Yamaha T135SE Service Manual page 146

VALVES AND VALVE SPRINGS
4. Install:
9 valve cotters 1
2
NOTE:
Install the valve cotters by compressing the
valve spring with the valve spring compressor
2
1
5. To secure the valve cotters onto the valve
stem, lightly tap the valve tip with a soft-
face hammer.
cC
Hitting the valve tip with excessive force
could damage the valve.
4-30
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ENG
Valve spring compressor
90890-04019
Valve spring compressor
attachment
90890-04108