1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 69Get this manual
Carburetor Specifications Carburetor number stamped at TOP of carburetor mounting flange
NOTE: Early model engines may have identification stamped on face of air box mounting flangeCarb Number WME-11, 20- WME-14, 21- Location Top Carburetor Top Center Carburetor Bottom Center Carburetor Bottom Carburetor Top Carburetor Top Center Carburetor Bottom Center Carburetor Bottom Carburetor Model HP 100 Main Jet .054 Bowl Vent Jet None