Yamaha Tenere 700 2020, Service Manual, Page: 302 / 472

THROTTLE BODIES
7-9
• Spark plugs
• Air filter element
• Throttle body joints
• Fuel hose
• Exhaust system
• Cylinder head breather hose
• Canister purge hoses
WARNING
EWA17850
If the throttle bodies are subjected to strong
shocks or dropped during checking, replace
them.
1. Check:
• Throttle bodies
Cracks/damage
→
Replace the throttle bod-
ies.
2. Clean:
• Throttle bodies
NOTICE
ECA20910
• Observe the following precautions; other-
wise, the throttle bodies may not operate
properly.
• Do not open the throttle valves quickly.
• Do not subject the throttle bodies to exces-
sive force.
• Wash the throttle bodies in a petroleum-
based solvent.
• Do not use any caustic carburetor cleaning
solution.
• Do not apply cleaning solvent directly to
any plastic parts, sensors, or seals.
• Do not directly push the throttle valves to
open them.
• Do not turn the bypass air screws “a”; oth-
erwise, the throttle body synchronization
will be affected.
a. Place the throttle bodies on a flat surface
with the air filter case side facing up.
b. Install the caps (895-14169-00) onto the
hose fittings “a”.
c. Push the lever in the direction shown in
the illustration to hold the throttle valves in
the open position.
WARNING
EWA16680
When cleaning the throttle bodies, be careful
not to injure yourself on the throttle valves or
other components of the throttle bodies.
NOTICE
ECA21190
• 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 a petroleum-based solvent to the
throttle valves and the inside of the throttle
bodies to remove any carbon deposits.
TIP
• Do not allow any petroleum-based solvent to
enter the opening for the injectors.
• Do not apply any petroleum-based solvent to
the portions of the throttle valve shafts be-
tween the throttle bodies.
e. Remove the carbon deposits from the in-
side of each throttle body in a downward
direction, from the air filter case side of the
throttle body to the engine side.
NOTICE
ECA18470
• 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.
a
a
a
a