Yamaha YZF-R1P 2001-2003, Service Manual

Page: 111 / 439

3 - 16
CHK
ADJ
SYNCHRONIZING THE THROTTLE BODIES/
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
@
The difference in vacuum pressure between
two throttle bodies should not exceed 1.33 kPa
(10 mmHg, 0.39 inHg).
▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
9. Measure:
• engine idling speed
Out of specification
→
Adjust.
Make sure that the vacuum pressure is
within specification.
10.Stop the engine and remove the measuring
equipment.
11.Adjust:
• throttle cable free play
Refer to “ADJUSTING THE THROTTLE
CABLE FREE PLAY”.
12.Remove:
• digital tachometer
• carburetor syncronizer
13.Remove:
• fuel tank
14.Install:
• fuel tank
Refer to “FUEL TANK”.
• rider seat
Refer to “SEATS”.
Throttle cable free play (at the
flange of the throttle grip)
3 ~ 5 mm (0.12 ~ 0.20 in)
EAS00052
ADJUSTING THE ENGINE IDLING SPEED
NOTE:
@
Prior to adjusting the engine idling speed, the
throttle bodies synchronization should be
adjusted properly, and the engine should have
adequate compression.
1. Start the engine and let it warm up for sev-
eral minutes.