Hi,
I have been having issues with battery drain on my 2016 iron 883. Battery voltage is great until I start the bike. Runs for a short while then batt light comes back on. Any help on what to do would be awesome

 

You need a voltmeter. With the engine running at a fast idle you should measure around 14.4volts across the battery. If not it might be the stator or regulator or their connections to the bike.

What you describe as the battery lamp I am guessing is the system error lamp. Check for DTC codes.

https://www.fuelmotousa.com/p-29661-...M%20XL%201200C

 

Hi, thanks for the info. I put the voltmeter on and when at fast idle voltage drops to 11.5 😔
I am not great mechanically but I checked the connection on the reg and they looked ok. Is there a sure fire way to determine without spending a fortune.
thank you

 

Hi, thanks for the info. I put the voltmeter on and when at fast idle voltage drops to 11.5 😔
I am not great mechanically but I checked the connection on the reg and they looked ok. Is there a sure fire way to determine without spending a fortune.
thank you

 

Your initial check would suggest you have no output from the regulator.

I don't have the information but a search should find how you can test the stator and regulator.

Did you do the check for DTCs from the link I gave you?

 

In short, yes there is. I'm not sure when Sporties became Canbus (or if they are) but for pre-canbus bikes there is a Sticky in the Tech Electrical section, which takes you through the testing process, to identify the source.

 

2014 for CAN bus.

 

Thanks Andy.

 

Hi. I got a code of P0562 Battery/ECM Voltage Low from the link provided.

 

Direct on plug 47 using ohm meter the stator should not be open circuit but don't what it will be. Measure on plug 47 with ac voltage meter and engine running you should see a voltage. Not sure what it will be but might be 25 VAC to 50VAC.

Some guys over here have had the cable from the stator to the regulator get cut where it is too tight to the crankcase. You might want to look for evidence of that.

If good then check output from regulator. Should be 14.4 volts direct on 77A. Might be higher with the regulator not connected. If good then a wire is broken to the battery.