Aftermarket ignition.
The counterclockwise (retard) and clockwise (advance) when rotating the module is good info, also what I found helpful is if the dot (advance mark on my 1994 EVO is a dot, some earlier and later years are different) is forward in the window view hole (forward of center or dot towards the front wheel of the bike) it is slightly retarded, center is dead bones on, and the dot floating towards the back half of the window view hole is slightly advanced. I don't think it matters all that much, but some might want it set perfect. It helps to know this so you know which way to rotate the module when the dot is slightly off.
I also recall someone saying the window is about 3 degrees, but I could be wrong on that info.
Then there is that plastic view plug. When I use it, I have to find a sweet spot or I wont see a damn thing. Sometimes I can see the dot right away, sometimes I can't and it takes awhile to find the spot where I can actually see the floating dot. Sometimes I have to turn the lights off in the garage and close the door, not a fun thing with the bike running, then there is the chance of getting the engine to hot while searching to find the dot... last time I timed my bike I had to break out the fan. YD
The Best of Harley-Davidson for Lifelong Riders
There were always rumors about them being unbranded 2000i/p units,,who knows.
they ARE identical, and yes..you can reprogram using ( or used to be able to) Dyna's own software.













