[ironmark]

+1 ^^^

Did you check for DTC's??
Check the 02 sensors a steady dose or semi steady dose of fuel injector cleaner isn't a good idea because it will screw up the 02 sensor readings to the ECM and cause running issues.
Also a cracked fuel lines inside the fuel tank or a warp fuel filter housing will cause running issues that will make the bike pop.
These bikes have a history of the fuel filter housing warping and HD did a recall on the 08 models because of this problem but some of the newer bikes have had warped fuel filter housings.

 

[ironmark]

The 02 sensors may not show up on the dtc if they are coated with carbon or soot, you may want to pull them and clean them.
I don't use any additives in my fuel anymore because it messed up my 02 sensors. I run a T-Max tuner with closed loop 02 sensors which is needed for the auto tune and I used fuel injector cleaner once and it threw off the AFR readings to my ECM, I had to pull the sensors and clean them up for things to get back to normal.