Yamaha Vector RS90RX 2008 Supplementary Service Manual page 26

Clutch weight
Weight g (oz)
Parts no. without bush
and rivets
8BU-17605-20 45.41 (1.603)
8DJ-17605-00 37.77 (1.333)
8ES-17605-00 54.63 (1.928)
8FA-17605-10 63.81 (2.252)
8FP-17605-00 67.81 (2.392)
8FS-17605-00 65.52 (2.311)
8FN-17605-00 75.28 (2.655)
GEAR SELECTION
Shape & ID mark
21
INSP
ADJ
Standard
RS90RX/RS90GTX/
RS90GTAX/
RS90LTX/
RS90LTGTX