i had a 1971 kawasaki 90 bushmaster as my first motorcycle, the first thing i did was put a 100cc cylinder on it, oh yeah back in my youth we were limited to 5bhp on a restricted license, we did not have to suffer the embarrassment of riding nerdy scooters, my bushmaster had a cool name but was definitely not made for the bush,,,maybe the urban bush??? so with my limited funds and hp restriction i acquired a 1970 Kawasaki 100cc trail boss w/ ten speed transmission-- 5 for dirt 5 street, i turned it into a custom ride w/ new paint job, down swept chamber, and a pair of z bars on a dog-bone riser,, how unique and obscure is that?????