Yamaha YZF-R1S Service Manual page 247

EAS00236
VALVES AND VALVE SPRINGS
Order
Removing the valves and valve
springs
Cylinder head
1 Intake valve lifter
2 Intake valve pad
3 Intake valve cotter
4 Intake valve upper spring seat
5 Intake valve spring
6 Intake valve oil seal
7 Intake valve lower spring seat
8 Intake valve
9 Intake valve guide
VALVES AND VALVE SPRINGS
Job/Part
5-25
Q'ty Remarks
Remove the parts in the order listed.
Refer to "CYLINDER HEAD".
12
12
24
12
12
12
12
12
12
ENG