Yamaha 2014 MT-07 Service Manual page 130

• Fuel tank
Refer to "FUEL TANK" on page 7-1.
3. Disconnect:
• Intake solenoid vacuum hose (throttle body to
one way valve)
• Intake air pressure sensor hose
Refer to "THROTTLE BODIES" on page 7-9.
4. Install:
• Hoses "1" (Parts No.: 5JW-24311-00)
• 3-way joints "2" (Parts No.: 90413-05014)
• Vacuum gauge hose #1 "3"
• Vacuum gauge hose #2 "4"
• Intake solenoid vacuum hose "5"
• Intake air pressure sensor hose "6"
• Vacuum gauge "7"
Vacuum gauge
90890-03094
Vacuummate
YU-44456
A
B
1
2
A. Throttle body #1
B. Throttle body #2
5. Install:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
6. Check:
• Throttle body synchronization
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a. Start the engine, warm it up for several min-
utes, and then let it run at the specified en-
gine idling speed.
1
2
6
3
4
5
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PERIODIC MAINTENANCE
b. Check the vacuum pressure.
If out of specification → Adjust the throttle
body synchronization.
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Adjusting the throttle body synchronization
1. Adjust:
• Throttle body synchronization
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a. Start the engine, warm it up for several min-
utes, and then let it run at the specified en-
gine idling speed.
7
b. With throttle body #1 as standard, adjust
throttle body #2 using the air screw "1".
TIP
• Turn the bypass air screw using the carburetor
angle driver.
• After each step, rev the engine two or three
times, each time for less than a second, and
check the synchronization again.
• If a bypass air screw was removed, turn the
screw in fully and be sure to synchronize the
throttle bodies.
• If the throttle body synchronization can not be
adjusted using the bypass air screw, clean or
replace the throttle bodies.
• The difference in vacuum pressure between
the throttle bodies should not exceed 1.33 kPa
(10 mmHg).
▼▼▼
3-9
Engine idling speed
1100–1300 r/min
The difference in vacuum pres-
sure between the throttle bodies
should not exceed 1.33 kPa (10
mmHg).
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Engine idling speed
1100–1300 r/min
Carburetor angle driver 2
90890-03173
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