Yamaha FZ6-SS 2004 Service Manual page 92

SYNCHRONIZING THE THROTTLE BODIES
6. Measure:
S engine idling speed
Out of specification ! Adjust.
Refer to "ADJUSTING THE ENGINE IDLING
SPEED".
Engine idling speed
1,250 X 1,350 r/min
7. Adjust:
S throttle body synchronization
a. With throttle body #1 as standard, adjust
throttle bodies #2, #3, and #4 using the air
screws 1 .
#1 2 , #2 3 , #3 4 , #4 5
NOTE:
S After each step, rev the engine two or three
times, each time for less than a second, and
check the synchronization again.
S If the air screw is removed, turn the screw 3/4
turn in and be sure to synchronize the throttle
body.
CAUTION:
Do not use the throttle valve adjusting
screws to adjust the throttle body synchro-
nization.
Vacuum pressure at engine
idling speed
29 kPa
(218 mmHg, 8.5827 inHg)
NOTE:
The difference in vacuum pressure between
two throttle bodies should not exceed 1.33 kPa
(10 mmHg, 0.39 inHg).
3-17
CHK
ADJ