Checking The Thermoswitch - SELVA MARINE Grey Whale 200 EFI Service Manual

4. Remove the engine temperature sensor.
5. Place the engine temperature sensor in a
container of water and slowly heat the
water.
6. Measure the engine temperature sensor
resistance. Replace if out of specifica-
tion.
Engine temperature sensor
resistance:
Black/yellow (B/Y) –
Black/yellow (B/Y)
at 20 °C (68 °F): 54.2–69.0 kΩ
at 100 °C (212 °F): 3.12–3.48 kΩ
7. Install the engine temperature sensor,
and then connect the engine temperature
sensor coupler.

Checking the thermoswitch

1. Disconnect the thermoswitch connectors.
NOTE:
There are 2 thermoswitches: one on the port
side of the power unit and one on the star-
board side.
2. Turn the engine start switch to "ON," and
then measure the input voltage at the
thermoswitch connectors (wiring harness
end). Check the wiring harness if below
specification.
6AL3J11
PORT
STBD
S6AL8500
3. Turn the engine start switch to "OFF."
4. Remove the thermoswitches.
5. Place the thermoswitches in a container
of water and slowly heat the water.
Ignition and ignition control system
P
Thermoswitch input voltage:
Pink (P) – Black (B)
12 V (battery voltage)
P
B
1
B
2
S6AL8510
3
4
5
6
S6AL8520
7
8
9
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