Join Date: Feb 2010
Location: Narragansett Bay
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Re: Yamaha outboard no water through tell tail
Typically 90w lower gear unit oil. if you look on the side of the leg, just above the prop, you should see two screws. You open the top to allow air to enter as it drains from the bottom. Then you refill by pumping oil into the bottom until you see it at the top. The pump fits onto any 1qt oil container and costs about 10 dollars.
Again, I'm sure there are YouTube vids to see someone else do it.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.