Yamaha TZ250M1 Owner's Service Manual page 150

WATER PUMP
EC4G3000
REMOVAL POINTS
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, discol-
oration of coolant, or milky transmission oil.
1. Remove:
• Bearing 1
2. Remove:
• Oil seal 1
EC4G4000
INSPECTION
EC444200
Impeller shaft
1. Inspect:
• Impeller shaft 1
Bend/Wear/Damage ≥ Replace.
Fur deposits ≥ Clean.
EC4H4600
Bearing
1. Inspect:
• Bearing 1
Rotate inner race with a finger.
Rough spot/Seizure ≥ Replace.
4-52
ENG