Description & Size Guide
Power ReedLaboratory flow analysis proves Boyesen® dual-stage reeds out-perform standard reeds They permit greater flow velocity over the entire range of operating pressures Increased performance from start-up to top acceleration Husqvarna WR 250 1989 Yamaha IT 250 1977 Yamaha IT 250 1983-1985 Yamaha IT 250 1978 Yamaha IT 250 1979 Yamaha IT 250 1980 Yamaha IT 250 1981-1982 Yamaha IT 250 1983 Yamaha IT 250 1983-1984 Yamaha IT 250 1984 Yamaha IT 250 1984 Yamaha IT 250 1981 Yamaha IT 400 1979 Yamaha IT 425 1980 Yamaha IT 465 1981-1982 Yamaha IT 490 1983-1984 Yamaha IT 490 1982-1983 Yamaha IT 490 1984 Yamaha YZ 250 1978 Yamaha YZ 250 1979 Yamaha YZ 250 1980 Yamaha YZ 250 1981 Yamaha YZ 250 1982 Yamaha YZ 250 1989 Yamaha YZ 250 1989 Yamaha YZ 250 WR 1989 Yamaha YZ 400 1979 Yamaha YZ 465 1980 Yamaha YZ 465 1981 Yamaha YZ 490 1983 Yamaha YZ 490 1982
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