Yamaha XVZ13TF 1999 Service Manual page 95

SYNCHRONIZING THE CARBURETORS
NOTE:
After each step, rev the engine two or three
times, each time for less than a second, and
check the synchronization again.
b. Synchronize carburetor #4 to carburetor #3
by turning the synchronizing screw 2 in ei-
ther direction until both gauges read the
same.
c. Synchronize carburetor #2 to carburetor #3
by turning the synchronizing screw 3 in ei-
ther direction until both gauges read the
same.
Vacuum pressure at engine idling
speed
37 kPa (280 mmHg)
NOTE:
The difference in vacuum pressure between
two carburetors should not exceed 1.33 kPa
(10.0 mmHg).
7. Check:
S engine idling speed
Out of specification ! Adjust.
8. Stop the engine and remove the measuring
equipment.
9. Adjust:
S throttle cable free play
Refer to "ADJUSTING THE THROTTLE
CABLE FREE PLAY".
Throttle cable free play (at the
flange of the throttle grip)
4 X 6 mm
10. Install:
S vacuum plugs
3-14
CHK
ADJ