Honda BF35A-BF45A Outboard Motors Shop Manual., Page 213Get this manual
ELECTRICAL SYSTEM 1Electronic advance CDI system
The BF35A 45A is equipped with the electronic advance maintenance free CD1 system which is excellent sparking performance and has no mechanical contact-
Basic circuit diagram (for one cylinder)
111 ENGINE STOP SWITCH
11 SCR (THYRISTER)
[21 SPARK PLUG
1 PULSER