Re: 81 Cb750c Charging System Trouble Shooting

Posted by shinyribs on Jul 22, 2015; 3:33pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/81-Cb750c-Charging-System-Trouble-Shooting-tp4057827p4057831.html

You're seeing 14.4v at the battery directly after a ride? If so, your bike is charging fantastically well. Your battery is just kaput and won't hold it. But just to make sure that it's not over-charging, read voltage at the battery terminals while revving the bike. Make sure it's not putting out more than 15v. If your battery is dead/has low voltage to begin with then the bike is gonna try extra hard to charge. It'll toss full charging power at it. If you see more than 15v while revving the bike you probably have a bad voltage regulator that is allowing it to over-charge, which will heat up and kill a battery. Good thing to check, but you probably just need a battery.

 Pretty bike, man. Tell me more about that good looking seat you got there.