not sure if my '87 90HP 3 cyl Mercury is charging. <br /><br />Voltage measured at rectifier is only 12.8 volts at 2500RPM. 12.5 at idle 800RPM.<br /><br />Because the rectifier output goes directly to the battery the battery acts like a regulator<br />(electrical sponge) and may be keeping the...
thanx to all who replied. Still don't know year unfortunately.<br /><br />site with sn listings did not include my engine (3 cyl 90HP with sn of B153951)<br /><br />interesting site however!<br /><br />guessing it is a early model 87 because that year had some sn's starting with B.<br /><br...
