Joyner JNSZ1600QL Owner's Manual page 86

——Install the water pump assembly inside the cylinder block and screw in four retaining bolt by hand,
then tighten to 7.0—10.0Nm.
Note: The water pump assembly may not be serviced. When water seal or bearing is damaged, the
water pump assembly should be replaced
3) The removal and installation of thermostat seat with thermostat assembly
Fig.121 Fig.122
Fig.123 Fig.124
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