Replacing The Throttle Bodies; Installing The Injectors; Checking The Injector Pressure - Yamaha TMAX XP530E-A 2017 Service Manual

aged.
• Do not allow carbon deposits or other for-
eign materials to enter any of the passages
in each throttle body or in the space be-
tween the throttle valve shaft and the throt-
tle body.
f. After removing the carbon deposits, clean the
inside of the throttle bodies with the recom-
mended cleaning solvent, and then dry the
throttle bodies using compressed air.
g. Make sure that there are no carbon deposits
or other foreign materials in any of the pas-
sages "a" in each throttle body or in the space
"b" between the throttle valve shaft and the
throttle body.
a
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
3. Install the throttle bodies.
4. Reset:
• ISC (idle speed control) learning values
Use the diagnostic code number "67".
Refer to "SELF-DIAGNOSTIC FUNCTION
AND DIAGNOSTIC CODE TABLE (ECU)" on
page 9-5.
5. Adjust:
• Throttle bodies synchronizing
Out of specification  Replace the throttle
bodies.
Refer to "SYNCHRONIZING THE THROT-
TLE BODIES" on page 3-9.
EAS31160

REPLACING THE THROTTLE BODIES

1. Remove the throttle bodies from the vehicle.
2. Install a new throttle bodies to the vehicle.
3. Reset:
• ISC (idle speed control) learning values
Use the diagnostic code number "67".
Refer to "SELF-DIAGNOSTIC FUNCTION
AND DIAGNOSTIC CODE TABLE (ECU)" on
page 9-5.
4. Adjust:
• Throttle bodies synchronizing
Refer to "SYNCHRONIZING THE THROT-
5. Place the vehicle on a maintenance stand so
6. Check:
• Engine idling speed
EAS30480

INSTALLING THE INJECTORS

ECA21550
NOTICE
• Always use new O-rings.
• When installing the injectors, do not allow
any foreign material to enter or adhere to
the injectors, fuel rails, or O-rings.
• Be careful not to twist or pinch the O-rings
when installing the injectors.
• When installing the injector, install it at the
same position as the removed cylinder.
• If an injector is subject to strong shocks or
excessive force, replace it.
b
• If installing the original fuel rail and bolts,
remove the white paint marks using a
cleaning solvent. Otherwise, paint chips on
the bolt seats could prevent the bolts from
being tightened to the specified torque.
1. Install a new seal onto the end of each injec-
2. Install the injectors to the fuel rail, making
3. Install the injector assembly to the intake
4. Check the injector pressure after the injectors
EAS30481

CHECKING THE INJECTOR PRESSURE

TIP
• After installing the injectors, perform the follow-
ing steps to check the injector pressure.
• Do not allow any foreign materials to enter the
fuel lines.
1. Check:
• Injector pressure
7-11
THROTTLE BODY
TLE BODIES" on page 3-9.
that the rear wheel is elevated.
Start the engine, warm it up, and then mea-
sure the engine idling speed.
Engine idling speed
1100–1300 r/min
tor.
sure to install them in the correct direction.
manifold.
Fuel rail bolt
3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
are installed.
Refer to "CHECKING THE INJECTOR
PRESSURE" on page 7-11.