Boyesen 640 Power Reed, Black
Boyesen Power Reeds use a patented dual-stage fiberglass design for more airflow, more air velocity and more overall power. This item fits the following applications: 1978-1989 Yamaha YZ250, 1983-1984 Yamaha IT490, 1982-1983 Yamaha YZ490, 1977-1983 Yamaha IT250, 1981-1982 Yamaha IT465, 1980-1981 Yamaha YZ465, 1980 Yamaha IT425, 1979 Yamaha YZ400, 1979 Yamaha IT400.
