Blue, I hope I'm not over simplifying stuff. Not sure about the Yamaha but the cables are about as common as spark plugs.
Our local boat places, hardware stores even Bass Pro (online) carries them.
Usually we get Teleflex stuff, they have a 3300 series (universal) made for Yamaha and others. See if the ends are the same as yours.
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'75 Cuddy with '00 Johnson Ocean Pro 150 horse
Benny
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