Last week I set out to adjust the ignition timing and gap the points but during my gapping procedure I noticed that there was some pitting on points 2-3. The pitting was significant enough to hinder a proper gapping width. I filed down the peak on the top point but the bottom point had a seriously deep pit. There was nothing I could do to remedy it so I decided to check out how much new points were going to run me. I also figured I might as well get new condensers since I was replacing parts anyway.
But I started to think that instead of buying two new sets of points and a new pair of condensers, plus a dwell meter and a timing light I might as well just get a Dyna-S electronic ignition and save myself the future maintenance.

Currently, there is much debate on the SOHC forums concerning the advantages and disadvantages of the Dyna-S. My opinion is that much of the argument against the Dyna-S has to do with it’s price. The explanation for the dispute against the Dyna-S centers around it’s 20 year old technology sold at the same price it sold for 20 years ago. Honestly, I don’t care how much it costs. For a few more bucks I’d rather have the Dyna-S’s convenience over points and future point maintenance.
I found a great deal at Z1. http://www.z1enterprises.com/detail.aspx?ID=437
Should be here by next weekend. Okay, let’s take out the points plate!

The points plate is held down by three screws. Step 1. Remove screws and throw them away. I have some stainless steal allen bolts to replace them with.

34 years old. I’m not gonna bother putting those back in.

Shiny new allen bolts and washers.

Step 2: remove center bolt.

Step 3: remove washer thingy.


The whole thing will come off, but I only need to take off the points base plate, the advance assembly goes back on.

Pretty clean in there.

The advance assembly. I’ve already read through the Dyna-S installation manual. This little guy will be used with the new electronic ignition, hopefully without any modification.
That’s it. Just have to unhook wires from main wiring harness (under seat) and wait for my part to come in.
Man, its such a blast working on motorcycles.
Hi, I have the Dyna S on my 1975 550F and its great. Easy and clean to work with. Frank
Right on!
Just installed one last night on my ’74 CB550. The instructions could have used with a few drawings, but otherwise the installation went well. Now, all I have to do is adjust the settings and ride.