Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 327Get this manual
LlFrING OUTBOARD
IMPORTANT: For dual outboard counter rotation Installations, the lefthand rotation outboard is generally placed on the port side of boat transom Apply decal (supplied with left hand rotation outboard) onto bottom cowl (rear) of righthand rotation outboard Match decal placement with lefthand rotation outboard
Verify lifting ring is threaded on crankshaft minimum of turns and that hoist has maximum lift capacity over 500 Ibs(227 kg) BEFORE lifting outboard,Lift off flywheel cover and remove plastic cap from center of flywheel