I had to replace all my exhaust and some of the intake shims and I also noticed improved performance, I don't think it was your imagination.two needed shims
second valve adjustment
bike has 44,000 miles
I have shims left over from last time
they were ordered thru Honda
bike seems more responsive at low rpm
may be just my imagination
used Freds video for support
wore shoes
used Freds video for support
wore shoes