I have an extra coil pack sitting around with a piece of spark plug wire stuck up in it. That way I have my plug wire to hook my light up to. What you can try is to hook it up to the negative cable off of coil pack 1. Also, some engines have this, and some engines don't. There is an inductive timing loop in the back that you can attach the pickup to. But like I said, not all engines seem to have it.
But the engine needs to be running to have the timing light work. My suggestion is to pull the CAS out and go through the process of lining it back up.
http://www.store.yahoo.com/pha....html
there's the how to on resetting the CAS