Re: Tach won\'t go down! Please help
1ast, aahh if your serious, your tach sounds ok to me. the tach will not go down to 0 because it is measuring the RPM (revolutions per minute) of the crankshaft when the engine is running. when engine is at idle 500-700 rpm is ok for a stock engine. when the engine is off there are no rpm,s to measure so 0 is correct.
eagles