If your outboard doesn't have a built-in hose link, which can be widespread for older outboards, you have got to use one thing commonly generally known as "earmuffs" or an outboard motor flusher. Gearcase & push Parts: https://jasperoubq571731.livebloggs.com/38453462/the-smart-trick-of-affordable-yamaha-outboard-motors-that-nobody-is-discussing