Yamaha SR125 1997 Service Manual page 99

VALVES AND VALVE SPRINGS
2. Apply:
3. Install:
NOTE:
Install the valve spring with the larger pitch a
facing upwards.
b Smaller pitch
4. Install:
NOTE:
Install the valve cotters while compressing the
valve spring with a valve spring compressor and
attachment 2 .
5. Secure the valve cotters onto the valve stem
Do not hit so much as to damage the valve.
4-19
: Molybdenum disulfide oil
(onto the valve stem 3 and oil seal 2 )
Molybdenum disulfide oil
: Valve spring seat 1
: Valve stem seat 2
: Valve 3
(into the cylinder head)
: Valve spring 4
: Spring retainer 5
: Valve cotters 1
Valve spring compressor:
90890-01253
Valve spring compressor
attachment:
90890-04108
by tapping lightly with a piece of wood.
CAUTION:
ENG
New