Re: 1971 Mercury inline six not charging the cranking battery.
well, I am not familiar with your motor, but you can't quote cost figures till you have assertained what the problem is..<br /><br />do you have a multimeter or voltmeter? first step is to test the voltage at the battery before and after starting the motor, if there is an increase and the voltage is over 12.5 or so, you are probably ok, and the battery is clagged..<br />(Is the battery clagged?) (incidently if you don't have water muffs, or a big drum, don't start it out of water, and even with muffs, don't rev the motor much.)<br /><br />Verify the battery first, then test for voltage while running, once you know the charger isn't working at all, then you can start looking for specifics.<br /><br />rgds<br /><br />Franki
