Old ,used and Grubby   .

Norton twin workshop manual.

Once owned by Gus Kuhn motorcycles Ltd,

Clapham Road ,.

Covers lightweight  twins,Jubilee,Navigator,Electra.

Heavyweight twins,88,99,650ss,750 Atlas,

750 G15CS ,

Well used and dirty but still usable 

Plus Norton lubrication chart .

See photos