54k miles, performing the 6k maintenance today (happy birthday America!), all other maint is up to date. Bike is used regularly, not sitting idle for long periods of time.
I noticed that the idle is choppy (best word I can think of to describe it) as it has been for some time, but it is smooth throughout the range above idle. It has even died on occasion when going to idle after getting off of the interstate, but normally isn't rough enough to die, just not smooth.
Used the Harmonizer to synch the TBs today and set the idle at 1150 rpm, equal vacuum, but the idle is still not as smooth as it should be.
Both cables have about 1mm play, brass screws started at 1.5 turns out, then equalized. The screws were removed and cleaned last time, didn't remove them this time.
Any ideas what could cause this?
Thanks for helping me achieve idle sanity.