Mercury 40 Service Manual page 204

CYLINDER HEAD
Intake/Exhaust Valves
3
4
1
110
5
4
3
2
4-Stroke Outboard Oil (92-828000A12)
110
Page 4A-8
110
7
6
5
7
10
9
8
7
7
6
10
9
8
110
11
12
14
15
13
14
12
16
90-828631R3 MARCH 1999