Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The YZR500 was the Yamaha Motor Corporation's entry for 500cc Grand Prix motorcycle racing between the years of 1973 and 2002. Riders who rode it to world championships are Giacomo Agostini (1975), Kenny Roberts (1978, 1979, 1980), Eddie Lawson (1984, 1986, 1988) and Wayne Rainey (1990, 1991, 1992). Yamaha Motor Company Limited is a Japanese motorized vehicle-producing company. Yamaha Motor is part of Yamaha Corporation and its headquarter is located in Iwata, Shizuoka.