Yamaha YZF-R1, Service Manual, Page: 416 / 808

AIR FILTER CASE
7-9
b. Temporary tighten the cross bar bolts “a”.
c. Install the intake funnel assembly and air
filter case.
d. Tighten the Intake funnel assembly bolt
“b” and air filter case bolt “c”.
e. Tighten the cross bar bolt “a”.
EAS30465
CHECKING THE INTAKE FUNNEL
OPERATION
1. Check:
• Intake funnel servo motor operation
a. Activate the diagnostic mode and select
the diagnostic code number “34”.
Refer to “SELF-DIAGNOSTIC FUNC-
TION AND DIAGNOSTIC CODE TABLE”
on page 9-32.
b. Set the start/engine stop switch to “ ”.
c. Check that the stopper lever “a” contacts
the lever “b” (figure “A”).
d. Check that the intake funnel seal mates
with the fixed intake funnel (figure “B”).
TIP
The intake funnels should move smoothly and
should not make any unusual sound.
EAS30466
INSTALLING THE SECONDARY INJECTORS
NOTICE
ECA21550
• 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.
• 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-
tor.
2. Install the injectors to the fuel rails.
3. Install the secondary injector joint, making
sure to install them in the correct direction.
4. Install the injector assemblies to the upper air
filter case.
5. Check the injector pressure after the injectors
are installed.
Refer to “CHECKING THE INJECTOR
PRESSURE” on page 7-17.
EAS30467
INSTALLING THE UPPER AIR FILTER CASE
1. Install:
• Upper air filter case
T
R
.
.
Intake funnel assembly bolt
8 N·m (0.8 kgf·m, 5.9 lb·ft)
Air filter case bolt
8 N·m (0.8 kgf·m, 5.9 lb·ft)
T
R
.
.
Cross bar bolt
23 N·m (2.3 kgf·m, 17 lb·ft)
a
b
a
b
2
3
1 1
c c c c
A. Upper
B. Lower
T
R
.
.
Fuel rail screw (secondary injec-
tor)
3.5 N·m (0.35 kgf·m, 2.6 lb·ft)
a
b