Yamaha Waverunner FX 160 Service Manual page 210

FUEL
#1
È
7
É
8
FUEL INJECTION SYSTEM
#4
#3
#2
6
c. Turn synchronizing screw #1 3 clock-
wise approximately 7 times until it starts
to contact the lever.
NOTE:
• Butterfly valve #1 should be fully closed.
Butterfly valves #2 and #3 open if the
screw is turned more than 7 times.
• If butterfly valves #1, #2, and #3 are not
fully closed, close the valves by adjusting
synchronizing screw #1 3.
d. Turn synchronizing screw #3 5 clock-
wise approximately 7 times until it starts
to contact the lever.
NOTE:
• Butterfly valve #4 should be fully closed.
Butterfly valves #1, #2, and #3 open if the
screw is turned more than 7 times.
• If all butterfly valves are not fully closed,
close the valves by adjusting synchroniz-
ing screw #3 5.
e. Check that all butterfly valves are fully
closed and that they open simulta-
neously.
NOTE:
If all butterfly valves are not fully closed,
close the valves by repeating steps a– d.
f. Turn the throttle stop screw 2 clockwise
approximately 1.5 times until it starts to
contact the throttle lever.
g. Remove the plugs 6.
h. Install the carburetor synchronizer 7 or
vacuum gauge 8.
È For USA and Canada
É For worldwide
Carburetor synchronizer:
YU-08030
Vacuum gauge:
90890-03094
4-23
E