Installing The Valves - Yamaha YJ125S Service Manual

4
5 3
2
6
M
2
1
VALVES AND VALVE SPRINGS
1
M
b a
3
5-26
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
8valve stem seal
(with the recommended lubricant)
Recommended lubricant
Molybdenum disulfide oil
3. Install:
8 valve 1
8valve spring seat 2
8valve stem seal 3
8valve spring 4
8valve spring retainer 5
8 valve cotter 6
(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 2 and
the valve spring compressor attachment 3.
ENG
New