Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 98Get this manual
12) Remove the CDI unit cover13) Disconnect the starter solenoid ground cable [Electric starter type ontyl (P16-91Disconnect the ignition coil ground cable (P16-3)14) Disconnect the regulatorlrectifier connectors, neutral switch 2P connector and fuse case connector and remove each part [Electric starter type only] (P16-61Disconnect the remote control cable connectorl4P connector [Remote control type onlyl (P16-3115) Remove the starter cable (lower side)Open the wire harness clip and remove the starter cable (upper side) from the starter solenoid [Electric starter type onlyl (P16-6116) Disconnect the starter button connectors [Electric starter type onlyl (P15-3)17) Disconnect the emergency stop switch connectors and oil pressure indicator light connectors [Tiller handle type onlyl (P15-4)18) Attach chain to the engine hanger bracket CDI UNIT COVER