The BSA Workshop > Twins

Oil pipes on OIF 650 1971-72


A10 JWO:
What internal size are the rubber oil and breather pipes. I assume they are all the same size. I intend to buy direct from a pipe supplier instead of buying by part numbers, thanks.

May depend on the model, but my A65L uses 1/4" bore.
I bought mine from here:

    Draganfly list them as 5/16" and they are not too expensive from them:

Strangely the oil feed pipe at the base of the engine has the return O/D 3/8", the flow 5/16" O/D and the rocker feed 3/16".

Best wishes...

A10 JWO:
Thanks lads another part of the puzzle.


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