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25 SC Tachometer problems

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Old 08-17-2015, 08:16 AM   #1
 
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Default 25 SC Tachometer problems

I have a problem with my tachometer, it suddenly shows 1000 rpm to much. at top speed it goes up to 6100 rpm. ( usually 5100-5200 rpm)

The motor is running fine, this proplem comes and goes. suddenly it can dropp to normal when driving.

The motor and boat is a 2008-model with Fariamade instruments.
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  • Old 08-17-2015, 08:01 PM   #2

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    Default Re: 25 SC Tachometer problems

    This question gets asked quite often... check the wiring connections to ensure they are clean. Then access the back-side of the tach where you will see a small wheel marked 2-4-6-8. Give the wheel a spin a few times then reset it to 8. If that fails then it's time to return the tach to Faria since they have a lifetime warranty.
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    Old 08-18-2015, 06:43 AM   #3
     
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    Default Re: 25 SC Tachometer problems

    Thanks, I gave the wheel a spin and set i at the same place.. now the tach works great
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    Old 12-03-2019, 02:49 AM   #4

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    Default Re: 25 SC Tachometer problems

    I have a 2000 25 foot(don’t know model, just bought it) & tach & compass don’t work. Any ideas? Thanks
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    Old 12-03-2019, 06:56 PM   #5

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    Default Re: 25 SC Tachometer problems

    Quote:
    Originally Posted by cew388 View Post
    I have a 2000 25 foot(don’t know model, just bought it) & tach & compass don’t work. Any ideas? Thanks
    Read post# 2. And if you have a "2000 25 foot" boat.... you do not have an SC25. Your boat info says you have a "Talari' and yet your other post indicates you have a Z252. If might help if you knew what boat you actually have...

    Last edited by mikeyt; 03-01-2020 at 10:57 PM.
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    Old 02-29-2020, 10:30 PM   #6

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    Default Re: 25 SC Tachometer problems

    Can anyone tell the horsepower 2000 merc engine OL621170? Engine model is Mers 7.4L MPI Bill. Thanks
    c
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