Removing The Cylinder Head; Disassembling The Cylinder Head - Yamaha F30A Service Manual

POWR

Removing the cylinder head

1. Remove the cylinder head cover.
2. Remove the cylinder head bolts in the
sequence shown.
2
4
3
1
CAUTION:
Do not scratch or damage the mating sur-
faces of the cylinder head and cylinder
block.

Disassembling the cylinder head

1. Remove the oil pump assembly 1.
1
2. Remove the bolts 2, retainers 3,
springs 4, rocker arm shaft 5, and
rocker arms 6.
3
3
2
5 6 2
5-29
Power unit
5 6
9 0
B A
8 7
S67C5068
S67C5069
4 4
3 3
6
2 6 2 S67C5070
NOTE:
• Loosen the locknuts and adjusting screws
to ease the tension on the rocker arm shaft
5 before removing it.
• Be sure to keep the parts in the order as
they were removed.
3. Remove the bolt 7, camshaft 8, and oil
seal 9.
8
4. Remove the intake and exhaust valves.
0
A
NOTE:
Be sure to keep the valves, springs, and
other parts in the same order as removed.
Valve spring compressor 0:
90890-04019
Valve spring compressor
attachment A: 90890-06320
7
9
S67C5071
S67C5174
67C3K11