Single Exhaust

Single Exhaust

Force motors made after 1994 are not of this type by definition, even though those motors only have one exhaust outlet. Force / US Marine motors made before 1994 will require you to determine if you have a “single” or “dual” exhaust unit when shopping for a prop. The majority of outboard motors vent their exhaust gas out through the center hub of the propeller. Other motor designs feature an exhaust port which extends back past the propeller. “Single exhaust” Force outboards utilize this separate, non-thru-propeller exhaust method.