Seat Hinge Pin - Set of 2 - Replaces Yamaha OEM 91501-05055/91701-05055. This Seat Hinge Pin - Set of 2 restores the seat hinge pivot so the seat opens, closes, and aligns correctly.Choose this seat hinge pin set when hinge parts are bent, seized, missing, rusty, or loose at the seat pan.Fitment / CompatibilityFits Yamaha: Yamaha RD250 (1973-75) Yamaha R5 1970 Yamaha R5C 1972 Yamaha RD350 (1973, 1975) Yamaha RD350A 1974 Yamaha RD400 (1976-79) Yamaha SR500 (1978-81) Yamaha TX500 (1973-74) Yamaha XS500 (1975-78) Yamaha TX650 1974 Yamaha TX750 (1973-74) Yamaha XS650 (1975-79) Yamaha XS650S (1978-79) Yamaha XJ650 1982 Yamaha XS750 (1978-79) Product Details Seat hinge part Replaces Yamaha OEM 91501-05055/91701-05055 Set of 2 XS650Direct part number: 68-6806 Before Ordering Confirm hinge side, pin diameter, bracket shape, and mounting hardware. Lubricate the hinge and verify seat alignment.