Make sure you are using the correct bulbs:
headlight: 6 Volt 6 Watt 1 Amp
taillight: 14 Volt AR (7 Watt)
To test if the lighting coil is working:
- the lighting power exits the stator /magneto via this power feed screw:
- You'll need two lengths of wire, stripped on the ends...1 6 Volt bulb...and some electrical tape
- Using the tape, attach the end of one wire to the threaded portion of the bulb, and the other end of the wire to the power feed screw.
Attach one end of the second wire to the tip of the bulb, and the other end of the wire to the crankcase or a fuel pump screw.
- suspend the bulb in mid-air so it doesn't touch metal.
Start the engine. The bulb should illuminate, which means that the coil is working.
There is no ground wire for the taillight. The frame and frame bolts act as the ground wire from the taillight to the engine...there is no wire...so all of the bolts and bolt holes must be free of rust and paint to allow the ground to travel through them.