No need for changes on engine housing:

The system is technically capable of running without battery.

• all parts are new
• more light output
• very stable ignition with solid spark
• better starting, better fuel burning
• no trouble anymore with magnunit
• no trouble anymore with govenor and points 

• assembly instructions
• wiring diagram of the system
• wiring of AWO Sport with the system
• parts in the pack (photo)

• dynamo casing with the new system
• closer look at parts on engine
• ignition coil unit

• regulator/rectifier in battery box of sport
• advance unit in lamp (proposal)
• regulator on frame under tank (proposal)