| Diagram | Fig. 11 — CLUTCH AND PRIMARY CHAINCASE · ref 8 |
| Subsystem | primary |
| Listed in parts books | 1970 |
BSA Screw, oil level and drain
Oil level and drain screw for a primary chaincase, used on both the level-check and drain points.
This is a screw used for the oil level and drain point on a primary chaincase, listed in the catalog under the clutch and primary chaincase and clutch and primary cover figures. It's a small fastener but an important one — this is the screw that seals the check point where you verify oil level in the primary case and drain it out when it's time for a change.
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The manufacturer tag on this one points to BSA, and we don't have anything in our records tying it to a specific model or year beyond the single catalog year on file. If you're trying to match this up to a particular primary case, give us a call and we'll help confirm fitment before you order.
Because it doubles as both the level check and the drain, a stripped or leaking one of these is an easy way to lose primary chaincase oil without noticing right away. Worth a look any time you're in there for a chain adjustment or clutch service.
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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