Hello and good day together, I have fulfilled a long-awaited wish and bought a 1200 Harley Sportster XL Bj 03.2012 with 17,000 km. I noticed nothing unusual during the short test ride. Only now after longer rides, has a constant jerking in the lower speed ranges adjusted (times more times less ) There are different solution instructions given and I become more and more confused what is the right thing for another procedure. erter HD screwdriver my problem and could help me. Thank you in advance! Bernhard Ns: Yes, my mistake, I should have better informed myself before buying what the stacks are at the machine 🙂