At best the stock hour meter is based on the lousy Faria gauge tach/hr meter. When my tach failed I was only guessing at run time. I found a solution in a basic 2003 version of a Merc Smartcraft gauge detailed in this link: ((LINK)) Look for the images and solution details in my update around Feb 10th. The gauge works directly from the on-board engine computer and has a host of data including accurate engine hours/GPH/RPM/trim pos/temp/wtr pump pres/ etc.. Super easy upgrade once you get the parts.
I found it NIB on ebay for about $150 and the cable was $50. Call Merc with your engine number to get the right cable part number for your application. Look for the merc gauge gurus name in the other post/link.
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I found it NIB on ebay for about $150 and the cable was $50. Call Merc with your engine number to get the right cable part number for your application. Look for the merc gauge gurus name in the other post/link.
Hope that helps, Mike