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I get 12 volts to brown wire (disconnected) going to start relay. When connected, only 4 volts at soldered connection to relay. Relay buzzes, but starter won't turn. Relay passes continuity tests. Neutral safety switch checks out. Wiring is all good. Put 12 volts across starter and it cranks. Is there any thing besides relay that can be bad?
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Load test battery and battery cables to engine, check all battery cable connections are clean and tight, check all ground wire connections. -
New Battery and one year old battery. Both fully charged. Replaced wires, soldered terminal ends. all are clean and tight. Switch in system (1-2-all-off). Same results with switch in all 3 on positions and with switch removed from equation. Will perform load test Tuesday as boat is not where I am, at present.
Wouldn't that be a load test on the relay with 12+ volts to the lead (not connected) and 4 volts to the same lead connected and switch turned to start position? Trim relays work and they are off the same battery leads.Comment
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Load test will verify it is not losing voltage to relay causing the low readings.Comment
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Yamaha battery lead insulation had failed, swelling to fill the inside space of the conduit from the transom to the motor (motor on a bracket). Both leads were bad. No evidence of any corrosion inside boat or motor cowling!
Had to remove flexible conduit between the two by "unscrewing it" off the wires, control cables, oil and fuel lines. Replaced battery leads and fuel line (outer covering dissolved). Ran new #4 wire which does not fit the grommet into the motor. Plan to "trim" inside of grommet to accomodate the new wires and seal with silicone or liquid rubber. Have no idea how salt water go into conduit, but will reposition it so center is higher than ends and seal ends if conduit. Maybe I will get more than 7 years out of new wires!
Thanks for your support.Comment
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