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Thread: Stators

  1. #16
    Riding for the SON
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    Quote Originally Posted by Downs View Post
    I believe one solution that was being touted was reducing the output to reduce heat but I don't know if anyone went with that idea. IIRC as stated above Electrosport is trying to compensate for the heat by using better wire/insulation and they say it should be good for higher temps than the stocker would get.

    Roy are you saying they charged you 1200 dollars just for a stator ?!?!
    No the total bill was $12xx. $200 to remove from doner Bike and $200 labor to install. The parts were $845.

  2. #17
    jeepinbanditrider
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    You said you didn't get the upgraded rotor though. Sounded like they just swapped the stator from the "donor" bike over to your bike and left the rotor in place.

  3. #18
    Riding for the SON
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    Quote Originally Posted by Downs View Post
    You said you didn't get the upgraded rotor though. Sounded like they just swapped the stator from the "donor" bike over to your bike and left the rotor in place.
    That is correct.

  4. #19
    jeepinbanditrider
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    Ouch :/

  5. #20
    Back in the Saddle mcmxcivrs's Avatar
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    I'd like to see the revised rotor with the holes to determine if one could simply modify the old style one in the same manner. Obviously balance would be important, but with the aftermarket stator it should still be way less than the BMW kit. A competent machinist could accutately drill the rotor as long as there were no other design changes to allow for the cooling holes.
    Ed Miller, Calgary, AB
    2008 K1200GT, 2009 F800GS
    I can't wait to retire and have a fixed income. The one I have now is always broke.

  6. #21
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    Old vs new rotor


  7. #22
    Back in the Saddle mcmxcivrs's Avatar
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    Looks like more than just some holes. It appears to be largely redesigned to accomodate the openings. Oh well, wishful thinking.
    Ed Miller, Calgary, AB
    2008 K1200GT, 2009 F800GS
    I can't wait to retire and have a fixed income. The one I have now is always broke.

  8. #23
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    Quote Originally Posted by Downs View Post
    I believe one solution that was being touted was reducing the output to reduce heat but I don't know if anyone went with that idea. IIRC as stated above Electrosport is trying to compensate for the heat by using better wire/insulation and they say it should be good for higher temps than the stocker would get.

    Roy are you saying they charged you 1200 dollars just for a stator ?!?!
    Yes... I fed ElectroSport the details of our "issue" and they assert they have modified the design with different winding pattern and better (lower resistance) wire and maybe a few other trickes ... done with intent to reduce internal heat generation.

    $1200 would not surprise me as the stator "kit" BMW sells for the twins is ~$900 you get the stator and flywheel together....

  9. #24
    jeepinbanditrider
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    But they only gave him the stator out of the unit so he essentially paid them to upgrade one of their units :/ I understand they have to buy the whole "assy" but the least they could have done is sent him the upgraded rotor when it came in. Unless this was prior to the 09 "upgrade".

  10. #25
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    Sorry, I missed that part ....

    For the dealership to get a replacement stator will cost them ~$900 but ...

    If I had a "solid" rotor and paid $1200 (recently - after new design was available),
    I'd sure as heck make sure I got a vented rotor installed at some point ... hopefully at no charge... or modest cost...

    PS: if there ends up being a "spare" ventalated flywheel laying around I'd pay $100 for it without thinking about it...
    I'd probably pay more ... but would have to think about how much more ....

  11. #26
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    Quote Originally Posted by fishbmw View Post
    I have been hearing rumbles about the F-series stators going out around 20,000-30,000 miles. I just picked up a 650 this summer and plan on putting a lot of miles on, and don't want to have to worry about this on a trip. Anyone else hearing about this?
    My 09 F650GS stator was failing a month a way from BMW's warranty lapsing. If it was not for Clearwater Lights' CVS, I would have been looking at $700-800 out of pocket. Best $60 I've ever spent.

    http://clearwaterlights.com/infopg_cvs.html

  12. #27
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    Rick:

    Yeah... with all the trouble these bikes seem to have with stators, I think a monitor is cheap insurance. Here's what I did: http://f800riders.org/forum/showthre...mp-GPS-adapter

  13. #28
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    Electrosport Industries Stator ESG070 for BMW F800ST 2007-2011

    Quote Originally Posted by Ridealot View Post
    My F650GS twin stator went out at 39K miles. BMW won't sell just a stator it comes as a kit with a stator and flywheel for the ridiculous price of $900. This kit now comes with an updated flywheel that has holes in it thats supposed to help keep the stator cool. Who knows if it works.

    I wasn't interested in dropping nearly a grand for a simple stator so I bought an aftermarket one from Ricks for $165. You pull the sidecover off and the stator is bolted to the inside of the sidecover. I had to cut off the plug on the end of the stock stator and solder it onto the new stator. Then bolt the stator back onto the sidecover, install the sidecover and I was good to go. Why the kit doesn't just come with a new plug I don't know. Since I bought mine there is another company making stators for the 800's now so maybe its a direct replacement without having to solder anything.

    For the price of the Ricks I can replace the stator 5 times with change left over compared to the price of the BMW one.

    The F800 Riders Forum has a thread that will tell you more than you want to know about the stators on these bikes.
    I found this one on ebay:
    Electrosport Industries Stator ESG070 for BMW F800ST 2007-2011
    http://www.ebay.com/itm/271058018551...84.m1423.l2649

  14. #29
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    Quote Originally Posted by jcarpino View Post
    I found this one on ebay:
    Electrosport Industries Stator ESG070 for BMW F800ST 2007-2011
    http://www.ebay.com/itm/271058018551...84.m1423.l2649
    I'm 100% sure, but I don't think that is the "new and improved" (reduced heat) design for the GS-twins....

    If you need a stator you might want to call ElectroSport to be sure ...

    I think the new design is P/N: ESG831 shown here:
    http://www.electrosport.com/street-b...tml?pt=stators

  15. #30
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    Mine just died at ~30,200 miles. Dealer has bike. He mentioned the unit from Rick's as an option (I asked about aftermarket) but expressed concerns that the magnets might no longer be good in my bike, and there would be no way to diagnose until after installation on the bike.
    Is that accurate that the magnets can not be field tested? (I know so little about electrics, I don't even know where/which magnets he's talking about- in the rotor?) Is a magnet failure a likely associated problem, or is that something I don't need to worry about? Right now, looking at about $1100 to replace with new unit, or maybe $450 to replace with Rick's kit.
    thoughts/recommendations?
    I will be calling BMW Service later this morning; hopefully they will give me some coverage on my out-of-warranty bike, for this too common problem.
    Ride Safe, Ride Lots

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