Thermostat Case Assembly; Removal; Inspection - Suzuki DL650 Service Manual

6-12 COOLING A N D LUBRICATION SYSTEM
THERMOSTAT CASE ASSEMBLY
REMOVAL
Drain the engine coolant. ( W 2 - 1 8 )
Place a rag under the thermostat case.
Remove the thermostat case cap
0.
Remove the thermostat
a.
INSPECTION
Inspect the thermostat pellet for signs of cracking.
Test the thermostat at the bench for control action, in the follow-
ing manner.
Pass a string between flange, as shown in the photograph.
Immerse the thermostat in the WATER contained in a beaker,
as shown in the illustration. Note that the immersed thermo-
stat is in suspension. Heat the water by placing the beaker on
a stove
@ I
and observe the rising temperature on a thermom-
eter
a.
Read the thermometer just when opening the thermostat. This
reading, which is the temperature level at which the thermo-
stat valve begins to open, should be within the standard
value.
Thermostat valve opening temperature
Standard: Approx. 88 O C (190 OF)