Yamaha YZF-R6T Supplementary Service Manual page 358

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VALVES AND VALVE SPRINGS
3. Measure:
S valve spring tilt a
Out of specification ! Replace the valve
spring.
EAS00242
CHECKING THE VALVE LIFTERS
The following procedure applies to all of the
valve lifters.
1. Check:
S valve lifter
Damage/scratches ! Replace the valve lift-
ers and cylinder head.
EAS00246
INSTALLING THE VALVES
The following procedure applies to all of the
valves and related components.
1. Deburr:
S valve stem end
(with an oil stone)
2. Lubricate:
S valve stem 1
S valve stem seal 2
(with the recommended lubricant)
3. Install:
S valve 1
S lower spring seat 2
S valve stem seal 3
S valve spring inner (intake only) 4
S valve spring outer 5
S upper spring seat 6
(into the cylinder head)
5-29
ENG
Spring tilt limit
Intake valve spring (inner)
2.5_/1.6 mm (0.06 in)
(outer)
2.5_/1.8 mm (0.07 in)
Exhaust valve spring
2.5_/1.8 mm (0.07 in)
Recommended lubricant
Molybdenum disulfide oil