Yamaha 6C Owner's Manual

Also see for 6c: Owner's manual Owner's manual Owner's manual

Contents

Specifications and requirements9Lubrication:Pre-mixed fuel and oilRecommended gear oil:Hypoid gear oil SAE#90Gear oil quantity:0.160 L (0.169 US qt, 0.141 Imp.qt)Tightening torque for engine:Spark plug:25.0 Nm (2.55 kgf-m, 18.4 ft-lb)Propeller nut:17.0 Nm (1.73 kgf-m, 12.5 ft-lb)EMU33554Installation requirementsEMU33564Boat horsepower ratingWARNINGEWM01560Overpowering a boat can cause severeinstability.Before installing the outboard motor(s), con-firm that the total horsepower of your out-board motor(s) does not exceed the boatsmaximum horsepower rating. See the boat’scapacity plate or contact the manufacturer.EMU33571Mounting motorWARNINGEWM01570 Improper mounting of the outboard mo-tor could result in hazardous condi-tions such as poor handling, loss ofcontrol, or fire hazards. Because the motor is very heavy, spe-cial equipment and training is requiredto mount it safely.Your dealer or other person experienced inproper rigging should mount the motor usingcorrect equipment and complete rigging in-structions. For further information, see page18.EMU34195Propeller selectionNext to selecting an outboard motor, select-ing the right propeller is one of the most im-portant purchasing decisions a boater canmake. The type, size, and design of your pro-peller have a direct impact on acceleration,top speed, fuel economy, and even enginelife. Yamaha designs and manufactures pro-pellers for every Yamaha outboard motorand every application.Your outboard motor came with a Yamahapropeller selected to perform well over arange of applications, but there may be useswhere a different propeller would be moreappropriate.Your Yamaha dealer can help you select theright propeller for your boating needs. Selecta propeller that will allow the engine to reachthe middle or upper half of the operatingrange at full throttle with the maximum boat-load. Generally, select a larger pitch propel-ler for a smaller operating load and a smallerpitch propeller for a heavier load. If you carryloads that vary widely, select the propellerthat lets the engine run in the proper rangefor your maximum load but remember thatyou may need to reduce your throttle settingto stay within the recommended enginespeed range when carrying lighter loads.To check the propeller, see page 44.