| Diagram | Fig. 8 — TIMING COVER AND CONTACT BREAKER · ref 23 |
| Subsystem | engine bottom |
| Listed in parts books | 1966–1967 |
Spring
An auto-advance spring for the timing cover and contact breaker assembly, later superseded by part 54417992.
This is a spring listed in the timing cover and contact breaker figure, part number 54415641. In that assembly it lives among the ignition timing components at the front of the engine, under the timing cover. The catalog title from another record ties it to auto-advance springs, the kind used with the automatic timing mechanism that adjusts ignition advance as the engine speeds up.
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The catalog record shows this number was later superseded by 54417992, so if you're chasing this part for a bike built after this one was discontinued, that's the number to look for on the newer stock. Appearances for this part run from 1966 to 1967 in our records.
If you're not sure whether your bike takes this version or the later 54417992, give the shop a call with what's currently on your points assembly and we can sort out which one you need.
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