Below: scans off original sales brochures from YAMAHA Corp. and articles from various Motorcycle Magazines.

YZ Mods

1982-1983 Tuning manual YZ/IT

YZ 1981 Lineup (excuse my french :)

YZ 1982 Lineup

YZ 1983 Lineup

YZ 1987 Lineup

1983 BigBore shootout article

KX500 versus YZ490 1986

1989 YZ Test - YZ490

1988 YZ Test - YZ490

1987 Big Bore shootout DB