Mercury 1.0L class Overheating/Guardian mode fix

Welcome back, lets get right into it,

These modern 4 stroke 40/50/60 HP #mercury engines have a huge design flaw which is not widely acknowledged or talked about. They lack inlet screen filters. This allows for a mass intake of weeds, mats, wood, and just any other fine debris and garbage that is floating at the surface of the water which can get stuck inside your cooling passages. This lowers your water pressure to the powerhead and triggers #guardian mode during higher RPM's due to a pending overheat condition which ultimately shuts you down to idle. The issue left uncorrected for too long can result in a blown head gasket at the powerhead, or worse.

This video strays away from the speed tests and fun on the water and is meant to provide some insight and a cheap DIY home fix to the issue to get your cooling passages clear and get your outboard up and running again without having to drop your boat to a dealer for warranty and waiting FOREVER for service or paying massive amounts of money to fix the issue outside of warranty. It's proactive boat ownership which is equally as important as the fun you like to have out on the water.

Feel free to ask any questions you deem fit for the topic. I monitor and answer all questions and comments posted as honestly and truthfully as I can so please ask away if something was not covered in this video.

Lets get you out there!

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