Cooling Fan Relay Inspection; Ect Sensor; Removal; Inspection - Suzuki QuadRacer LT-R450 Service Manual

6-10 COOLING AND LUBRICATION SYSTEM

COOLING FAN RELAY INSPECTION

Cooling fan relay is located in rear of the headlight assembly.
• Remove the front fender. (%7-6)
• Remove the cooling fan relay 1.
First check the insulation between A and B terminals with
tester. Then apply 12 volts to C and D terminals, + to C and
- to D, and check the continuity between A and B.
If there is no continuity, replace it with a new one.
& 09900-25008: Multi-circuit tester set
4 Tester knob indication: Continuity test (3)

ECT SENSOR

REMOVAL

• Remove the fuel tank and fuel tank lower cover. (%5-4)
• Disconnect the ECT sensor coupler 1.
• Place a rag under the ECT sensor and remove the ECT sen-
sor.

INSPECTION

• Check the ECT sensor by testing it at the bench as shown in
the figure. Connect the ECT sensor 1 to a circuit tester and
place it in the oil 2 contained in a pan, which is placed on a
stove.
• Heat the oil to raise its temperature slowly and read the col-
umn thermometer 3 and the ohmmeter.