Impeller Shaft Removal Points; Oil Seal Removal Points; Impeller Shaft Inspection - Yamaha YZ250(N)/LC Owner's Service Manual

WATER PUMP
EC4G3000
REMOVAL POINTS
EC4G3110
Impeller shaft
1. Remove:
9Impeller 1
9Plain washer 2
9Impeller 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, discoloration
of coolant, or milky transmission oil.
1. Remove:
9Bearing 1
2. Remove:
9Oil seal 1
EC4G4000
INSPECTION
EC444200
Impeller shaft
1. Inspect:
9Impeller shaft 1
Bend/Wear/Damage
Fur deposits
4-52
ENG
Replace.
Clean.