I have a 2004 FLHRI Road King. I was wondering if the turnbuckles on the motor mounts need to be tweeked ever. Once they are installed at the factory do you ever have to adjust them in the future?

 

Check the HD Service Manual for your bike and it will describe the procedures for checking alignment. Guys that I know who have done it have always found their bikes were out of alignment. Mine, thankfully, wasn't.