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Does anyone know how to set the three small switches on the back of the Yamaha Multifunction Outboard Tachometer for a 2004 2-stroke 90hp. Is there a guide anywhere. I can't find anything in the manual.
The instructions are on a card that comes with tach, The settings for a 90 are
swtch 1 "up" (2 lead trim sender)
switch 2 "up" ( 6 pole alternator)
switch 3 "down" (2 stroke engine)
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