Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 200Get this manual
17OPERATION- HONDA
BF20A-25A
1ELECTRICAL SYSTEM
1ELECTRICAL SYSTEM
- 1Electronic advance CDI system
The BF25A is equipped with the electronic advance maintenance free CDI system which is excellent in sparking performance and has no mechanical contacts
circuit diagram (for one cylinder)