A10 rocker cover banjo oil feed union bolts

[Trev]

Can anyone tell me about the rocker union bolts? (65-137) the BSA spareslist shows quantity 2, however, I believe that there should be two different bolts (65-137 & 65-138) one has a larger hole than the other. 65-138 does not appear it the parts list is this an error? If the two bolts are indeed different which way round are they supposed to be fitted?

[JulianS]

The twins had 2 the same 65 317.

65 318 was the one with larger feed hole which went on the exhaust rocker of the Gold Star single.

[Trev]

Thanks for that Julien.