If you use your flushing port often enough, I am sure this will happen to you. For me, it is Mercury Marine outboards, but I woulds suspect all engine manufacturers have this issue from time to time. The check valve got stuck, but when you see something that looks wrong it is easy to panic. Took longer to make the video than to fix the problem. After some searching, what seems to cause the issue is flushing the engine with too much water pressure. Just something to keep in mind if your water hos
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If you use your flushing port often enough, I am sure this will happe…
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