Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 385Get this manual
0 ELECTRICAL SYSTEM Check the wire harness for proper connectionCheck the battery connection for correctnessMake sure that the battery is installed securelyMake sure that the meters and switches are connected correctlyTILT MECHANISM Power trimhilt type: Check whether the outboard motor tilts up and down smoothly by operating the power trimltilt switchCheck for abnormal motor sound during tilting updown the outboard motorTurn the steering wheel right and left with the outboard motor tilted up and check the cables and harnesses for interferenceTilt up the outboard motor and check whether the power tilt oil level is at or within the specified rangeTilt up the outboard motor fully and check whether the tilt stopper functionsGas-assisted tilt type: Operate the lever and check whether the outboard motor tilts up and down smoothlyTilt up the outboard motor and check whether it is held in the position by setting the tilt lever in the "Lock" positionCheck whether the tilt stopper functions with the outboard motor set in the full tilt-up position