Project Description


Kawasaki S3 400 1975

Absolutely superb example of Kawasaki’s outrageous S3 two stroke triple! Lots of paperwork detailing all the work that has resulted in this stunning purple head turner of a bike! NOS exhausts amongst many other parts!

Kawasaki emphatically established its enduring reputation for building high performance motorcycles with a succession of exciting two-stroke triples, the first of which – the 500cc Mach III – appeared in 1968. In 1971 the original was joined by three more triples, the 750cc H2, 250cc S1 and 350cc S2. The latter two machines were virtually identical, the S2 differing from its smaller sibling only in its larger bore and carburettors, and shorter wheelbase. Over-boring a 250 has always been the best way to make a quick 350, and the S2 did not disappoint with its 115mph top speed and 13.9-second standing quarter-mile. Equally importantly, the handling was much improved over the original Mach III’s. Built for three years only, the S2 was superseded by the 400cc S3, which arrived in 1973 boasting a longer wheelbase, disc front brake, rubber-mounted engine and, surprisingly, a few less horsepower than its 350cc predecessor. Although slightly down on performance, the S3 could nudge 110mph and race through the quarter-mile in a little over 14 seconds, figures that put it at the head of its class. Outrageous and uncompromising in their day, these characterful Kawasaki triples have become highly collectible in recent years.

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