COOLING AND LUBRICATION SYSTEM 5-7
INSPECTION
• Check the thermo-switch closing or opening temperatures by
testing it at the bench as shown in the figure. Connect the
thermo-switch to a circuit tester and place it in the oil contained
in a pan, which is placed on a stove.
• Heat the oil to raise its temperature slowly, and read the col-
umn thermometer when the switch closes or opens.
[ 09900-25008: Multi circuit tester set
< Tester knob indication: Continuity test (
)
 Cooling fan thermo-switch operating temperature
Standard (OFF
→→
→→
→ON): Approx. 105°C (221°F)
(ON
→→
→→
→OFF): Approx. 100°C (212°F)
#
* Take special care when handling the thermo-switch. It
may cause damage if it gets a sharp impact.
* Do not contact the cooling fan thermo-switch 1 and
the column thermometer 2 with a pan.
INSTALLATION
• Install the O-ring 1.
• Tighten the cooling fan thermo-switch to the specified torque.
! Cooling fan thermo-switch: 17 N
.
m
(1.7 kgf
.
m, 12.5 lb-ft)
• Pour engine coolant. (2-18)
• Install the under cowling. (6-5)
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