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WATER PUMP
COOL
NOTE:
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YP******
D It is not necessary to disassemble the water
pump, unless there is no abnormality such as
excessive change in coolant temperature
and/or level, discoloration of coolant, or
milky transmission oil.
D If necessary, replace water pump as an as-
sembly.
YP******
INSPECTION
1. Inspect:
D Impeller shaft
Wear/damage ! Replace.
Fur deposits ! Clean.
2. Inspect:
D Impeller shaft gear
Wear/damage ! Replace.
3. Inspect:
D Mechanical seal
1
Damage/worn/wear ! Replace.
YP******
WATER PUMP INSTALLATION
1. Install:
D Mechanical seal
1
Installation steps:
D Apply the Yamaha bond 1215 to the outside
of the mechanical seal.
D Install the mechanical seal by using the me-
chanical seal installer
2
and middle shaft
bearing driver
3
.
Mechanical seal installer:
90890-04078
Middle shaft bearing driver:
90890-04058