As I posted earlier Dennis:
"The only negative for an old man like me is, like most new
electronic test equipment, it is capable of giving me way
more information than I can handle. Because of all the
different modes and information that is available and the fact
that I don't use it every other day, I have to get the
instructions out every time I pull it out of the tool box."
But....the basic timing light is pretty simple. Induction
pickup around #1 plug wire (Arrow to plug), green wire clipped
to distributor for rpm/dwell reading and red/black power
leads to a battery. Make sure it's in the 4-cycle mode and 6cyl.
A 12v supply might give you a little stronger strobe light.
So if you do have a spare 12v, set it next to the fender and
power it off of that as Jerry pointed out earlier. But, it
will fire off of the 6v also. I've not really found a need for
the advance settings myself and generally setting the correct
point gap put's the dwell in the ball park. Only use I'd have
for that is to double check my gap or to check for any wear on
the cam, which I've never seen in any distributor yet.
This is probably the best way to introduce you to your new
timing light. Only takes a few minutes of your time:
https://www.youtube.com/watch?v=ViDA9IrkTtIdg
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