Checking The Cooling Water Temperature Sensor; Checking The Oil Pressure Switch; Checking The Shift Position Switch - Yamaha F80B Service Manual

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ELEC
2. Connect a computer to the outboard
motor and use the Yamaha Diagnostic
System to display the intake air tempera-
ture.
3. If the ambient temperature and the dis-
played intake air temperature differ by
more than ± 5 °C (± 9 °F), replace the
sensor assembly.
NOTE:
Check the sensor assembly when the engine
is cold.
Checking the cooling water
temperature sensor
1. Place the cooling water temperature sen-
sor in a container of water and slowly
heat the water.
2. Measure the cooling water temperature
sensor resistance. Replace if out of spec-
ification.
Cooling water temperature sensor
resistance:
at 0 °C (32 °F): 5.21–6.37 kΩ
at 80 °C (176 °F): 0.290–0.354 kΩ
8-9
Electrical systems
S6D88160
S69J8230

Checking the oil pressure switch

1. Check the oil pressure switch for continu-
ity. Replace if there is no continuity.
2. Connect the special service tool to the oil
pressure switch.
3. Slowly operate the special service tool.
4. Check the oil pressure switch for no con-
tinuity at the specified pressure. Replace
if there is continuity.
Vacuum/pressure pump gauge set:
90890-06756
Operating pressure:
127.5–166.7 kPa
(1.28–1.67 kgf/cm
18.49–24.17 psi)

Checking the shift position switch

1. Check the shift position switch for conti-
nuity. Replace if there is no continuity.
2
,
a
b
S69J8270
6D93G11