Adjusting The Throttle Cable Free Play - Yamaha YZFR6X(C) 2008 Service Manual

• If you are unable to adjust the throttle body
synchronization using this procedure, use
the following procedure instead.
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Alternate procedure
NOTE:
Use this alternate procedure if you are unable
to adjust the throttle body synchronization
using the basic procedure.
a. Start the engine, warm it up for several
minutes, and then let it run at the specified
engine idling speed.
Engine idling speed
1250–1350 r/min
b. Turn all of the bypass air screws in fully.
c. Using the throttle body with the lowest vac-
uum pressure as the standard, turn out the
bypass air screws of the other throttle bod-
ies to adjust them.
NOTE:
• Do not turn out the bypass air screw of the
throttle body with the lowest vacuum pres-
sure.
• After each step, rev the engine two or three
times, each time for less than a second, and
check the synchronization again.
• If an air screw was removed, turn the screw
3/4 turn in and be sure to synchronize the
throttle body.
Intake vacuum
20.0 kPa
mmHg)
NOTE:
The difference in vacuum pressure between
two throttle bodies should not exceed 1.33 kPa
(10 mmHg).
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7. Stop the engine and remove the measuring
equipment.
8. Allow the engine to cool, and then start the
engine and check that the engine speed
does not rise abnormally high.
9. Adjust:
• Throttle cable free play
(5.9 inHg) (150
3-8
Refer to "ADJUSTING THE THROTTLE
CABLE FREE PLAY" on page 3-8.
Throttle cable free play
3.0–5.0 mm (0.12–0.20 in)
10. Install:
• Caps
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
EAS20630
ADJUSTING THE THROTTLE CABLE FREE
PLAY
NOTE:
Prior to adjusting the throttle cable free play,
the engine idling speed and carburetor syn-
chronization should be adjusted properly.
1. Check:
• Throttle cable free play "a"
Out of specification → Adjust.
Throttle cable free play
3.0–5.0 mm (0.12–0.20 in)
2. Adjust:
• Throttle cable free play
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a. Loosen the locknut "1".
b. Turn the adjusting nut "2" in direction "a" or
"b" until the specified throttle cable free
play is obtained.
Direction "a"
Throttle cable free play is increased.
Direction "b"
Throttle cable free play is decreased.
c. Tighten the locknut "1".
ENGINE
a