Hi,anybody recommend a good technical book especially for B40 1965 on Have Haynes but not all info in there .
The Rupert Ratio unit single manuals are full of very useful information;
http://www.ratiopublishing.co.uk/The-Rupert-Ratio-Unit-Single-Manual-Volume-1
Thanks for that I had forgotten the name .Have ordered one .
With Haynes and Ratio, can I add that its worth having a parts catalogue to hand which will show you what should be there, even when it isn't! I've found that the Haynes manual is the least helpful.
Not plugging Drags but I fond this useful during my rebuild.... https://www.draganfly.co.uk/index.php/bsa/bsa/b40
Cheers,
Bernie
Get free downloads of parts books and other stuff for unit singles here;
https://www.bsaunitsingles.com/spares.htm