kerryd15 Posted August 29, 2012 Share Posted August 29, 2012 What is a good tach that I could hook up to a 97 50 merc? Will the spark plug wire ones work? Will they be accurate enough or do they bounce all over with a 2 stroke that doesn't run as smooth as a 4 stroke. Looking for one to set idle speed. Thanks Quote Link to comment Share on other sites More sharing options...
boatfixer Posted August 30, 2012 Share Posted August 30, 2012 Electronic Specialties. I have one built into my timing light but I know a couple guys who have the ES and they work fine. Quote Link to comment Share on other sites More sharing options...
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