1985 OMC 65, 100 and 155 HP Models Commercial Service Manual, PN 507450-D, Page 10Get this manual
Outboard Motor Nomenclature Sometimes the words "right" and "left" are very confusing when referring to the sides of an outboard motorTherefore, the sides are referred to as STARBOARD or PORT sidesSTARBOARD means on the right hand while facing the bow (F RONT) of the boat; PORT means left handService required for OMC motors is generally one of three kinds 1Normal Care and Maintenancewhich includes putting new motor into operation, storing motors, lubrication, and care under special operating conditions such as salt water and cold weather2Operating Malfunctionsdue to improper motor mounting, propeller condition or size, boat condition, or the malfunction of some part of the motorThis includes motor tune-up procedures to keep the motor in prime operating condition3Complete Disassembly and Overhaulsuch as inspecting motor that has been submerged, or rebuilding trade-in unitsIt is important to you as the service person to determine before disassembly just what the trouble is, and how to correct it quickly and with minimum expense to the owner