Yamaha F30A Service Manual page 132

POWR
2. Install the valve 2, valve spring seat 3,
valve spring 4, and valve spring retainer
5 in the sequence shown, and then
attach the special service tools.
6
7
NOTE:
Face the wide-pitched spring end a, identi-
fied by the paint mark, toward the valve
spring retainer 5.
Valve spring compressor 6:
90890-04019
Valve spring compressor
attachment 7: 90890-06320
3. Compress the valve spring, and then
install the valve cotters 8.
4. Lightly tap the valve spring retainer with
a plastic hammer to set the valve cotters
8 securely.
5-37
Power unit
a
E
S6AG5290
5
E
4
3
2
5. Install a new oil seal 9.
E
Driver rod LS 0: 90890-06606
Ball bearing attachment A:
90890-06631
6. Install the camshaft B in the direction of
the arrow shown, and then tighten the
bolt C.
8
S67C5162
8
S6AG5310
0
A
9
S67C5109
67C3K11