Author Topic: Tach #947448 range setting  (Read 523 times)

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Shady Grady 20

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Tach #947448 range setting
« on: January 09, 2012, 10:38:10 PM »
I have a tach # 947448 &, need to know what are the dip switch settings for my 99 mercury optimax 135 hp outboard???

Ken

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Re: Tach #947448 range setting
« Reply #1 on: January 10, 2012, 07:58:58 AM »
Hi Shady Grady,

Switch #4 open all others closed.

Thanks,
Ken