Been replacing every rubber piece on my bike due to age. Most of the rubber parts are very hard and cracked. Some were still OK but I replaced them anyway. There are 2 rubber blocks that are located at the rear muffler mounting brackets. They were very hard. I replaced them and I cant believe how much smoother my bike idles. Sometimes, its the smallest, cheapest parts that make the biggest differences!

 

I need to do the same. Thanks for the reminder.haha

 

Have to agree.. Lots of bang for the buck.

 

Interesting. I guess this won't hurt to give it a try.
Have you replaced the bushings in the handlebar mounts yet? That made a difference as well.

 

Yes, I replaced the riser bushings with poly. They made a tremendous difference.