Mercury Mariner 4 and 5HP 4-Stroke Outboards Service Shop Manual 1999, Page 89Get this manual
CARBURETOR
Carburetor Removal and Installation
REMOVAL 1Disconnect fuel supply from engine2Remove the rewind starter3Disconnect the fuel hose and breather hose4Remove the two bolts securing the flame trap and carburetor to the intake manifold5Disconnect the choke cable and throttle linkage from the carburetorRemove carburetorINSTALLATION 1Reconnect the choke cable and throttle linkage2Install the carbu retor as shown3Reinstall the fuel hose and breather hoseFaste the fuel hose with hose clamp