Flushing with muffs

[GavinRH]

Ive just bought my first boat which came with a 75hp Mariner 2 stroke outboard - and some muffs for flushing the engine with fresh water after it has been out to sea. <br />Problem is I have no idea how to use them!<br />The boat is berthed in a marina with a fresh water hose next to the jetty. I can see how to connect the hose to the muffs - I guess that the muffs go over the water inlets on the engine (dont know where they are but am guessing I can find them). <br />Once they are on do I just run water through relying on the water pressure or do I turn the engine on?<br />If I have to turn the engine on does it matter that the engine is out of the water in its tilted position?<br />I know this is probably a pretty stupid question but its amazing how many small things you suddenly find out werent on the course when you get your first boat.

 

[WillyBWright]

Re: Flushing with muffs

Welcome to iboats.<br /><br />They fit over the water intakes on the gearcase in front of the propeller. The motor has to be running to flush it. Connect the muffs to a garden hose and supply water any time you are starting or running the motor. The boat has to be out of the water and at an operating trim angle (preferably level).<br /><br />If your boat is kept in the water, it would be advisable to install a battery switch so the power can be easily shut off when it's not in use. Aluminum motors in saltwater dissolve over time and electricity accelerates that process exponentially. If you're not in saltwater, then neither problem is nearly as severe, but the process still is the same.