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