Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > BMW Tech

BMW Tech BMW Tech Forum - For Questions specific and of interest to BMW riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

7 Litre Camel Tank Lets You Explore More, Click to Find out More!

LinkBack Thread Tools Display Modes
Old 25 Jan 2014
Registered Users
HUBB regular
Join Date: May 2012
Posts: 46
F650 GS Stator

I have a 2010 F650 GS...40,000kms. No problem with the stator yet but I have heard many 650's have this problem around 50,000kms.
I am in Argentina now and thinking of changing it before it goes. No fun if your bike breaks in some remote place.
BMW only sells the complete generator...but I believe one can buy just the stator.
If so any recommendations on where and what type to get in Canada or the US.
Reply With Quote
Old 26 Jan 2014
Registered Users
HUBB regular
Join Date: Feb 2009
Location: Washington DC
Posts: 53
Check with Rick's Motorsport Electrics: Aftermarket Motorsport Parts & Kits Superstore - Charging, Starting, Ignition

Wife and I were stuck with our F800GS and a burnt stator in Katy, TX, after riding 41k miles around the world and with 1k to go (little over 50k on the odometer). The closest bike shop didn't have the OEM part in stock. Called around to other shops in Houston area. No luck. Asked about motor shops that may be able to rewind. "Not in the Houston area." Only option to get us back on the road immediately was to strap a $1k Honda generator to the top case and run wires to the battery terminals. We decided have to have a stator shipped.

Wife found Rick's online. Cheaper than OEM and shop knew the name so we overnighted the part and it was installed next day. Got us home and has continued working without issue. Have maybe 4k miles on it now.
Reply With Quote
Old 28 Jan 2014
Contributing Member
HUBB regular
Join Date: Mar 2013
Posts: 33
Stator issues seem to be a common occurrence in many bikes not just the BMW. I've been reading many posts ( not on this site ) about using series voltage regulators instead of the shunt type. I won't go into explaining the difference, as you can find that out, but it is safe to say that the series units are much easier on the stators as they just allow the current to flow that the system is calling for instead of the shunt type that shorts the excess to ground which generates heat in the stators. Most if not all our bikes are equipped with the shunt type.

From what I've read if you're stator system is a 3 phase ( like Harley, Suzuki DL650 or many other bikes ) and the total stator output is less than 35 amp something like a Polaris Regulator Part # 4012941 might work for you. Also Compufire # 55401 has been used with success.

Just another option and might be worth checking out. The above are not a plug and play as you likely will have to change the connector plugs or use new ones.
1971 BMW R75 project,
2013 Suzuki DL650A
Reply With Quote
Old 28 Jan 2014
Registered Users
New on the HUBB
Join Date: Feb 2010
Location: Landsberg
Posts: 14

I changed (only) the stator on my F800GS at approximately 60000 kms. It was not defective, but the voltages on the 3 phases were not equal. Due to a longer journey I decided to change it before it might fail. I bought this one Buy New Stator BMW F800 (07-12) F800GS (09-12) from a german ebay shop. Testing it about 8000kms, it worked well like an OEM part. Additionally I changed the regulator from the original shunt to a series type: Roadstercycle CE605SB series regulator/rectifiers for Sport bikes
It fits at the same place like the OEM regulator. Connecting is no problem, if you can handle a soldering iron. First testing and measurements on the first 1000 kms are looking very well. The next 7000kms I will test the stator and its regulator on the gravel roads in South America...

Reply With Quote
Old 16 Feb 2014
Registered Users
HUBB regular
Join Date: May 2012
Posts: 46
Thanks you!

Thank you for the replies!
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
2004 F650 GS Clutch Lever luckyluke84 BMW Tech 0 29 Sep 2013 11:26
F650 GS '02 12k ONLY, factory lowered, ALU boxes, BMW tankbag, recent service! UK zorbazorbinski TRAVEL Bikes for Sale / Wanted 0 19 Jul 2013 15:34
BMW f650 GS Dakar 2006, Beds. UK Desert Ways TRAVEL Bikes for Sale / Wanted 1 15 May 2012 20:45
In a rush: Suzuki V-Strom 650 vs. BMW F650 GS TWIN estebangc Which Bike? 4 12 Apr 2012 18:02
Wanted F650 GS in the UK Gary117 TRAVEL Bikes for Sale / Wanted 8 14 Jan 2012 17:34


NEW! HU 2015 Motorcycle Adventure Travel Calendar is now available! Get your copy now for some terrific travel inspiration!

HUGE, 11.5 x 16.5 inches, beautifully printed in Germany on top quality stock! Photos are the winning images from over 600 entries in the 9th Annual HU Photo Contest!

Horizons Unlimited 2015 Motorcycle Adventure Travel Calendar.

"The calendar is magnificent!"

"I just wanted to say how much I'm loving the new, larger calendar!"

We share the profit with the winning photographers. YOU could be in the HU Calendar too - enter here!

HU DVD Autumn Special!

Take 40% off Road Heroes Part 1 until October 31 only!

Road Heroes features tales of adventure, joy and sheer terror by veteran travellers Peter and Kay Forwood (193 countries two-up on a Harley); Dr. Greg Frazier (5 times RTW); Tiffany Coates (RTW solo female); and Rene Cormier (University of Gravel Roads).

The first in an exciting new series, Road Heroes features tales of adventure, joy and sheer terror by veteran travellers."Inspiring and hilarious!"

"I loved watching this DVD!"

"Lots of amazing stories and even more amazing photographs, it's great fun and very inspirational."

"Wonderful entertainment!"

Check it out at the HU Store! Remember to use Coupon Code 'HEROES' on your order when you checkout.

Scottoiler automatic chain oilers. The most important accessory for your next motorcycle adventure!

Renedian Adventures

Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!

What turns you on to motorcycle travel?

Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.

Books & DVDs


All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.

Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!

All times are GMT +1. The time now is 14:57.