Honda BF35A-BF45A Outboard Motors Shop Manual., Page 331Get this manual
5) Connect the 12V battery positive terminal to the Brownlwhite terminal and negative to the Blacklgreen terminal for about five minutesA gentle puff of air should not pass through111 BLACK1 GREEN (NEGATIVE)
BROWN WHITE (POSITIVE)
Note that inspection with the battery connected must be made quicklyThe SE thermal valve heater becomes very hot when the battery is connectedTake care not to touch it