Checking The Water Pump - Yamaha YFZ450S 2003 Service Manual

WATER PUMP
EBS00139

CHECKING THE WATER PUMP

1. Check:
• water pump housing 1
• impeller 2
• impeller shaft 3
Cracks/damage/wear → Replace.
2. Check:
• oil seal
New
• water pump inlet pipe
Cracks/damage/wear → Replace.
• bearing
Rough movement → Replace.
5 - 7
COOL