- Joined
- Jul 6, 2015
- Messages
- 141
- Location
- Germany
I have a flywheel 101 801 05 A1 - which powers the lighting coils too. The SEM is built as "two layer system". The first one provides the charging coils for the CDI/coil and the pick-up coil (split: 1 coil for pick-up and another 4 in opposite). The second layer comes with "lighting coils" (360° around). Therefore the flywheel requires two magnetic "rings" as well. The outer one for the lighting coils (360° filled with magnets), the inner one with magnets and metal strip for pick-up and charging coils.
I never had an FC flywheel but I assume it's only half as thick as the FE one. Maybe somebody who has both systems does know better.