Yamaha XV16AL Service Manual page 271

VALVES AND VALVE SPRINGS
2. Lubricate:
• valve stem 1
• oil seal 2
(with the recommended lubricant)
3. Install:
• lower spring seat 1
• oil seal 2
• valve 3
• inner valve spring 4
• outer valve spring 5
• upper spring seat 6
(into the cylinder head)
NOTE:
Install the valve springs with the larger
pitch a facing up.
b Smaller pitch
4. Install:
• valve cotters
NOTE:
Install the valve cotters by compressing the
valve springs with the valve spring com-
pressor 1.
5. To secure the valve cotters onto the
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.
6. Install:
• cylinder head
Refer to "CYLINDER HEADS".
5 - 52
ENG
Recommended lubricant
Molybdenum disulfide oil
New
Valve spring compressor
YM-04019
5