Mercury Mariner V-250 V-275 Outboard Service Shop Manual 1990, Page 113Get this manual
27Using flywheel holder (91 52344)remove nut from flywheel 29Remove spark advance linkage nut from spa rk advance arm30Remove bolt from throttlespark advance arm and remove arm and throttle cam as an assembly
aFlywheel Holder (91-52344)Fl ywheel
28.lnstall flywheel pu ll er assembly (91-73687 1) in fly wheel and remove flywheel