Yamaha 2003 YZ450F, Owner'S Service Manual

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ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
REMOVAL POINTS
EC4G3110
Impeller shaft
1. Remove:
●
Impeller 1
●
Plain washer 2
●
Impeller shaft 3
NOTE:
Hold the impeller shaft on its width across the
flats
a
with spanners, etc. and remove the
impeller.
EC4G3210
Oil seal
NOTE:
It is not necessary to disassemble the water
pump, unless there is an abnormality such as
excessive change in coolant level, discolora-
tion of coolant, or milky transmission oil.
1. Remove:
●
Bearing 1
●
Oil seal 2
INSPECTION
EC444200
Impeller shaft
1. Inspect:
●
Impeller shaft 1
Bend/wear/damage
→
Replace.
Fur deposits
→
Clean.