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Another Clean-Out Plug Thread

I have noticed that the application evenness of the bees wax is critical to the amount of water getting past the seals. The seals are shaped in a pressure up orientation, so Yamaha believes that water is being pressed UP towards the plug. I believe that while operating the boat at a constant speed, the boats travel across the water actually “scoops” enough water to create pressure on the clean out plugs. This is the mode that I think you guys are seeing bypass. I spend a good amount of time needing and working the wax before I apply. Last time out, I had very little water in the tubes, and nothing but air came out of the hull drain plug.
 
I picked up some o-rings from MSC. Will see how they work for me and note it here....
Popped the #350 rings in from MSC with a thin coat of "lube tube". Seated fine as noted in other posts. Worked perfectly. Totally dry above the plugs where they would normally be near full. So far so good!
 

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