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NOTE 1 : Because of the difference of measuring method between the analogue circuit tester and the

digital circuit tester, polarity of tester needles should be reversed.

NOTE 2 : ”Continuity” means forward direction characteristics of the diode, and different from short

circuit condition (in which a pointer of the tester goes out of its normal scale), shows resistance

to some extent. When results of the checking indicates failure even in one section, replace

with a new one.

NOTE 3 : Simpson brand analogue testers have the characteristics as same as the digital circuit tester.

9-9 OIL SENSOR

(1) Disconnect two (2) wires comming from the

sensor at the connection.

(2) Loosen the sensor to remove it from the en-

gine.

(3) Plug the opening of oil filler hole (created after

sensor is removed) with suitable means such

as oil gauge.

(4) Connect the removed wires again with the oil

sensor.

(5) Start the engine with the oil sensor removed

and confirm if ;

a. Engine stops after 5 seconds which is normal, or

b. Engine does not stop after more than 10 seconds which is unusual.

NOTE : The sensor will not operate properly when wire is broken or poorly connected. Check the wires

for correct connection. If it fails to stop within 5 seconds after the wirings have checked, the

sensor is wrong. Replace the sensor with new one.

9-10 EXCITING COIL

(1) Disconnect two (2) yellow wires which come out from the exciting coil through the hole of the

crankcase and connected with AVR in the control box .

(2) Check the resistance between these two (2) yellow wires with a circuit tester.

Fig. 9-11

ecnatsiseR

4.2 Ω

Robin RGV7500 Service Manual

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