Yamaha YZF-R1P Service Manual page 267

VALVES AND VALVE SPRINGS
5. To secure the valve cotters onto the valve
stem, lightly tap the valve tip with a soft-face
hammer.
CAUTION:
_
Hitting the valve tip with excessive force
could damage the valve.
6. Install:
• valve pad 1
• valve lifter 2
NOTE:
_
• Lubricate the valve lifter and valve pad with
molybdenum disulfide oil.
• The valve lifter must move smoothly when
rotated with a finger.
• Each valve lifter and valve pad must be rein-
stalled in its original position.
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ENG