Throttle Bodies; Checking The Injectors (Before Removing); Removing The Fuel Hose (Fuel Rail Side); Removing The Injectors - Yamaha TRACER MT09TRA Service Manual

EAS30475
CHECKING THE INJECTORS (BEFORE
REMOVING)
1. Check:
• Injectors
Use the diagnostic code numbers "36"–"38".
Refer to "SELF-DIAGNOSTIC FUNCTION
AND DIAGNOSTIC CODE TABLE" on page
9-5.
EAS31158
REMOVING THE FUEL HOSE (FUEL RAIL
SIDE)
1. Remove:
• Fuel tank
Refer to "REMOVING THE FUEL TANK" on
page 7-2.
2. Remove:
• Fuel hose (fuel rail side)
ECA17490
NOTICE
Be sure to disconnect the fuel hose by hand.
Do not forcefully disconnect the hose with
tools.
TIP
• To remove the fuel hose from the fuel rail joint,
slide the fuel hose connector cover "1" on the
end of the hose in the direction of the arrow
shown, press the two buttons "2" on the sides
of the connector, and then remove the hose.
• Before removing the hose, place a few rags in
the area under where it will be removed.
• It is prohibited to wear the cotton work gloves
or equivalent coverings.
EAS30476

REMOVING THE INJECTORS

EWA17330
WARNING
• Check the injectors in a well-ventilated area
free of combustible materials. Make sure
that there is no smoking or use of electric
tools in the vicinity of the injectors.
• Be careful when disconnecting the fuel
hose. Any remaining pressure in the fuel
hose may cause the fuel to spray out. Place
a container or rag under the hose to catch
any fuel that spills. Always clean up any
spilt fuel immediately.
• Turn the main switch to "OFF" and discon-
nect the negative battery lead from the bat-
tery terminal before removing the injectors.
1. Remove:

• Throttle bodies

• Fuel rail "1"
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Remove the fuel rail bolts "2" as shown.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
EAS30477

CHECKING THE INJECTORS

1. Check:
• Injectors
Obstruction  Replace and check the fuel
pump/fuel supply system.
Deposit  Replace.
Damage  Replace.
2. Check:
• Injector resistance
Refer to "CHECKING THE FUEL INJEC-
TORS" on page 8-148.
EAS30769
CHECKING AND CLEANING THE THROTTLE
BODIES
TIP
Clean the throttle bodies only if they cannot be
synchronized using the bypass air screws. Be-
fore cleaning the throttle bodies, check the fol-
lowing items:
• Valve clearance
• Spark plugs
• Air filter element
• Throttle body joints
• Fuel hose
• Exhaust system
• Cylinder head breather hose
7-7
THROTTLE BODIES
2
1