Yamaha F4B - Crankcase and Cylinder Head Service

7-21
POWR
Power unit
Crankcase
No. Part name Q’ty Remarks
1 Oil seal 1

2 Oil seal 2 
3O-ring 1 
4 Rotor assembly 1
5Plate 1
6Screw 2 M6  12 mm
7Gasket 1 
8 Oil strainer 1
9Spring 1
10 Cover 1
11 Crankcase bolt 10 M6  50 mm
12 Dowel 2
13 Gasket 1 
14 Crankcase 1
15 Holder 1
16 Hose 1
17 Gasket 1 
13
12
12
14
16
15
17
18
21
20
19
19
10
7
8
6
6
5
4
22
23
3
1
11
11
11
11
11
9
19
2
11
11
11
11
a
b
5 N·m (0.5 kgf·m, 3.7 ft·lb)
11 N·m (1.1 kgf·m, 8.1 ft·lb)
20 N·m (2.0 kgf·m, 14.8 ft·lb)