Yamaha 6C Owner's Manual

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Yamaha 6C Owner's Manual Manual pdf 15 page image

Specifications and requirements10Recommended 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 requirementsEMU33563Boat horsepower ratingWARNINGEWM01560Overpowering a boat can cause severeinstability.Before installing the outboard motor(s), con-firm that the total horsepower of your mo-tor(s) does not exceed the boats maximumhorsepower rating. See the boat’s capacityplate 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 page20.EMU34192Propeller selectionNext to selecting an outboard, choosing theright propeller is one of the most importantpurchasing decisions a boater can make.The type, size, and design of your propellerhave a direct impact on acceleration, topspeed, fuel economy, and even engine life.Yamaha designs and manufactures propel-lers for every Yamaha outboard motor andevery application.Your outboard motor came with a Yamahapropeller chosen 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, chose a larger pitch propel-ler for a smaller operating load and a smallerpitch propeller for a heavier load. If you carryloads that vary widely, chose 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.For instructions on propeller removal and in-stallation, see page 48.1. Propeller diameter in inches2. Propeller pitch in inchesZMU04605-x1 2 3