'97 88 special. newer rectifier, tach works great but doesnt seem to be charging like it did a couple of weeks ago. Unregulated system used to charge to 16+ volts and I would turn on accessories to bring it down while running. Sunday while out I noticed max volts I could get was 12.8 while running. thought it was the gauge but checked digital voltage input on Lowrance gps and it was 12.4-12.5 at idle and max 12.8 while running 4800 rpm's. Did notice that gauge would bounce up and down like a loose connection while running in heavy chop. Checked all connections and all good. I couldn't duplicate the loose connection by wiggling any wires(motor running). I'll check output directly from terminals at rectifier later but any thoughts?
