2009 Buell 1125R electrical system problems
32 owner complaints filed with NHTSA name the electrical system on the 2009 Buell 1125R — 82% of all complaints for this model year.
What owners report
“Riding my 2009 buell 1125r, the oem stator overheated and fried 1 leg of the 3 leg stator. I had the harley davidson recall done on the bike and this made it worse, when going under 5k rpms the bike would overheat; which eventually led to the stator frying. This caused the regulator to be fried as…”
filed Mar 30, 2015
“Voltage light came on with check engine light. Engine died. This is the third time the stator has went out. One time the voltage regulator went out. Harley refused to fix it under warranty. I have 2 of these motorcycles & both have the same problems. *tr”
filed Apr 6, 2014
“Stator failed in traffic on the highway, had to push bike across a lane of traffic on hwy 95 florida.”
filed Oct 25, 2015
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
SERVICE BULLETIN M1684: MARKET SPECIFIC BATTERY INTRODUCTION. PURPOSE: Initial Release. This bulletin informs dealers of the availability of new batteries for new Original Equipment (OE) vehicle production and in the…
M1684 · Service Bulletin/Repair Instructions · issued Aug 16, 2025Buell motorcycles: certain motorcycles-1125r and 1125cr 2009-10 and 2008 1125r have been refitted with a 2009 or 2010 engine. On these models the stator may operate at temperatures that exceed the manufacturer's…
SB-B-099 · Service Bulletin/Repair Instructions · issued Jan 25, 2010
Other reported problem areas on the 2009 Buell 1125R
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.