1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 58Get this manual
7Remove battery and check condition (water level and charge)Store in cool, dry place and not in direct sunlightCheck the water level and charge periodically during storage(Note safety captions on battery labels 8If equipped, service the fuel filterIf OMC 2+4 Fuel Conditioner has not been used in the fuel mix, remove the fuel tank "" drain screw and drain the fuel tank thoroughlyReplace drain screw securely to prevent fuel leaks when tank is refilled9Remove propeller and check for damageA slightly bent propeller blade can hardly be noticed, but will affect the performance of the motorClean and lubricate the propeller shaft with OMC Triple-Guard Grease10Drain and refill gearcaseLubricate motorSee Lubrication11Look at motor carefullyMake sure screws and nuts are tight and that damaged or worn parts are replaced Make sure electrical and fuel system fasteners and clamps are tight and in good conditionFailure to do so may cause electrical sparks and fuel leakage under the engine coverFire and explosion could occur12Replace engine coverUse touch up paint where needed13Coat all outside surfaces of motor with automotive wax""