Refer to “water pump disassembly and assembly” .
Mechanical seal
Visually inspect the mechanical seal for damage, with particular attention given to the sealing face.
Replace the mechanical seal that shows indications of leakage.

Oil seal
Visually inspect the oil seal for damage, with particular attention given to the lip.
Replace the oil seal that shows indications of leakage.

Seal washer
Visually inspect the seal washer for damage, with particular attention given to the sealing face.
Replace the seal washer that shows indications of leakage.

Impeller / shaft
Visually inspect the impeller and its shaft for damage.
Replace the impeller or shaft if necessary.

Impeller shaft journal
Visually inspect the journal for damage or scratch.
Replace the holder if necessary.

Water pump disassembly and assembly
SpecificationsPair system hose routing diagram
Pair control solenoid valve
Pair reed valve
White marking (hidden side)
Yellow marking
Blue marking
Red marking
Face the
clamp end to the top.
Make sure
the clamp is not contacted to the frame or air cleaner box.
90°
45°
15°
...
Handlebar components
Throttle grip
Grip rubber
Right handlebar switch box
Left handlebar switch box
Right handlebar
Left handlebar
Handlebar expander
Handlebar balancer
Apply handle grip bond.
23
N·m (2.3 Kgf-m, 16.5 Lbf-ft)
5.5 N·m
(0.55 Kgf-m, 4.0 L ...
DTC “c46” (p1657-h/l or p1658): excv
actuator circuit malfunction
Detected condition
Possible cause
C46
The operation signal does not reach the
excv actuator.
Excva position sensor voltage low or
high
0.14 V ≤ Sensor voltage < 4.9 V
(without the above range)
excva can not operate properly.
Excva ...