Yamaha T135SE Service Manual page 145

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Yamaha T135 Service Manual
VALVES AND VALVE SPRINGS
M
4-29
EAS00245
INSTALLING THE VALVES
The following procedure applies to all of the
valves and related components.
1. Deburr:
9valve stem end
(with an oil stone)
2. Lubricate:
9valve stem 1
9valve stem seal 2
(with the recommended lubricant)
Recommended lubricant
Molybudemium oil
3. Install:
9valve 1
9lower spring seat 2
9valve stem seal 3
9valve spring 4
9upper spring seat 5
(into the cylinder head)
NOTE:
Install the valve spring with the larger pitch a
facing up.
b Smaller pitch
ENG