Thanks, I have 1/8" taps for both the BSP valve adjusters and the NPT experimental breather hole in a valve cap. I was just wanted to confirm that UK and OZ plumbing stores had proper BSP/Metric tapered plugs readily available.
Bruce, be careful buying National Pipe Thread (US) from your local plumbing store for use on your Vincent. NPT is 1 TPI different from BSP - you will wreck your original threads. I've seen and worked-on several US Vincents with this problem - including Series As!
Peter B
Bristol, UK
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