you've got a non thru-hub exhaust if there are NO exhaust holes about the engine gearcase round the prop shaft. Prop Splines
Sneezing and popping Appears. When there’s an excessive amount of air rather than https://sidneyysud998605.thechapblog.com/30064101/the-smart-trick-of-outboard-motors-near-me-that-nobody-is-discussing