| Yamaha YD Racer Catalina GP |
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Page 7 of 13
It was recently discovered that the YD racers also set the fastest lap time at Catalina, which was a tremendous achievement. The engine is very special inside with lightning holes drilled thru the clutch, square cut primary drive like a TD1. Careful matching and polishing of the ports.
Connecting rods are polished too! Crankshaft is two part and you can remove one half of the crank with engine still in frame. Carburettors are like TD1 but have a different casting and number. Float chambers are totally different from TD1 type. They look very similar to the RD56. Remember, it was the first appearance of a Japanese motorcycle in a race in the United States and the first time the American public ever saw or heard
of a Yamaha. The magazines of the time said the Yamaha was clearly the loudest machine in the 250 class!
PQ racer is what the "inside" people called the racer. It probably was known by that at the Factory but we are not sure about that! |
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| Last Updated ( Tuesday, 08 July 2008 ) |
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