According to a revision made effective on July 26, 1997, the Yawata Uji Route changed its name to the Yawata Okubo Route, after altering and shortening the route (without changing the route numbering) to operate between Keihan Yawata and Okubo Station (Kyoto Prefecture) for only 2.5 round-trips in a day during weekdays.
1997年7月26日改正で八幡宇治線は経路変更及び京阪八幡～大久保駅(京都府)に短縮の上八幡大久保線と改称し（系統番号は不変）、平日1日2.5往復のみの運行となる。