Adjusting The Engine Idling Speed - Yamaha YZF-R6 99 Service Manual

SYNCHRONIZING THE CARBURETORS/

ADJUSTING THE ENGINE IDLING SPEED

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
24.0 kPa (0.24 kg/cm
NOTE:
The difference in vacuum pressure between
two carburetors should not exceed 1.33 kPa (10
mm Hg).
8. Measure:
S engine idling speed
Out of specification ! Adjust.
9. Stop the engine and remove the measuring
equipment.
10. 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)
6
EB303020
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
Prior to adjusting the engine idling speed, the
carburetor synchronization should be adjusted
properly, the air filter element should be clean,
and the engine should have adequate com-
pression.
1. Start the engine and let it warm up for several
minutes.
3-18
CHK
ADJ
2
)
8 mm