Yamaha F40BMHD Wartungshandbuch Seite 468

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ELEC
IGNITION CONTROL SYSTEM
MEASURING THE PULSER COIL
OUTPUT PEAK VOLTAGE
Refer to "CHECKING THE PULSER COIL"
on page 8-14.
CHECKING THE OIL PRESSURE
SWITCH CONTINUITY
Check:
• Oil pressure switch continuity
Out of specification → Replace.
Oil pressure switch continuity pres-
sure
15.5 kPa (1.55 kgf/cm
Measuring steps
(1) Remove the oil pressure switch.
(2) Connect the mity vac as shown.
Mity vac
YB-35956/90890-06756
(3) Slowly operate the mity vac.
(4) Measure the continuity when the speci-
fied pressure is reached.
MEASURING THE ENGINE COOLING
WATER TEMPERATURE SENSOR
RESISTANCE
Measure:
• Engine cooling water temperature
sensor resistance
Out of specification → Replace.
Engine cooling water temperature
sensor resistance
5 °C (41°F): 25 kΩ Ω Ω Ω
20°C (68°F): 12 kΩ Ω Ω Ω
70°C (158°F): 2 kΩ Ω Ω Ω
8-19
E
2
, 2.25 psi)