Yamaha YZF-R1 Series Service Manual page 415

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2. Loosen:
• Intake funnel assembly bolt "1"
1
3. Disconnect:
• Crankcase breather hose
• Air induction system hose
• Intake funnel servo motor coupler
4. Remove:
• Air filter case
EAS30461
REMOVING THE INTAKE FUNNEL
ASSEMBLY
1. Remove:
• Intake funnel servo motor rod assembly
• Intake funnel servo motor
2. Remove:
• Intake funnel assembly
ECA26860
NOTICE
• Do not disassemble the intake funnel as-
sembly.
• Do not remove the intake funnel bolts from
the intake funnel joint.
a. Keep the two tabs "a" pushed in the direc-
tion shown in the illustration and separate
the intake funnel assembly from air filter
case.
EAS30462
CHECKING THE SECONDARY 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 8-51.
EAS31664
CHECKING THE AIR FILTER CASE SEAL
1. Check:
1
• Air filter case seal
Damage → Replace.
EAS30463
CHECKING THE INTAKE FUNNEL
1. Check:
• Intake funnel servo motor rod assembly
Damage/scratches → Replace.
• Intake funnel assembly
Cracks/damage → Replace.
2. Check:
• Intake funnel movement
Sticks → Replace the intake funnel assem-
bly.
ECA17550
NOTICE
• Make sure that the intake funnel smoothly
moves to the contacting surface between
upper stopper and lower seating position
when it is moved by hand.
• Make sure that the intake funnel smoothly
strokes from the upper position to the seat-
ing position by its own weight.
A. Upper
B. Lower
EAS31665
INSTALLING THE INTAKE FUNNEL AND AIR
a
FILTER CASE
1. Install:
• Cross bar "1"
• Intake funnel servo motor
• Intake funnel servo motor rod assembly
• Air filter case "2"
• Intake funnel assembly "3"
a. Install the cross bar "1".
7-8
AIR FILTER CASE

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