Hey Folks; 1st Postgres. I recently bought a used 2014 1000 with 6000 miles. It was approaching 7500 miles, so I thought I would change the oil and filter. I used a reputable filter and 5w-40 synthetic oil that I have used in many other bikes. Lo and behold the dreaded idle hammer started. I fretted, read all the threads, and decided it was something I did with the oil change. I noticed that it was not a consistent frequency, and the noise would miss a beat every now and then. It had to be the oil, filter, or level. I rode it home from work, shut it off, leveled the bike, and noted the oil was above the “full” mark. I sucked 350cc out with my sons old feeding tube syringe and hose. (He watched, and I am sure hoped he wasn’t having oil for dinner. He is deaf and Autistic). After starting it up, the loud hammer is gone. It does make a lot of noise for a modern engine, and the aluminum belly pan/guard resonates some of the noise. Try bringing your oil level to the middle of the sight glass, and see if it helps. I suspect the crankshaft or clutch basket was hitting the oil creating drag and windage.