POLL: stator / alternator failure on F800GS/F650GS twins please vote!

JRWooden · 05-06-2012, 07:24 AM

It seems there have been many stator failures in the F800GS & F650GS twins due to overheating.
The stator runs in a very confined space with no provisions for air or oil cooling.
BMW has recently released a redesigned flywheel which will likely remedy the problem.
You can read all about it here: www.advrider.com/forums/showthread.php?t=706033
Post #399 has pictures of the new and old parts ...
Unfortunately, for those of us that are out of warranty, the new "generator set" is ~$900 USD.

The purpose of this POLL thread is two-fold:

1) Capture failure data vs. mileage (please vote even if you have NOT had a failure)
So as to determine the extent of this problem, and at what mileage failure is likely...

2) To PLEAD WITH ALL USA OWNERS that have experienced a failure to file a complaint with the US Government, regarding the issue esp. if you experiences surging or stalling (I would expect stalling) during the failure incident. (See post #420 of the above thread for details). This may help get resolution for the issue.
File a complaint(s) here: https://www-odi.nhtsa.dot.gov/ivoq/

dmasliah · 05-06-2012, 03:42 PM

2009 f800gs, No stator failure yet. I only have 8000 miles on the bike.

rockinrog · 05-07-2012, 08:40 AM

I really hated to vote in fear that I may jinx myself

JRWooden · 05-07-2012, 10:52 AM

yeah... maybe ...

I'd like to see lots more votes, but at this point ~20% of the bike over 20K miles have experienced a failure.....

sturgeon · 05-07-2012, 11:28 AM

Quote:

Originally Posted by JRWooden

yeah... maybe ...

I'd like to see lots more votes, but at this point ~20% of the bike over 20K miles have experienced a failure.....

Possibly due in part to the nature of such polls. I think you're unlikely to see anything close to true numbers of non-failures. I voted No Failure in over 20K miles, but I suspect most won't either even see this, or bother to look at it if they do, or bother to vote.

JRWooden · 05-07-2012, 12:53 PM

Quote:

Originally Posted by sturgeon

Possibly due in part to the nature of such polls. I think you're unlikely to see anything close to true numbers of non-failures. I voted No Failure in over 20K miles, but I suspect most won't either even see this, or bother to look at it if they do, or bother to vote.

I agree...
I want a STICKY
Who do I see about a STICKY ...

sturgeon · 05-07-2012, 01:57 PM

Quote:

Originally Posted by JRWooden

I agree...
I want a STICKY
Who do I see about a STICKY ...

Is that anything like a wedgie?

JRWooden · 05-07-2012, 02:30 PM

Quote:

Originally Posted by sturgeon

Is that anything like a wedgie?

Man................. I hope not... I can put my stock seat back on if I ever want one of those..............

vtbob · 05-07-2012, 08:29 PM

Like that has been said, the numbers of those with out failures will be light.
This group is a bit self selecting,,,focusing on this problem.
Still the number of failures are significant. And with this admittedly small sample, time correlated to usage.

A speculative conclusion 1 in 3 bikes will have this failure in the 20=40k mile bracket
1 in 5 bikes will have this failure in the 40-60k mile bracket

good work!

rockinrog · 05-08-2012, 07:08 PM

I don't know about "no failure" replies being light. It looks like around 85% of those that have responded are reporting no failure.

CheckerdD · 05-08-2012, 07:12 PM

The "no failures" seem to have it. Tipical of the internet. Prior to the poll the guy with the loudest mouth wins. Dave

rockinrog · 05-08-2012, 07:33 PM

Quote:

Originally Posted by CheckerdD

The "no failures" seem to have it. Tipical of the internet. Prior to the poll the guy with the loudest mouth wins. Dave

Of course 54% of those have less than 20,000 miles.

MonsterJ · 05-08-2012, 10:12 PM

I wish I could vote twice but it won't let me. I've got 2 '09 F800GS and both stators have failed. One at 25K and the other bike's failed at 50K.

skamikazee · 05-09-2012, 01:43 AM

Quote:

Originally Posted by CheckerdD

The "no failures" seem to have it. Tipical of the internet. Prior to the poll the guy with the loudest mouth wins. Dave

Actually the numbers on this Poll aren't that optimistic, if you do the math theres a 36% chance of your stator failing after 20K miles.
but if you take into acount that only the minority of the non faulty stator care to vote, and probably everyone on this forum with a faulty has voted (if they kept the bike)

JRWooden · 05-09-2012, 04:34 AM

IIRC, it was Joel's opinion that stator failures would not happen until ~40K miles ...
It takes many miles of cooking to git 'r done ...

Happy riders are of course less likely to vote.
We do have a pretty "young" population of bikes here....
So yeah... I don't think its "fair" to count the < 20K mile user base....

I'm going to open a separate poll for the F800S / ST users when I get time....
The fiche says they have the same generator set and they should have more miles on the bikes....

As I mentioned in the stator thread, I am optimistic that ElectroSport may come to the rescue of those of us out of warranty.

View Results: Please vote your situation & mileage AT FAILURE or multiple failures
NO failure - current mileage 0 - 20K miles	129	50.99%
NO failure - current mileage 20K - 40K miles	58	22.92%
NO failure - current mileage 40K - 60K miles	13	5.14%
NO failure - current mileage 60K+ miles	0	0%
YES - one failure at: 0 - 20K miles	6	2.37%
YES - one failure at: 20K - 40K miles	27	10.67%
YES one failure at: 40K - 60K miles	14	5.53%
YES one failure at: 60K+ miles	3	1.19%
MULTIPLE FAILURES	3	1.19%
Voters: 253. You may not vote on this poll

05-06-2012, 07:24 AM	#1
JRWooden ^OP Beastly Adventurer Joined: Jul 2008 Location: The great state of confusion Oddometer: 3,482	POLL: stator / alternator failure on F800GS/F650GS twins please vote! It seems there have been many stator failures in the F800GS & F650GS twins due to overheating. The stator runs in a very confined space with no provisions for air or oil cooling. BMW has recently released a redesigned flywheel which will likely remedy the problem. You can read all about it here: www.advrider.com/forums/showthread.php?t=706033 Post #399 has pictures of the new and old parts ... Unfortunately, for those of us that are out of warranty, the new "generator set" is ~$900 USD. The purpose of this POLL thread is two-fold: 1) Capture failure data vs. mileage (please vote even if you have NOT had a failure) So as to determine the extent of this problem, and at what mileage failure is likely... 2) To PLEAD WITH ALL USA OWNERS that have experienced a failure to file a complaint with the US Government, regarding the issue esp. if you experiences surging or stalling (I would expect stalling) during the failure incident. (See post #420 of the above thread for details). This may help get resolution for the issue. File a complaint(s) here: https://www-odi.nhtsa.dot.gov/ivoq/ JRWooden screwed with this post 05-07-2012 at 06:53 AM Reason: URL link broken

05-08-2012, 07:08 PM	#10
rockinrog Beastly Adventurer Joined: Mar 2008 Location: Central PA Oddometer: 2,500	I don't know about "no failure" replies being light. It looks like around 85% of those that have responded are reporting no failure. __________________ BRP 2010 and 2012 PA to Montana Rural Ramblings

05-08-2012, 07:12 PM	#11
CheckerdD Beastly Adventurer Joined: Apr 2005 Location: Dave Rankine, Reno NV Oddometer: 1,081	The "no failures" seem to have it. Tipical of the internet. Prior to the poll the guy with the loudest mouth wins. Dave __________________ Pavement! We don't need no stinkin pavement.

05-08-2012, 10:12 PM	#13
MonsterJ I have motopsychosis Joined: Sep 2008 Location: Bay Area, CA Oddometer: 259	I wish I could vote twice but it won't let me. I've got 2 '09 F800GS and both stators have failed. One at 25K and the other bike's failed at 50K. __________________ -Nooner Temple, TX -> Cape May, NJ -> Mobile, AL -> ECity, NC -> Kodiak, AK -> Mobile, AL -> Sacto, CA -> Cape Cod, MA -> New London, CT -> San Francisco, CA -> Juneau, AK (summer of '13) -> where to next?

05-06-2012, 03:42 PM	#2
dmasliah Adventurer Joined: Mar 2009 Location: Middleton, Wi. Oddometer: 40	2009 f800gs, No stator failure yet. I only have 8000 miles on the bike.

05-07-2012, 08:40 AM	#3
rockinrog Beastly Adventurer Joined: Mar 2008 Location: Central PA Oddometer: 2,500	I really hated to vote in fear that I may jinx myself __________________ BRP 2010 and 2012 PA to Montana Rural Ramblings

05-07-2012, 10:52 AM	#4
JRWooden ^OP Beastly Adventurer Joined: Jul 2008 Location: The great state of confusion Oddometer: 3,482	yeah... maybe ... I'd like to see lots more votes, but at this point ~20% of the bike over 20K miles have experienced a failure.....

05-07-2012, 08:29 PM	#9
vtbob wanderer Joined: Jun 2009 Location: Western Vermont Oddometer: 423	Like that has been said, the numbers of those with out failures will be light. This group is a bit self selecting,,,focusing on this problem. Still the number of failures are significant. And with this admittedly small sample, time correlated to usage. A speculative conclusion 1 in 3 bikes will have this failure in the 20=40k mile bracket 1 in 5 bikes will have this failure in the 40-60k mile bracket good work!

05-09-2012, 04:34 AM	#15
JRWooden ^OP Beastly Adventurer Joined: Jul 2008 Location: The great state of confusion Oddometer: 3,482	IIRC, it was Joel's opinion that stator failures would not happen until ~40K miles ... It takes many miles of cooking to git 'r done ... Happy riders are of course less likely to vote. We do have a pretty "young" population of bikes here.... So yeah... I don't think its "fair" to count the < 20K mile user base.... I'm going to open a separate poll for the F800S / ST users when I get time.... The fiche says they have the same generator set and they should have more miles on the bikes.... As I mentioned in the stator thread, I am optimistic that ElectroSport may come to the rescue of those of us out of warranty. JRWooden screwed with this post 05-09-2012 at 05:07 AM

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