 From 1969, 181 series EMUs, also used on "Asama" services were introduced on "Soyokaze" services.When first introduced, "Soyokaze" services featured reserved accommodation only, but from 15 November 1982, non-reserved cars were also included.From the start of the revised timetable on 14 March 1985, 9-car 489 series EMUs were introduced on "Soyokaze" services.