Yamaha F4B - Fuel Pump Operations and Checks

6-21
FUEL
Fuel system
Fuel pump
No. Part name Q’ty Remarks
1 Fuel pump 1
2 Fuel pump screw 4 M4  25 mm
3Cover 1
4 Diaphragm 1 
5 Fuel pump valve screw 2 M3  5mm
6Valve 2
7 Fuel pump body 2 1
8 Plunger 1
9Nut 4
10 Spring 1
11 Fuel pump body 1 1
12 Spring 1
13 Pin 1
14 Diaphragm 1 
15 Fuel pump bolt 2 M6  30 mm
16 O-ring 1 
14
12
13
7
6
5
1
6
5
4
2
2
2
9
15
15
10
8
16
9
2
9
9
3
11
2 N·m (0.2 kgf·m, 1.5 ft·lb)
0.5 N·m (0.05 kgf·m, 0.37 ft·lb)
7 N·m (0.7 kgf·m, 5.2 ft·lb)