Mercury Mariner Outboard 225 3 Litre Service Manual 1994, Page 102Get this manual
Removing Carburetor(s) from Engine 1Remove lOP cowlingPlace an identifying mark on each carburetor before removal as each carburetor must be reinstalled in same location from which removedNOTE: As each carburetor is removed from intake manifold, their respective fuel enrichment hose should be disconnectedRemove fuel hose and fuel enrichment valve hose from carburetors
Remove air box cover from engineRemove throttle linkage from throttle levers as shownRemove oil pump link rod from throttle lever