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==Intro== | |||
The F4 Sidewinder used a 238cc engine which was similar to the motocross F21M. However, the F4 was also well equipped for trail riding which was a rapidly expanding market in America. Quick-Detachable lights and off-road trials were some of the highlights. The rotary valve engine produced 23 horsepower @ 7,500. | |||
==1969-1970 F4== | ==1969-1970 F4== | ||
[[Image:1969-kawasaki-f4.jpg|left|thumb|1969 Kawasaki F4]] | [[Image:1969-kawasaki-f4.jpg|left|thumb|1969 Kawasaki F4]] |