I tried to start it would instantly die. Had to rev the RPM's and drop in in first to get going.

Took it in for the 600 miles and they said, "weird". They re-set the "adaptations" saying I probably messed them up when I rev'ed the engine to start it. I had to pay for this.

Now, 1300 miles in, and I'm having the same thing, but worse and more often. Only happens after I riding for a few hours, which always ends up being over 8500 (I live in Boulder, CO). It would just cut out all the time, especially after I shut it off for a few minutes. Would be really hard to start as well, jut cut right out. Caused me to drop the bike on pavement once, which was a total drag.

Let it sit in my cool garage for a 2 hours once I got home and the same thing, sputtering and then cut out in neutral.

Obviously I'm gonna call the dealer, but anyone have any suggestions or thoughts?

Thanks in advance!!

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