Impeller Shaft Inspection; Impeller Shaft Gear Inspection; Bearing Inspection; Oil Seal Inspection - Yamaha YZ250F(R) Owner's Service Manual

OIL FILTER ELEMENT, WATER PUMP AND RIGHT
CRANKCASE COVER
EC444200
Impeller shaft
1. Inspect:
Impeller shaft 1
G
Bend/wear/damage → Replace.
Fur deposits → Clean.
EC444300
Impeller shaft gear
1. Inspect:
Gear teeth a
G
Wear/damage → Replace.
EC4H4600
Bearing
1. Inspect:
Bearing
G
Rotate inner race with a finger.
Rough spot/seizure → Replace.
EC444400
Oil seal
1. Inspect:
Oil seal 1
G
Wear/damage → Replace.
ASSEMBLY AND INSTALLATION
Oil seal
1. Install:
Oil seal 1
G
NOTE:
Apply the lithium soap base grease on the oil
G
seal lip.
Install the oil seal with its manufacture's
G
marks or numbers facing the right crankcase
cover 2.
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ENG