| Diagram | Fig. 18 — HEADLAMP, SPEEDOMETER, TACHOMETER · ref 43 |
| Subsystem | electrical |
| Listed in parts books | 1971–1974 |
Screw (99-1193)
A small screw used in the headlamp and instrument cluster assembly, later renumbered 99-1193.
This is a screw that fits into the headlamp and instrument setup on the bike, showing up in the catalog under the figure titles for the headlamp, speedometer, and tachometer, as well as the headlamp and flasher lamp assembly. It's a small fastener rather than a major component, but it's the kind of part that's easy to lose track of when you've got the headlamp shell open on the bench.
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The catalog record shows this number, 54123401, was carried forward under a later factory number, 99-1193. If you're working from an older parts book and it lists 54123401, that's the same physical screw as 99-1193 in the current numbering. The catalog doesn't spell out exact thread size or length, so if you're ordering to match an original screw, have it in hand to compare before you buy.
Given how the figure titles line up, this is most likely a mounting or retaining screw around the headlamp shell or the instrument cluster it houses, but we don't have enough detail in our records to say exactly which fastener position it fills. Call the shop and we'll help confirm fitment before you order.
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