Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

2011 Fatboy Lo- won't start

Thread Tools
 
Search this Thread
 
Old Jul 14, 2015 | 10:02 AM
  #1  
harleyL7's Avatar
harleyL7
Thread Starter
|
Intermediate
Joined: Dec 2014
Posts: 30
Likes: 0
From: North Carolina
Default 2011 Fatboy Lo- won't start

I rode it to work this morning and tried starting it up to go home and I hit the run switch and that worked fine. Then tried starting it and all I get is a click..

I'm about to drive my car to it and try to pull some codes off of it and then bring the battery back to my room and put it on the tender.

Anyone have any suggestions? I searched and read some other posts about the same problem and thats what has dictated my current approach.

Thanks,
Harley
 
Reply
Old Jul 14, 2015 | 10:23 AM
  #2  
TN Back Roads's Avatar
TN Back Roads
Advanced
Joined: May 2010
Posts: 59
Likes: 0
From: Pleasant View, TN
Default

Sounds like a weak battery, or loose battery cable. Good luck
 
Reply
Old Jul 14, 2015 | 10:49 AM
  #3  
harleyL7's Avatar
harleyL7
Thread Starter
|
Intermediate
Joined: Dec 2014
Posts: 30
Likes: 0
From: North Carolina
Default



The battery is on a tender right now.
 
Reply
Old Jul 14, 2015 | 11:51 AM
  #4  
1004ron's Avatar
1004ron
Road Warrior
Joined: Jun 2013
Posts: 1,781
Likes: 50
From: Louisville, KY
Default

DTC B2124 will set if the starter solenoid circuit draws more than 12 Amps
I'd give it a try with a fresh charged battery, and if it starts be ready to measure the charging voltage, if it's > 13.6 volts the charging circuit should be good and must be some parasitic load that drained it.

That code suggests an over current issue, .... not sure how it determines that, ... could be looking at the voltage drop from the time you hit the start switch.


Could be the battery is not discharged, and the cause is a poor connection.
 
Reply
Old Jul 14, 2015 | 12:27 PM
  #5  
Kojax's Avatar
Kojax
Grand HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: May 2009
Posts: 4,677
Likes: 141
From: haverhill mass
Cool

you need a new battery
 
Reply
Old Jul 14, 2015 | 12:33 PM
  #6  
harleyL7's Avatar
harleyL7
Thread Starter
|
Intermediate
Joined: Dec 2014
Posts: 30
Likes: 0
From: North Carolina
Default

Is there a specific aftermarket battery anyone suggest or should I stick with an OEM one from the dealer?
 
Reply
Old Jul 14, 2015 | 01:28 PM
  #7  
1004ron's Avatar
1004ron
Road Warrior
Joined: Jun 2013
Posts: 1,781
Likes: 50
From: Louisville, KY
Default

Originally Posted by harleyL7
Is there a specific aftermarket battery anyone suggest or should I stick with an OEM one from the dealer?
Do a forum search, and it should reveal a few options, but the Big Crank from http://www.batterymart.com/c-big-cra...1JvBoCrK3w_wcB is a popular choice.

Made by the same factory as HD batts.

I would not go buying a new battery before doing some diagnostics.
 
Reply
Old Jul 14, 2015 | 04:45 PM
  #8  
harleyL7's Avatar
harleyL7
Thread Starter
|
Intermediate
Joined: Dec 2014
Posts: 30
Likes: 0
From: North Carolina
Default

Originally Posted by 1004ron
Do a forum search, and it should reveal a few options, but the Big Crank from http://www.batterymart.com/c-big-cra...1JvBoCrK3w_wcB is a popular choice.

Made by the same factory as HD batts.

I would not go buying a new battery before doing some diagnostics.
What diagnostics would you suggest?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Jul 14, 2015 | 06:25 PM
  #9  
Kojax's Avatar
Kojax
Grand HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: May 2009
Posts: 4,677
Likes: 141
From: haverhill mass
Smile

i just put a new harley battery in my 2010 fatboy lo fires up nice now
 
Reply
Old Jul 14, 2015 | 06:27 PM
  #10  
Kojax's Avatar
Kojax
Grand HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: May 2009
Posts: 4,677
Likes: 141
From: haverhill mass
Default

my brother has a 2010 dyna wideglide funny he just put a new harley battery almost the same time i did
 
Reply



All times are GMT -5. The time now is 03:37 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE