I'm putting EI on this Stihl. This is a 24cc that i thought would make a great motor. Very light, Dual rings, Large ports. Cut the center of the flywheel which gives me the tapered and "Keyed" section for a solid base for prop hub and a base for the adjustable timing collar. I tapered a peice of 1/2" Ali to match the crank taper-chucked that in the Lathe and trued it up. Also made the prop hub.
Added the pix with the adjustable collar for timing.