09 Road King-150 miles on new bike. Occasionally at an idle in neutral I get an occasional whirring noise that sounds like it's coming from the primary. I think the noise starts when the idle heat management kicks in. Any ideas? Checked primary case oil and it is at the proper level. Any inner primary bearing problems or is that problem behind us?
It's your automatic primary chain adjuster. (2007-newer) Holds the primary chain tighter then an adjustable unit, hence the noise. Normal. Quiets up a little after about 500 miles.
Linear Mode
