Checking The Cooling Water Temperature Sensor; Checking The Shift Position Switch; Checking The Neutral Switch (Tiller Handle Model); Checking The Main And Fuel Pump Relay (Main Control) - Yamaha F50F Service Manual

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4. Check the switch for no continuity at the
specified pressure. Replace if there is
continuity.
Vacuum/pressure pump gauge set:
90890-06756
Specified oil pressure:
29.4–58.8 kPa
(0.29–0.59 kgf/cm
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:
Black/yellow (B/Y) – Black (B)
at 20 °C (68 °F): 2.439 kΩ
at 60 °C (140 °F): 0.589 kΩ
at 100 °C (212 °F): 0.193 kΩ

Checking the shift position switch

1. Check the shift position switch for conti-
nuity. Replace if there is no continuity.
8-11
Electrical systems
2
, 4.26–8.53 psi)
S69J8240
Switch
Blue/green
position
Free a
Push b
Checking the neutral switch (tiller
handle model)
1. Check the neutral switch for continuity.
Replace if there is no continuity.
Switch
position
Brown (Br)
Free a
Push b
Checking the main and fuel pump
relay (main control)
1. Remove the main and fuel pump relay
1.
a
b
S69J8270
Lead color
Black (B)
(L/G)
Lead color
Brown (Br)
6C13G11