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regulator is on, and the generator can charge the battery, but the starting motor cannot start, to
avoid accidents.
XI. Oil-pressure sensor & water-temperature sensitive plug
With double metal-piece design internally, the oil-pressure sensor and water-temperature
sensitive plug are matched for electro-thermal type meters. Inside, there is silver contact for
conduction. Gently installing the sensor is necessary, because accidental vibration can cause the
contact relocate resulting in failure. It is preferable that the resistance be measured when installing
the sensor. Resistance is 8-11
for Model 303 oil-pressure sensor, and 8 for Model 306
water-temperature sensitive plug. If the resistance value is measured to be "0", it means that the
sensor is directly connected, and indicating needle of oil-pressure gauge will go to the end, and the
gauge can possibly be damaged. If the resistance is measured to be " ∞ " or " infinity ", it means
that the sensor is disconnected, and indicating needle of oil-pressure gauge (water temperature
gauge) will not move.
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