I asked this last year and could not find anyone that had done it. I am going to try it this year. I wanted a 200cc with lighting coil which was hard enough to find so I decided to just get the electric start engine and add an extra coil. The only make I could find was Hy-spec sourced through Wajax industrial components and the cost was $265.00. I have an extra charging coil from a Honda GX270 which should fit. The only major problem with be the steering knuckle, I will have to cut away some of the bulkhead and reposition it further forward to clear the starter motor. I will post some picture here when I start the project. I can't believe none of the manufacturers have added electric start, especially for the price of these things. I recently bought a 50cc atv (Gio) with suspension, electric start, lights etc... for $400.00 shipped to my door taxes in.