Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Is the output from the charging coil putting out 12 + volts DC? Or is it AC? If DC. it needs nothing else. If it is AC, it has to have a diode, to change the voltage fro AC to DC output. Same as the older Briggs engines. They just use a diode to change the stator voltage from AC to Dc.