1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 135Get this manual
4Install puller on flywheel with flat side of puller "up The shoulder screws should be completely installed in flywheelTighten center pressing screw while holding puller body with Handle Part No307638INotel The flywheel may not "pop" from the taper with only the force of the pullerIn such case, after applying tension with the pressing screw, pry up on the flywheel rim with large screwdriver, and at the same time rap the pressing screw with large brass hammer Wear protective safety glasses before striking metal object with hammer to prevent accidental injury to eyes