The 1973 Kawasaki Z-1 motorcycle was Kawasaki's answer to Honda's popular models of the late 1960s. It had a 903-cc double-overhead-cam inline four that became the benchmark other companies tried to beat. See pictures and learn about the Kawasaki Z-1.
The introduction of the 1986 Harley-Davidson XLH 1100 was big news for fans of the Harley Sportster. The 1986 models got their own version of the Evolution powerplant smoother and more reliable than the old design. Check out the Harley XLH 1100.