I am trying to help my brother get his engine back together and installed. Long story short, he purchased a 19 ft. Chaparral with the Yamaha stern drive. Did not check boat out thoroughly and he got burnt bad! Block was cracked. We pulled engine,found another block,and had everything rebuilt. Got engine back from machine shop and we are getting it ready to put back in. I took pics. To assist in remembering where everything goes. But I didn't get any shots of the rear. There is a sensor that goes near the dist. At the back edge of the intake. We can't figure how it goes. What we need is some pics. Of a similar setup. It is a 93 Yamaha , not the YEMS. Can anyone advise where I could go to view some pics. Of this same setup ? Thanks!