Thermostat - Suzuki DF 90 Service Manual

THERMOSTAT

REMOVAL
1. Disconnect water hose 1 from thermostat cover.
2. Remove the three (3) bolts 2 securing the thermostat cover,
then remove the cover 3 and thermostat 4 .
INSPECTION
Inspect thermostat for salt deposits, corrosion, wear or other
damage.
Clean or replace if necessary.
Thermostat operation
Check thermostat opening temperature as follows :
1. Insert a length of thread between thermostat valve / body
and suspend thermostat in a container filled with water.
2. Place thermometer in container and heat water.
Observe water temperature when thermostat valve opens
and releases thread.
Thermostat operating temperature :
Standard : 58 – 62 ° ° ° ° ° C (136 – 144 ° ° ° ° ° F)
INSTALLATION
Installation is reverse order of removal with special attention to
the following steps.
• Assemble thermostat 1 and thermostat cover 2 to cylinder
head block and secure with bolts.
Thermostat cover bolt : 10 N . m (1.0 kg-m, 7.0 Ib.-ft.)
POWER UNIT
Thermometer
Heater
6-63