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Old 06-01-2017, 07:42 PM   #64
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Join Date: Feb 2007
Location: Woodinville, WA

If the hall sensor is bad the engine won't start, was the engine running without the tach doing anything? That sounds like a wiring problem to me. The tach is driven directly off the ignition coil IIRC, if it's getting a spark then the tach should do something. I suppose a bad tach could cause lack of spark but I've never personally seen that.
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