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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3940
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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Frequency of flushing required pair BF50 4 stroke outboards

Customer Question

frequency of flushing required for a pair BF50 4 stroke outboards in a marina ( 2008 models ) I have the flushing attachment. it works, but is a bit difficult to do. also is there a better way.
concerned owner
viv Deane
Yeppoon queensland. 4703
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Hello, my name is***** you for allowing me to assist you today.
Is the boat left in the water? Or on a rack?
Customer: replied 2 years ago.
left in the water
Expert:  Charles replied 2 years ago.
It is not required for after every time that you operate the engines. it would be great if you could flush them out. There is a zinc anode inside the exhaust plate that will corrode faster than what the block will. As long as you are maintaining the engines properly, water pumps and all zincs yearly, it is ok to only flush them every few trips.
Please let me know if I did not answer your question.