They are all inside the Honda Collection Hall located next the the Twin Rings Motegi motosport complex (aka Motegi). Honda owns the track and has their museum there.

I have been there at least three times, and toured the museum twice. I have a whole BUNCH of pics that my friends and I took while we were there.
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Paul Herr
'88 FZR4/GSXR/YZF Frankenbike
MY BIKE PICS