This condition causes excessive heat on the circuit board and uncontrolled electric current output, which can result in insufficient charging current being provided to the motorcycle battery.

Some regulator/rectifier assemblies were produced with insufficient adhesion between the power module (circuit board) and the rectifier case that contains a heat sink to dissipate heat. Due to insufficient adhesion, heat generated on the power module circuit board can cause the circuit board to deform, and lift of the case.

What to do: Book it in at your next service. There is no deadline and no charge.