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Recent content by Yznash

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    Yamaha F90 2008 Water in cylinder 3

    I’ve recently picked up my first boat with an Yamaha F90 (F90TLR), and I’ve found water getting into one of the cylinders. I first noticed that one spark plug looked pretty rough compared with the others, and when I looked down the cylinder there were white/salt-looking deposits on the piston...
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