Apparatuses and methods for servicing lubrication in a lower gearcase of an outboard marine engine

An outboard marine engine comprising:

• an internal combustion engine;
• a lower gearcase;
• a set of gears disposed in the lower gearcase, the set of gears being configured to transfer power from the internal combustion engine to drive a propulsor to generate a thrust on the outboard marine engine;
• a dipstick that extends into the lower gearcase, wherein the dipstick is removable from the lower gearcase and configured to indicate a level of lubrication in the lower gearcase;
• a dipstick opening on the lower gearcase, wherein the dipstick extends through the dipstick opening;
• a dipstick conduit connected to the dipstick opening, wherein the dipstick extends into the dipstick conduit;
• a lubrication fill opening on the lower gearcase;
• a lubrication fill conduit connected to the lubrication fill opening and disposed at least partially outside of the lower gearcase;
• and
• an adapter plate disposed between the lower gearcase and the internal combustion engine, wherein the dipstick extends through the adapter plate and wherein the dipstick and lubrication fill conduit are accessible on an opposite side of the adapter plate with respect to the lower gearcase.