there is a thru-hub exhaust if there are actually exhaust holes around the engine gearcase around the prop shaft. Non thru-hub is stable across the prop hub. Non Thru-hub Exhaust
Should the engine is just not https://gretatqsp219473.ivasdesign.com/51774724/the-smart-trick-of-portable-outboard-motors-that-no-one-is-discussing