Alternator/electronic ignition (CDI) with advance control for 2 stroke offroad mootorcycles such as

- KTM 125 engines  
- Puch 125-175
- Rotax (Aprilia) 123, 126, 127 engines
- Cagiva WMX125
- and similar
    
Replaces stock ignition system (including ignition coil and regulator/rectifier).
There is no need for changes on engine casing.
The system is technically capable to run without battery.