Bleeding Brakes on 2016 Street glide

Here is short video on how I bleed brakes at the shop. The bike is a 2016 Harley Davidson Street Glide. The process is the same for bleeding the front brakes and the hydraulic clutch.

The main thing to remember with this process is not to let the reservoir run dry while applying vacuum to the system. This way no air will be introduced into the system.

[jbucks]

What would cause the ABS to click/clunk after a fluid change? I changed fluids and afterward the ABS clicks when hard brake applied. I re-flushed a 2nd time and same thing. When I hit front and rear brake hard at approx. 10-15 mph ABS acts crazy. Never let the Master cylinder go empty and didn't think I introduced air any other way. Any ideas? 2014 SGS