Charging problems can drive you up the wall. Adding to this is the fact that there seems to be no easy way for us simpleton’s to verify that the Regulator/Rectifier is good or faulty. This primer goes along that line, as does the Yamaha Service Manual. The Service Manual leaves some to be desired and I hope I’ve explained it a bit further so you can successfully troubleshoot your charging circuit.
Read the full Troubleshooting the Road Star Charging System article.
