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Great Lakes Bass Fishing Forum

About Fishing Products including Make Your Own => Boats, Outboard Motors, Prop & Trailer Talk => Topic started by: Waterfoul on July 10, 2012, 02:04:42 PM

Title: Tach no longer working....
Post by: Waterfoul on July 10, 2012, 02:04:42 PM
1997 Merc 150 EFI.  Tach simply quit working.  Simple fix would be a new tach... but if it's not the gauge, where does it get the signal from?  The stator?  If so... anyone know what color the wires are?  Is there a way to check the output?
Title: Re: Tach no longer working....
Post by: fasttrack on July 10, 2012, 02:16:56 PM
Ur buddy in Marne would know
Title: Re: Tach no longer working....
Post by: Waterfoul on July 10, 2012, 02:37:10 PM
Ha... grey wire from the voltage regulator says my buddy in Marne.   ;D
Title: Re: Tach no longer working....
Post by: Skulley on July 13, 2012, 08:33:46 AM
You could have some broken magnets under your flywheel. If your tack is inoperative then chances are your starting/accessory battery is not charging either.  Also your voltage regulator could have failed. Regulator is a good place to start if that grey wire isn't grounding out because it's exposed. From the regulator I would the look at the stator and then the flywheel. Good luck.



BD.                               ;D
Title: Re: Tach no longer working....
Post by: SethV on July 13, 2012, 10:29:59 AM
What is your battery voltage while the engine is running?  Is it charging from the motor?
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