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3-22
NOTE
:
The relay controls the ground side of the motor circuit.
TESTING THE RELAY
Symptom: The relay clicks, but the motor
does not run or turns slowly.
Most common causes: A faulty relay, battery or damaged wire.
Measure the voltage at the negative
input post (black 10-gauge wire).
The voltage should match the battery voltage (same
as the voltmeter reading on the back of the boat).
If the voltage is good, measure the voltage at the negative
output post (black 10-gauge wire), with the motor switch in the
“ON” position. The voltage should match the battery voltage
(same as the voltmeter reading on the back of the boat).
A quick ohm meter check across the two
small posts should verify the activation
windings - values should be 67-71 ohms.
Symptom: The relay does not click
and the motor does not run.
Most common causes: A faulty relay or solid-state switch.
Check the power to the relay input post (black
10-gauge wire). The voltage should match the battery
voltage (same as the voltmeter reading on the back
of the boat). Check the voltage at the relay activation
circuit (white, 18-gauge wire (+) act. circuit).
The voltage should match the battery voltage (same
as the voltmeter reading on the back of the boat).
If the activation circuit is veri
fi
ed and the power side (18-
gauge white wire (+) act. circuit ) is veri
fi
ed, then jumper
the yellow wire side directly ( (-) act. circuit on relay), to
the main motor ground post. The relay should function.
Positive po
st
Positiv
e inpu
t
Negative post
Negative input
Negative output
(+) A
ct. c
ircu
it
(-) A
ct. cir
cuit
Nega
tive pos
t
