Yamaha XVS650 Service Manual page 70

CARBURETOR SYNCHRONIZATION
1':gS I
_I
6.Adjust:
• Carburetor synchronization
**********************************
Adjustment steps:
.Synchronize carburetor #1 to carburetor
#2 by turning the synchronizing screw
CD
until both gauges read the same.
• Rev the engine two or three times, each
time for less than a second, and check the
synchronization again.
Vacuum pressure at idle speed:
29.0 kPa (220 mm Hg, 8.7 in Hg)
NOTE: _
The difference between the two carburetors
should not exceed 1.33 kPa (10 mm Hg,
0.39 in Hg).
**********************************
7.Check:
• Engine idling speed
Out of specification ~ Adjust.
8.Stop the engine and detach the measur-
ing equipment.
9.Adjust
• Throttle cable free play
Refer to "THROTTLE CABLE ADJUST-
MENT".
Free play (throttle cable):
4 .... 6 mm (0.16 .... 0.24 in)
At throttle grip flange
10.lnstall:
• Vacuum plugs
3-9