Yamaha FZ09E Service Manual page 322

EWAIAC l 700
AwARNING
If the throttle bodies are subjected to strong
shocks or dropped during cleaning, replace
them as a set.
1. Check:
• Throttle bodies
Cracks/damage
4
Replace the throttle bod-
ies as a set.
2. Clean:
• Throttle bodies
ECA1ACl 701
NOTICE~~~~~~~~~~~~
• Observe the following precautions; other-
wise, the throttle bodies may not operate
properly.
• Do not subject the throttle bodies to exces-
sive force.
• Clean the throttle bodies in the recom-
mended cleaning solvent.
• Do not use any caustic carburetor cleaning
solution.
• Do not apply cleaning solvent directly to
any plastic parts, sensors, or seals.
• Be careful not to remove the white paint
mark that identifies the standard throttle
body.
• Do not turn the bypass air screws " a"; oth-
erwise, the throttle body synchronization
will be affected.
l
Recommended cleaning solvent
Yamaha Oil & Brake Cleaner
••••••••••••••••••••••••••••••••
a. Place the throttle bodies on a flat su rface with
the air filter case side facing up.
b. Install the caps (895-14169-00) onto the hose
fittings "a".
7-9
THROTILE BODIES
a a
c. Hold the throttle valves in the open position.
EWA1FCl 104
AwARNING
When cleaning the throttle bodies, be careful
not to injure yourself on the throttle valves or
other components of the throttle bodies.
ECA1ACl700
NOTICE ~~~~~~~~~~~~
• Do not open the throttle valves by supply-
ing electrical power to the throttle bodies.
• Do not use tools to open the throttle valves
or to keep them In the open position.
•Do not open the throttle valves quickly.
d. Apply the recommended cleaning solvent to
the throttle valves and the inside of the throt-
tle bodies to remove any carbon deposits.
TIP ~~~~~~~~~~~~~~-
• Do not allow any cleaning solvent to enter the
opening for the injectors.
• Do not apply any cleaning solvent to the por-
tions of the throttle valve shafts between the
throttle bodies.
e. Remove the carbon deposits from the inside
of each throttle body in a downward direction,
from the air filter case side of the throttle body
to the engine side.
NOTICE
~~~~~~~~~~~~~~
• Do not use a tool, such as a wire brush, to
remove the carbon deposits; otherwise, the
inside of the throttle bodies may be dam-
aged.