I was given an OMC tach that I'm hooking up to my 1973 Merc 50 hp 500. The engine has 12 pulses per rotation (6 positive, 6 negative) and the back of this tach has a pulse selection of 2,3,4,5, or 6 pulses per rev....any idea if this thing will work with 6 selected?<br /><br />Thanks!
