Yamaha YZF-R7 Owner's Service Manual page 163

VALVES AND VALVE SPRINGS
4. Install:
5. To secure the valve cotters 1 onto the
6. Lubricate:
7. Install:
4 - 31
• valve cotters 1
NOTE:
Install the valve cotters by compressing
the valve spring with the valve spring
compressor 2 and attachment 3.
Valve spring compressor
90890-04019
Attachment
(for the intake valve spring)
9080-04114
(for the exhaust valve spring)
90890-04108
valve stem, lightly tap the valve tip with
a soft-face hammer.
CAUTION:
ACHTUNG:
Hitting the valve tip with excessive
force could damage the valve.
• valve pad
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
• valve pad
• valve lifter
NOTE:
• The valve lifter must move smoothly
when rotated with a finger.
• Each valve lifter and valve pad must be
reinstalled in its original position.
ENG