Installing The Valves - Yamaha XC50V Service Manual

2
1
1
a
b
1
VALVES AND VALVE SPRINGS
2
4
3
5
2
EAS00245

INSTALLING THE VALVES

The following procedure applies to all of the
valves and related components.
1. Deburr:
8valve stem end
(with an oil stone)
2. Lubricate:
8valve stem 1
8valve stem seal 2
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
3. Install:
8valve 1
8valve spring seat 2
8valve stem seal 3
8valve spring 4
8valve spring retainer 5
(into the cylinder head)
NOTE:
Install the valve spring with the larger pitch a
facing up.
b
Smaller pitch
4. Install:
8valve cotters 1
NOTE:
Install the valve cotters by compressing the
valve spring with the valve spring compressor
and the valve spring compressor attachment 2.
5-25
ENG
New