Yamaha YZF-R7 Owner's Service Manual page 84

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SYNCHRONIZING THE THROTTLE BODIES
1 1
a a
1 1 1 1
4. Install:
• vacuum gauge attachments
• vacuum gauge
• engine tachometer
2 2
NOTE:
Disconnect the ignition coil coupler and
remove the ignition coil 1 of cylinder
#1, remove the rubber cover 2, and
wrap the engine tachometer lead sev-
eral times around section a of the igni-
tion coil. Then, install the ignition coil
and connect the ignition coil coupler.
5. Install:
• fuel tank
6. Start the engine and let it warm up for
several minutes.
7. Measure:
• engine idling speed
8. Adjust:
• throttle body synchronization
a. Turn the air screws 1 to adjust the
NOTE:
Do not turn the synchronizing screws.
3 - 15
CHK
ADJ
(into the bolt holes)
(onto the vacuum gauge attachments)
(onto the ignition coil of cylinder #1)
Vacuum gauge
90890-03094
Vacuum gauge attachment
90890-03060
Engine tachometer
90890-06760
Refer to "FUEL TANK AND AIR FIL-
TER".
Out of specification → Adjust.
Refer to "ADJUSTING THE ENGINE
IDLING SPEED".
Engine idling speed
1,000 ~ 1,200 r/min
vacuum pressure of all throttle bodies
to specification.