Yamaha F25A - Oil Pressure Switch; Engine Temperature Sensor

8-16
–+
ELEC
E
IGNITION CONTROL SYSTEM
PULSER COIL
Refer to “IGNITION SYSTEM”.
OIL PRESSURE SWITCH
1. Check:
● Oil pressure switch continuity
Out of specification → Replace.
Mity Vac:
YB-35956/90890-06756
Oil pressure switch continuity
pressure:
15.5 kPa (1.55 kg/cm
2
,
2.25 psi) and above
No continuity
15.5 kPa (1.55 kg/cm
2
,
2.25 psi) and below
Continuity
ENGINE TEMPERATURE SENSOR
1. Measure:
● Output voltage
(at the specified temperature)
Out of specification → Replace.
Refer to the chart.
-30(-22)
-20(-4)
-10(14)
0(32)
10(50)
20(68)
Temperature (°C) (°F)
0 2 4 6 8 101214161820
Resistance (kΩ)
30(86)
40(104)
50(122)
60(140)
70(158)