pulse generator

I'm rewiring my 1980 cb750c and I'm wondering if the pulse generator has polarity going to the spark units. The wire colors coming out of the pulse generator are black and green (which aren't used in the new harness. I believe they are for the neutral light.) then 2 yellow and 2 blue. The...

My first post here, I have a 1980 cb750f, just bought it a little bit ago, has a sidecar on it. My pulse generator was bad so I put a dyna 2000 on it, everything is running but I need to find the "tach-input wire" on the bike. On the attached picture the black wire goes to the engine but I...