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help my tachs not working #4656588 03/26/10 01:18 AM
Joined: Feb 2009
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cannonball Offline OP
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ok guys leaving tommrrow to fish with freinds my tach has never worked on the boat ive had it for about a year. i bought a new one tonite wired it up it will go to 800 when the motors cranking but then back to 0 once it starts i have the dial set to 6p. 98 mercury xr6 teleflex tach i cant find anything online so need alittle help with this one its gonna bug me knowing i just threw $80 out the window.


Re: help my tachs not working [Re: cannonball] #4656688 03/26/10 01:38 AM
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Tony Maynard Offline
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Not sure about mercury but I know on johnson-evinrude its a tell tale sign rectifier is bad had a few bad ones in past replaced them and tach started working.I am sure a merc guru will jump in soon.

Re: help my tachs not working [Re: Tony Maynard] #4657158 03/26/10 02:59 AM
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cannonball Offline OP
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thats what i thought i could be but the charging system is working great and so is everything else im stumped on this one i guess i still wont run it wide open till i get it figured out


Re: help my tachs not working [Re: cannonball] #4659227 03/26/10 04:25 PM
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OldFrog Offline
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Isnt there some kind of tiny switch on the back of the tach or something?
I seem to recall something you had to set on some tachs for certain engines. Then again...I could be mistaken.


Now, Donald...please pick John Bolton for your running mate.
Re: help my tachs not working [Re: OldFrog] #4659413 03/26/10 05:13 PM
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Stump jumper Online Content
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Rectifier


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: help my tachs not working [Re: Stump jumper] #4660370 03/26/10 08:41 PM
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cannonball Offline OP
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thanks for the help it looks like one of the rectifiers is starting to go burnt conection


Re: help my tachs not working [Re: cannonball] #4661812 03/27/10 02:33 AM
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MATTSUEY Offline
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if the rectifier goes,the stator isn't far behind, better get that checked out,i just had to replace both

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