Motoyoshi was born in Yokohama on July 26, 1967. After graduating from Chuo University, he joined Japan Soccer League club Fujita Industries in 1990. He became a regular player as center back. In 1991, he moved to Mitsubishi Motors (later "Urawa Reds"). However his opportunity to play decreased in 1994 and he moved to Japan Football League club Otsuka Pharmaceutical in 1995. He moved to Tokyo Gas in 1997. Although the club was promoted to new league J2 League end of 1998 season, he retired end of 1998 season.