Yamaha YZ250F(W) Owner's Service Manual page 380

OIL FILTER ELEMENT, WATER PUMP AND RIGHT
CRANKCASE COVER
EC444200
Impeller shaft
1. Inspect:
• Impeller shaft 1
Bend/wear/damage → Replace.
Fur deposits → Clean.
EC444300
Impeller shaft gear
1. Inspect:
• Gear teeth a
Wear/damage → Replace.
EC4H4600
Bearing
1. Inspect:
• Bearing
Rotate inner race with a finger.
Rough spot/seizure → Replace.
EC444400
Oil seal
1. Inspect:
• Oil seal 1
Wear/damage → Replace.
ASSEMBLY AND INSTALLATION
Oil seal
1. Install:
• Oil seal 1
NOTE:
• Apply the lithium soap base grease on the oil
seal lip.
• Install the oil seal with its manufacture's
marks or numbers facing the right crankcase
cover 2.
4 - 60
ENG