Vibrations on highway that were apparently really bad on the Z650, is it the same on 2020 and 2021 models or better ?

It was quite an ordeal. First I had to machine off the flange on the throttle tube. Even before that I had to take apart the switch assy that the tube rides in. I have a lathe in my basement to turn the flange on. I made a special mandrel to slide the tube on to turn it down. Then I checked inside the throttle housing to see if I could drill a small hole about 1/8" to tap an appropriate sized sheet metal screw to serve as the anchor screw. Then I drilled an under 1/8" inch inch hole thru the throttle locks lower portion while having the throttle lock clamped down on the throttle tube. This gave the alignment I needed. Then I drilled the hole that I drilled into the lower portion of the throttle lock just slightly bigger than the diameter of the sheet metal screw that I chose to use as my anchor for the lower portion of the throttle lock. I think the hardest thing I had to do was to reassemble the switch housing assembly back together with the twist grip tube and the two cables and a couple of other things that I never saw before inside all at once. I was a machinist for 49 years so I think that helped me out. I imagine this whole thread doesn't make much sense to you. I'll try and take a close up picture of it on my bike if you want.

bbarnier