I appreciate everyone who has waded in on my original post and all the helpful comments. To close the loop thus far, I reinstalled the stock engine bolts that were removed when I put my frame sliders on and torqued them properly. The test ride was about the same as before, but the vibes may have been slightly less than with the sliders in place. I reinstalled the sliders, and installed heavy bar end weights. The result was that the vibrations actually seemed worse at speed -- between 75 and 80 mph. My previous bike was a Suzuki GSX1250 FA, which was a little buzzy, but not nearly as bad as the FJR. The FJR is rock solid and pretty quiet from 60 - 70 mph, but at about 75 (around 4,000 - 4,200 rpm) to 80 it has really pronounced vibrations in the bars. I can also feel it in the seat a bit, too. Problem is that's the range where I do most my highway riding. I've ordered a set of Vibranator bar ends, which work a little different than regular weighted bar ends, and will try them but I'm not holding out much hope for a dramatic change. I'll ask the dealer to check the front tire balance at the 600 mile service which I will be doing soon, but if that doesn't help I may just have to live with the vibes. What a shame, as that would take a potentially great bike down to a merely good bike in my opinion. Too bad the buzziness is right in the middle of the common highway riding rev range. I've heard some people comment that HeliBars solves much of the vibration issue -- has anyone tried those and can you comment on the effect on the bar vibrations?
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