1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 165Get this manual
Flywheel Installation 1Reinstall Flywheel, washer and nut2Torque Flywheel Nut to 120 lbft(162.7 Nm)
5Install Carburetor Gaskets6Reinstall Carburetors as Single-Unit AssemblyNote manifold hose position and connection
3Reinstall Reed Block Housings, Intake Manifolds, and Flywheel Cover BracketINTAKE MANIFOLD GASKET REED BLOCK ASSEMBLY
19094Manifold Hose
7Reconnect main fuel line hose, and fuel enrichment hoseSecure fuel line "a" with sta-strap8Reconnect throttle linkage