Carburetor Operation - Yamaha F50D Servise Manual

TECH
FEA

Carburetor operation

å
3
2
1
0
9
ç
1
0
a
:
b
:
9
c
:
å Idle and low speed operation
∫ Medium speed operation
ç High-speed operation
1 Pilot screw
2 Pilot outlet
3 Bypass holes
4 Venturi
5 Main nozzle
2-9
Technical features and description
2
6
8
7
2
6
7
∫
2
3
1
0
4
9
5
3
5
6 Pilot jet
7 Main jet
8 Pilot air jet
9 Main air jet
0 Throttle valve
a Air
b Air-fuel mixture
c Fuel
3
2
8
5
3
4
6
7