Mercruiser 4.3 mpi tacho problem

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,211
do you have the tach switches set correctly?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,211
your tach should have a setup switch so you can match it to the signal coming in. all the tachs in boats have them.
 
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