davk
Mine would do the exact same thing, its a 2007 softail deluxe. It turned out the battery to be the problem. The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since. Check your cranking amps voltage and then you’ll see clearly if it is in fact the battery that is the problem. This is the last thing I thought it would be myself as well, but then you are fuel injected now too correct? They need proper voltage to operate correct. Hope this helps.
Dav