Thread: jumping Tachometer ??
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Old 08-27-2013, 11:22 AM
427 ISH 427 ISH is offline
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Join Date: May 2011
Location: Roeland Park, KS, KS
Cobra Make, Engine: FFR Mk III With 351W
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Had the same issue with a Speed Hut tach. I needed to instal an inline noise reducer to protect the sending unit from stray current. If the Alternator repair does not fix the tach issue, call the gauge manufacturer. May be a known issue.
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