| Diagram | Fig. 16 — ELECTRICAL EQUIPMENT · ref 11 |
| Listed in parts books | 1968–1970 |
Dip switch (31620)
Handlebar dip switch for the headlamp high/low beam circuit, cataloged as 99-0556 (also listed as 31620).
This is the dip switch listed in the catalog as 99-0556, showing up under electrical equipment and in the ignition capacitor and T100C headlamp figure. It's the handlebar-mounted switch that lets the rider flip the headlamp beam between high and low, wired into the lighting circuit alongside the rest of the switchgear.
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The catalog cross-references this part under the number 31620 as well, so if you're working from an older parts book you may see it listed that way. Our record ties it to catalog entries from 1968 through 1970, but we don't have more detail beyond that on exact model fitment, so check what's on your bars before ordering.
If you're replacing one of these, take a look at the condition of the switch housing and the wiring pigtail while you're in there — a lot of these get brittle or corroded with age even when the switch itself still clicks over fine.
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