I got ahold of a nice timing light with the tach and dwell meter on the back.....so how do I use this on a rotary. Ive actually had this question for a long time but I didnt have the light so I didnt ask.

I need to know how to use this on both the 13b and the 12a. Any help would be great.

Hook up the clamp style inductive pickup to the front rotor leading spark plug, ground the negative terminal/clamp, put the postive clamp/terminal on the + battery terminal, point and click at the pulley..

whats the tach and dwell for, v8's?

ay is that on both 12a and 13b?

12a and 13b time the same. tach should be 4clyinder. dwell is for points

Thats what I thought. I have the electronic dizz.

Thanks guys.

What about the trailing timing? The adjustment on the side of the distributor? Do I do the same with the #1 trailing??

one of the vacuum advances is on slotted holes, that adjusts the trailing timing. put the light on #1 trailing



mike