| Diagram | Fig. 3 — CYLINDER BARREL — EXHAUST PIPES — VALVES · ref 4 |
| Subsystem | engine top |
| Listed in parts books | 1971–1972 |
BSA Valve spring — outer
An outer valve spring for a BSA A65 top end, one half of the paired springs that close each valve.
71-2222 is an outer valve spring listed in the cylinder barrel, exhaust pipes, and valves section of the parts book. It's one of the pair of springs that sit over each valve stem, working alongside the inner spring to close the valve after the cam pushes it open.
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The catalog description here just calls it out plainly as an outer valve spring, with no other detail attached. The catalog title turns up on a BSA A65, described as a later type, which lines up with the BSA manufacturer tag on this listing rather than anything Triumph.
If you're rebuilding a head and need to know exactly which years or which A65 variant this spring suits, give the shop a call before you order — our record on this one is thin and we'd rather confirm than guess.
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