Yamaha YZFR1W 2007 Service Manual page 229

Valve spring compressor
90890-04019
YM-04019
Valve spring compressor
attachment
90890-04108
Valve spring compressor
adapter 22 mm
YM-04108
5. To secure the valve cotters "1" onto the
valve stem, lightly tap the valve tip with a
soft-face hammer.
ECA13800
CAUTION:
Hitting the valve tip with excessive force
could damage the valve.
6. Lubricate:
• Valve pad "1"
• Valve lifter "2"
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
7. Install:
• Valve pad
• Valve lifter
VALVES AND VALVE SPRINGS
NOTE:
• 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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