Hi all,

i'm thinking failed compensator,my 07 was doing this...terrible noise,but usually did it hot,cold start was fine.

Agree with Bruce, that banging does sound like compensator unloading, what year is it? She struggles a bit on compression stroke.

With you Hilly with the comp ....about to be on my third comp. Last one would slip under heavy acceleration as well as the clunking noise from the primary area. Didn't sound exactly like this one in the vid .

I agree with the rest of the guy's, my 07 Dyna sounded similar to that, changed the compensator to SE type, noise goneski. 

My 2007 Street Bob did something like that for years... worse when hot. Eventually changed the starter motor.