No Start, No Spark, 5.7 L 1995 Bravo

[rocklydockly]

I am in a no start, no spark situation. I have a '95 Rinker with a 5.7 L Bravo. ENGINE SER. # OF287508. First step on troubleshooting flow from mercruiser manual is to check if gray tach wire is grounded. It is. I understand I can cut it and it should fix my problem. How do I troubleshoot the fact that my gray sending wire is grounded out? Does it mean the tach is bad and simply needs replaced? What are the likely causes?

 

[thumpar]

Just disconnect it from the coil and try it. You don't need to cut it.