Tachometer whacked out

wiretwister

Seaman Apprentice
Joined
Apr 26, 2009
Messages
34
83 Evinrude 115hp. The tach is nuts.....Reads ok for a few then might pop over to 8000 then to 3000 then read ok for a few....
Whats the problem??? Junk Tach??

Thanks
Wire
 

timalabim

Seaman
Joined
Aug 1, 2007
Messages
71
Re: Tachometer whacked out

Could be your rectifier on its way out. I had the same symptom on my 96 112 johnson and soon lost all charging. Rectifier was fried. Look on the Johnson/Evinrude forum for the "small rectifier test". Replaced rectifier this spring and all is well.
 
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