Yeah; www.wackerengines.com, www.lambertsrc.com, or www.carrprecision.com.

The prop hub for the CDI electronic ignition replaces the heavy magneto flywheel. A sensor is mounted on a large diameter hose clamp that clamps to the front bearing snout of the crankcase, and you can rotate it to set the timing.

I made the parts for my Homelite engine shown in the pics. Just posted them to let you get the idea how it works.

AV8TOR