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View Full Version : Tachometer Problem Mercury 150 EFI



robert9999
07-07-2003, 08:22 AM
" I'm having a tach problem. The tach wasn't working so I changed the connection (grey wire) from the first regulator too the second one. Still no tach, so I assumed the tach was bad and replaced it. Still not working. It bounces around sometimes and appears to be working momentarily at others. Any help would be greatly appreciated.

Thanks,
Robert "