Yamaha F4B Service Manual page 87

k
j
7. Install the pilot jet l, the spring m, a
new O-ring n, and the pilot screw o.
n
m
A For European market
B For Oceanian market
Pilot screw driver p: 90890-06673
8. Turn the pilot screw o in until it is lightly
seated, and then turn it out the specified
number of turns.
Pilot screw setting:
F4B: 1 3/8 ± 3/4 turns out
F5A: 2 1/2 ± 3/4 turns out
F6C: 1 3/8 ± 3/4 turns out
h
i
A
p
o
B
o
l
Carburetor
0
1
2
3
4
5
6
7
8
9
10
A
6-20