| Diagram | Fig. 7 — TIMING COVER AND CONTACT BREAKER · ref 24 |
| Subsystem | engine bottom |
| Listed in parts books | 1971 |
CONTACT BREAKER 7CA (99-1233)
Lucas 7CA contact breaker (points) assembly for the timing cover, part number 47640 / 99-1233.
This is the Lucas 7CA contact breaker assembly, part number 47640, also carried in the books under 99-1233. It's the points setup that lives under the timing cover on the engine, and it's the piece that makes and breaks the ignition circuit to fire the spark at the right moment. If your timing cover access is worn or fussy, this is the part you're chasing down when the bike starts missing or won't hold a tune.
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The catalog only shows this one appearing in a single listing tied to 1971, under the TIMING COVER AND CONTACT BREAKER heading, so we don't have a broader spread of years to point to. If you're not sure whether the 7CA is what's fitted on your engine versus an earlier or later points type, pull the timing cover and have a look, or give us a call before you order.
Worth keeping a spare set of points on hand since this is a wear item that gets adjusted and eventually replaced as the rubbing block wears down and the gap changes over time. When you're in there, it's also a good moment to check the condenser and the advance mechanism while everything's already exposed.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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