Tach Not Reading Correctly

jdawwggin25

Seaman Apprentice
Joined
Aug 12, 2009
Messages
30
I took my 20' CC with a 1987 yamaha 115 out for the first time this season and the tach wasnt reading correctly. When the engine turned over it would ping out at 7000 and never change. Usually i would think something is improperlly grounded but all the wires seemed to be hooked up correctly. Any advice, could it mean that the tach is done for, couldnt really find anything on how to fix or test it in the manual. Any advice would be great. Thanks.
 
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