All of the Yamaha twin 2T displacement variants were such ground breakers for road rashing, er racing. I can remember the first TZ 250 that came into our area, I used to drop by the shop where their mechanic kept his, just to help him do maintenance on the buzz bomb. He did Daytona in the early 70s with it. The ones I remember best were the RD400 Daytonas, with DG aluminum, gold anodized heads, smooth bore Mikuni carbs, special reeds and reed blocks, and a set of the chromed DG expansion chambers and silencers. Thrown on a set of flat super bike bars, some decent rubber and have a blast with them.
Only thing I remember about CBX Hondas was a magazine test on a turboed version, the last picture was of the right side on the engine where the rod had swept through the entire case, after the piston detonated into aluminum shards.
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13