Mercury Mariner 8/9.9HP 4-Stroke Factory Service Manual, Page 48Get this manual
Flywheel Removal and Installation Flywheel Removal WARNING
Engine could possibly start when turning flywheel during removal and installationTo prevent this type of accidental engine starting and possible serious injury, always remove spark plug leads from spark plugs1Disconnect spark plug leads from spark plugs
4Remove flywheel using puller (91-83164M)
aFlywheel Puller (91-83164M)
Flywheel Installation
1Place flywheel key into slot2Install flywheel3Hold flywheel from turning using flywheel holder (91-83163M)Apply oil to threads on crankshaft and tighten nut to the specified torqued a