CLYMER Mercury Outboard Shop Manual, B721, 3.5 to 40 HP, 1972 - 1989 (352 pages) used
(Full Paperback Manual - not a PDF) (available October 1st thru March 27th)
CLYMER Mercury Outboard Shop Manual, B722, 3 to 275 HP, 1990 - 1993 (619 pages) used