1968 Yamaha TD1-C November 8, 2006
There was no doubt that Yamaha got a few things wrong with its first production racers, the TD1-A and TD-1B. The ‘B’ went some way towards correcting these, with a larger 25mm crankshaft and a porous chrome plating applied to the cylinder bores to retain oil and increase engine life. With changes to port timing, the engine now revved to 10,000 and gave better all-round performance, but there were still reliability problems. Engine mounts cracked, the clutch was still a very fragile affair and the chrome cylinder lining would flake off, …
Antique Motorcycles October 18, 2006
Some photos of old bikes 
Wonderful show
