Yamaha Merken Yamaha Xt 600 Yamaha Xt 600 generaties Yamaha Xt 600 1984 Yamaha Xt 600 1985 Yamaha Xt 600 1986 Yamaha Xt 600 1987 Yamaha Xt 600 1988 Yamaha Xt 600 1989 Yamaha Xt 600 1990 Yamaha Xt 600 1993