If your old moped or motorcycle there is a warning light that tells the driver about turning on lights, it is not necessary to open the harness wiring and to connect additional warning light. Much easier to fix the front headlight on a thin needle color faceted bead or button. When you turn on the headlights, the bead will be pale as signal light.
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IF BROKEN NEEDLE
For pumping nipple balls often use Bicycle pump with a special needle. But it does not matter if it broke or its just not there at hand: with this work well covered by a normal Bicycle...
TO NOT UNSCREW THE SCREW
To nut the connections didn't loosen during operation of the device, usually put the second (jam nut) or enclose the washer Grover. If such is not at hand or you need to fix the little...