Yamaha YZF-R1 Series Service Manual page 405

Mechanical seal installer (ø33)
90890-04132
Water pump seal installer (ø33)
YM-33221-A
Middle driven shaft bearing driv-
er
90890-04058
Middle drive bearing installer 40
& 50 mm
YM-04058
2. Water pump housing
3. Mechanical seal installer
4. Middle driven shaft bearing driver
A. Push down
3. Install:
• Mechanical seal (impeller side) "1"
TIP
• Before installing the mechanical seal (impeller
side), apply tap water or coolant onto its outer
surface.
• If the top of the mechanical seal is dirty, clean
it.
G089035
EAS30449
INSTALLING THE WATER PUMP
1. Install:
• Water pump assembly "1"
TIP
Align the slit "a" on the impeller shaft with the
projection "b" on the oil pump driven sprocket.
2. Fill:
• Cooling system
3. Check:
1
• Cooling system
4. Measure:
• Radiator cap valve opening pressure
New
6-16
WATER PUMP
a
1
(with the specified amount of the recom-
mended coolant)
Refer to "CHANGING THE COOLANT" on
page 3-32.
Leaks → Repair or replace the faulty part.
Below the specified pressure → Replace the
radiator cap.
Refer to "CHECKING THE RADIATOR" on
page 6-5.
b