It’s inside the left cover on the engine . Controls ignition spark. And advance. Mine was bad. I only had Spark on 2-3 and not 1-4. There is also specs in the service manual online .
Pulse generator under left side cover. There are no new ones available. Have to source a used one. About $120-160. I checked everything switched coils and TI modules.
I have swapped out the coils. I can fire both coils when hooked up to 2&3.
I can swap both spark ignitors TI . I have one, extra they all work on 2&3 cylinder side.
I can only fire the 2&3 cylinder from the pulsar.
Is there any other test i can do to rule out or confirm the 1&4 pickup is bad...