I just finished scanning about 130 pages of the J.B. Nicholson book, Modern Motorcycle Mechanics, 2nd Edition (1945). It covers JD, VL, 45 & EL/UL Harleys and Chief & Scout Indians, and I made a CD.
It's an "extract" only, of all his "American Motorcycles" (Harley & Indian) data and processes from the book that also covers a wide range of Brit bikes (about 130 pages of 560 total ppg). Costs me about $2 to mail, U.S.
PM me your name and mailing address and you'll have one. Donations accepted.
--Gerry Lyons, Winter Garden, Fla.