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Fatboy wont start

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Old Apr 3, 2017 | 08:20 AM
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Default Fatboy wont start

Please someone help me

last weekend i went to start my bike .. battery was dead ( no big issue ) but was wanting to ride so i tried to jump it .. ( battery was way too dead ).. oh well

Charged my battery and put in today .. turn to ignition.... lights come on turn signals work .. hit the run button .. wait for the fuel pump to finish .. ok ..... hit the start button and hear the fuel pump running again .. no crank no nothing .. can anyone help me ?
 

Last edited by jasonleahey; Apr 3, 2017 at 10:22 AM.
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Old Apr 3, 2017 | 10:05 AM
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am getting code B2121....
 
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Old Apr 3, 2017 | 10:54 AM
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B2121 is "starter circuit open/BCM stater circuit open".

Start by checking out battery voltage, power to starter, etc
 
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Old Apr 3, 2017 | 11:26 AM
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I'm sorry to say, but the first thing that comes to mind is that you will need a new battery.
 
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Old Apr 3, 2017 | 12:00 PM
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blow a fuse?
 
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Old Apr 5, 2017 | 07:27 PM
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not my video but my bike does the same .. there was no answer on the owners video to say what happened



https://www.youtube.com/watch?v=1dfn...ature=youtu.be
 
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Old Apr 5, 2017 | 09:03 PM
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unhook your battery, then hook it back up and wait 45 minutes for the alarm to reset, then try to start the bike...i never use the on off kill switch. also you may need a new battery in your key fob. mine would sometimes start and sometimes not, the key fob battery way dying
 
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Old Apr 5, 2017 | 11:27 PM
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put a new battery in the Fob and had the battery off all day yesterday ...no dice
 
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Old Apr 5, 2017 | 11:58 PM
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I would get a volt meter or multi-meter and check battery voltage looking for around 14V. Try starting - does the voltage drop under load? How much? If it drops below 10V you probably need a new battery, have Autozone or (?) load test it. If it doesn't drop it isn't seeing a load from the starter. At this point a wiring diagram would be helpful...in general terms when you push the starter button the starter relay should close and send voltage to the starter/solenoid. You need to confirm that you have full battery voltage to the relay and starter/solenoid when the starter button is pushed. Find which component is not receiving battery voltage when attempting to start and determine why.
 
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Old Apr 9, 2017 | 06:16 PM
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took it to the dealer and sent me a picture of crushed wires causing a short .....bad thing is their booked up for over a month

I get my bike back today as their a small shop and cant store it ... they say this may be the issue or the BCM as i tried to jump start it









 

Last edited by jasonleahey; Apr 9, 2017 at 06:18 PM.
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