How to THOROUGHLY Flush Your Yamaha Outboard

This is the SECOND upload of this video. On the first video, I messed up on the opening music and needed to redo and upload the video.


This video is a first attempt at chemically flushing the entire power head of my F115 Yamaha 4-stroke outboard. My first attempt was with a household descaler called Lyme Away and you can see the results of about 4 to 6 hours of flushing. The second attempt was with an industrial strength descaler called Rydlyme. I have also heard that I could have used another popular product (in kit form) called Salt Away. The outside of your motor can look brand new but deep inside the engine block, there is a cancer slowly growing. This method of flushing ends and reverses the scale buildup that results in overheating.
It is on my todo list to do a thorough flush and change my zincs every 6 months mainly because I go offshore once or twice a week and just the 5 minute fresh water flush when I get home is OBVIOUSLY not enough.


I want to personally thank SeaTow for their quick response when I needed them while coming in from deep sea fishing and my motor over heated and just stopped while running at 4500 RPM's. I hope that I never have to use them again.. but I am secure in knowing that my yearly membership provides me with proof, that I can rely on them when and if trouble comes a calling while out in the boat.