Brian, I tried the smack in the face, didn't seem to do anything, so did a few things, and when I went to shut it off, I turned the key switch off and pulled the stop, all of a sudden the tach jumped. I pushed in the stop and turned on the key switch back on and tach went back to zero. I tried to recreate the senairo several times, and got it to jump again but it won't stay on. It might be in the key switch? or is there a electrical component in the stop cable somewhere? I haven't looked yet. I played with the key switch in all positions and half way in between to no avail. The Oil pressure registers at the upper limit, and the voltage is at 14.7 after starting they both worked before the slight caressing with the hand on the instrument panel.