In checking out the old girl components that might effect mileage / performance, etc. I found this under the points cover.





And the coil is also without a name, just the letters MM28391 on the side.
Tried Google - got not much.

Any help / advise would be appreciated.

 

If I had to guess, which I must as I've not seen that one, it is a hall effect triggered, single fire, electronic ignition. Probably using the mechanical advance mechanism, which is gonna be a problem if not receiving regular attention.
All I gots

 

http://vulcanworks.net/store/Electro...rive-Cams.html


http://vulcanworks.fileburst.com/ins...ition_inst.pdf

 

Nice catch on that Tom.

 

So I take it that this unit replaces the points and condenser while maintaing the weights?

 

Yes looks like an updated version of the dyna S with a built-in timing light.

 

Updated??
Chiwanese maybe.
What makes you say Updated?

 

Are you and I going to split hairs on everything I post ? Seriously.......

 

Not at all...just wondered what would be updated about it...