Honda CBR650RA Shop Manual page 248

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COOLING SYSTEM
WATER PUMP
MECHANICAL SEAL INSPECTION
Remove the under cowl (page 2-11) (CBR650RA).
Check the bleed hole [1] of the water pump for signs of
coolant leakage.
• A small amount of coolant weeping from the bleed
hole is normal.
• Make sure that there are no continuous coolant
leakage [2] from the bleed hole while operating the
engine.
Replace the water pump body if necessary.
REMOVAL/INSTALLATION
• Place a clean oil pan under the engine because
engine oil will flow out when removing the water
pump body. Add the recommended engine oil to the
specified level after installation (page 3-10).
Drain the coolant (page 8-4).
Remove the drive sprocket cover (page 2-15).
Support the motorcycle in an upright position on a level
surface.
Disconnect the following from the water pump cover:
– Cylinder block-to-water pump hose [1]
– Water pump-to-cylinder head hose [2]
Remove the water pump drain bolt [1] and sealing
washer [2].
Loosen the cover bolt [3].
Remove the three mounting bolts [4] and water pump
assembly [5].
Remove the thrust washer [1] and O-ring [2].
Remove the cover bolt [3], then separate the water
pump cover [4] and water pump body [5].
8-10
[2]
[2]
[5]
[4]
[3]
[1]
[2]
[5]
[1]
[1]
[3]
[1]/[2]
[4]