Exploded View

1. Gasket
2. Water pump
3. Water pump pulley

: Always replace after every
disassembly.

: N·m (kg-m, in-lb)
: N·m (kg-m, ft-lb)

Removal and Installation

REMOVAL

1. Drain engine coolant from radiator. Refer to CO-37, "Draining".

CAUTION:
• Perform this step when the engine is cold.

• Never spill engine coolant on drive belt.

2. Steer front wheel to the right.

3. Remove front fender protector (RH). Refer to EXT-22, "Removal and Installation".

4. Loosen mounting bolts of water pump pulley before loosening belt tension of drive belt.

5. Remove drive belt. Refer to EM-160, "Removal and Installation".

6. Remove water pump pulley.

7. Remove water pump.

• Loosen mounting bolts in reverse order as shown in the figure.

• Engine coolant will leak from cylinder block, so have a receptacle ready below.

CAUTION:
• Handle water pump vane so that it does not contact any other parts.

• Water pump cannot be disassembled and should be replaced as a unit.

INSTALLATION

Install in the reverse order of removal.

Inspection

INSPECTION AFTER REMOVAL

• Check visually that there is no significant dirt or rusting on water pump body and vane (A).

• Check that there is no looseness in vane shaft, and that it turns smoothly when rotated by hand.

• Replace water pump, if necessary.

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the radiator cap tester (commercial service tool). Refer to CO-37, "Inspection".

• Start and warm up the engine. Check visually that there is no leakage of engine coolant.